This document provides an overview of hydrocarbons and their bonding properties. It begins by classifying hydrocarbons into aliphatic and aromatic groups. It then discusses the valence bond and molecular orbital models of bonding in hydrogen and methane. Subsequent sections cover sp3 hybridization and bonding in ethane and propane. The document also introduces alkenes and alkynes, discussing sp2 and sp hybridization and pi bonding in ethylene and acetylene. Later sections cover nomenclature of alkanes and cycloalkanes, as well as their physical and chemical properties.
This document provides an organic chemistry presentation by Rana Harshil. It discusses key topics in organic chemistry including what organic chemistry is, homologous series and their properties, empirical, molecular and structural formulas, isomers, drawing structural formulas for alkanes and alkenes, and IUPAC naming of alkanes and alkenes. Examples are provided to illustrate each concept, such as trends in boiling points for alkanes, structural formulas for isomers of C4H10O, and naming various branched alkanes and alkenes up to C6.
This document provides information about an organic chemistry course for health sciences students. It includes details about evaluation methods, topics to be covered in the course, and the aims and objectives of the course. The topics that will be covered include introduction to organic chemistry, alkanes, cycloalkanes, alkenes, alkynes, alkyl halides, benzene and aromatic compounds, alcohols, phenols, ethers, aldehydes, ketones, carboxylic acids, and amines. The aim of the course is to introduce key concepts of organic chemistry and provide foundation for further studies in chemistry and related fields.
This document provides an introduction to organic chemistry, including definitions of organic compounds, differences between organic and inorganic compounds, and key concepts. It discusses the early history when vitalism prevented the synthesis of organic compounds. Friedrich Wöhler was the first to synthesize an organic compound in a laboratory. The document also outlines types of organic compounds like hydrocarbons, and how they are named according to IUPAC rules. Carbon properties and different hybridizations that allow multiple bonds are covered.
This document provides an introduction to organic chemistry, including definitions of key terms and concepts. It discusses:
- The early history of organic chemistry and the discovery that organic compounds could be synthesized in the lab.
- The main differences between organic and inorganic compounds in terms of their properties and bonding.
- The central role of carbon atoms in organic compounds and their ability to form chains and complex structures through catenation.
- The different classes of hydrocarbons including alkanes, alkenes, alkynes, aromatics, and their IUPAC naming conventions.
- Important organic functional groups derived from hydrocarbons like alkyl halides, alcohols, ethers, al
1. The document discusses different types of organic compounds including alkanes, alkenes, alkynes, aromatics, alcohols, and halogen substituents.
2. Key topics include naming conventions for branched and cyclic alkanes, geometric and structural isomers, benzene and aromatic compounds, functional groups like alcohols and halocarbons.
3. Examples are given of petroleum and natural gas as sources of hydrocarbons and how chlorofluorocarbons deplete the ozone layer.
This document provides an overview of organic chemistry concepts including:
1. Alkanes, their structures, nomenclature using IUPAC rules, and properties such as isomerism.
2. Cycloalkanes including naming conventions and structural features.
3. An introduction to other functional groups like alkenes, alkynes, alcohols, ethers, aldehydes, ketones, carboxylic acids, esters and amines.
Chemistry- JIB Organic Chemistry ReviewSam Richard
This document provides an overview of organic chemistry concepts including:
1. Alkanes, their structures, nomenclature using IUPAC rules, and properties such as isomerism.
2. Cycloalkanes including naming conventions and structural features.
3. An introduction to other functional groups like alkenes, alkynes, alcohols, ethers, aldehydes, ketones, carboxylic acids, esters and amines.
B sc i chemistry i u iii(a) alkane,alkene and alkynes aRai University
This document provides an overview of organic chemistry concepts including:
- Organic compounds contain carbon and are found in living things. Key elements are hydrogen, oxygen, nitrogen, sulfur.
- Hydrocarbons are the simplest organic compounds and are divided into aliphatic and aromatic types.
- Aliphatic hydrocarbons include alkanes (single bonds), alkenes (double bonds), and alkynes (triple bonds).
- IUPAC nomenclature rules are used to systematically name organic compounds based on functional groups, chain length, and substituents.
- Derivatives of hydrocarbons like alkenes and alkynes introduce double and triple bonds that impact properties. Geometric isomers
This document provides an organic chemistry presentation by Rana Harshil. It discusses key topics in organic chemistry including what organic chemistry is, homologous series and their properties, empirical, molecular and structural formulas, isomers, drawing structural formulas for alkanes and alkenes, and IUPAC naming of alkanes and alkenes. Examples are provided to illustrate each concept, such as trends in boiling points for alkanes, structural formulas for isomers of C4H10O, and naming various branched alkanes and alkenes up to C6.
This document provides information about an organic chemistry course for health sciences students. It includes details about evaluation methods, topics to be covered in the course, and the aims and objectives of the course. The topics that will be covered include introduction to organic chemistry, alkanes, cycloalkanes, alkenes, alkynes, alkyl halides, benzene and aromatic compounds, alcohols, phenols, ethers, aldehydes, ketones, carboxylic acids, and amines. The aim of the course is to introduce key concepts of organic chemistry and provide foundation for further studies in chemistry and related fields.
This document provides an introduction to organic chemistry, including definitions of organic compounds, differences between organic and inorganic compounds, and key concepts. It discusses the early history when vitalism prevented the synthesis of organic compounds. Friedrich Wöhler was the first to synthesize an organic compound in a laboratory. The document also outlines types of organic compounds like hydrocarbons, and how they are named according to IUPAC rules. Carbon properties and different hybridizations that allow multiple bonds are covered.
This document provides an introduction to organic chemistry, including definitions of key terms and concepts. It discusses:
- The early history of organic chemistry and the discovery that organic compounds could be synthesized in the lab.
- The main differences between organic and inorganic compounds in terms of their properties and bonding.
- The central role of carbon atoms in organic compounds and their ability to form chains and complex structures through catenation.
- The different classes of hydrocarbons including alkanes, alkenes, alkynes, aromatics, and their IUPAC naming conventions.
- Important organic functional groups derived from hydrocarbons like alkyl halides, alcohols, ethers, al
1. The document discusses different types of organic compounds including alkanes, alkenes, alkynes, aromatics, alcohols, and halogen substituents.
2. Key topics include naming conventions for branched and cyclic alkanes, geometric and structural isomers, benzene and aromatic compounds, functional groups like alcohols and halocarbons.
3. Examples are given of petroleum and natural gas as sources of hydrocarbons and how chlorofluorocarbons deplete the ozone layer.
This document provides an overview of organic chemistry concepts including:
1. Alkanes, their structures, nomenclature using IUPAC rules, and properties such as isomerism.
2. Cycloalkanes including naming conventions and structural features.
3. An introduction to other functional groups like alkenes, alkynes, alcohols, ethers, aldehydes, ketones, carboxylic acids, esters and amines.
Chemistry- JIB Organic Chemistry ReviewSam Richard
This document provides an overview of organic chemistry concepts including:
1. Alkanes, their structures, nomenclature using IUPAC rules, and properties such as isomerism.
2. Cycloalkanes including naming conventions and structural features.
3. An introduction to other functional groups like alkenes, alkynes, alcohols, ethers, aldehydes, ketones, carboxylic acids, esters and amines.
B sc i chemistry i u iii(a) alkane,alkene and alkynes aRai University
This document provides an overview of organic chemistry concepts including:
- Organic compounds contain carbon and are found in living things. Key elements are hydrogen, oxygen, nitrogen, sulfur.
- Hydrocarbons are the simplest organic compounds and are divided into aliphatic and aromatic types.
- Aliphatic hydrocarbons include alkanes (single bonds), alkenes (double bonds), and alkynes (triple bonds).
- IUPAC nomenclature rules are used to systematically name organic compounds based on functional groups, chain length, and substituents.
- Derivatives of hydrocarbons like alkenes and alkynes introduce double and triple bonds that impact properties. Geometric isomers
B sc_I_General chemistry U-III(A) Alkane,alkene and alkynes Rai University
This document provides an overview of organic chemistry concepts including:
- Organic compounds contain carbon and are found in living things. Key elements are hydrogen, oxygen, nitrogen, sulfur.
- Hydrocarbons are the simplest organic compounds and can be aliphatic or aromatic. Aliphatic hydrocarbons include alkanes, alkenes, and alkynes which differ by their carbon bonding.
- IUPAC nomenclature systematically names organic compounds based on carbon chain length and functional groups. Functional groups determine a molecule's properties.
This document covers organic chemistry concepts including alkanes, cycloalkanes, and their nomenclature. Key points include:
- The lesson will introduce alkanes and cycloalkanes, with two quizzes to follow. Naming and drawing structural formulas using IUPAC nomenclature will be covered.
- Standards include describing homologous series, naming organic compounds using IUPAC, and drawing and naming alkanes and cyclic structures up to C10.
- Introduction covers bonding rules for carbon, oxygen, nitrogen, hydrogen and halogens in organic compounds. Bonding and structural representations such as Lewis, condensed and line structures are defined.
Organic chemistry is the study of carbon compounds. Hydrocarbons are organic compounds composed entirely of carbon and hydrogen. There are two main types of hydrocarbons: aliphatic and aromatic. Aliphatic hydrocarbons can be classified as alkanes, alkenes, alkynes, or cycloalkanes depending on the presence of single, double, or triple carbon bonds. Alkanes contain only single bonds and follow the general formula CnH2n+2. Common reactions of alkanes include combustion and halogenation. Alkenes contain double bonds and have the formula CnH2n. They exhibit geometric isomerism and undergo addition reactions. Alkynes have triple bonds and the
This document provides information on hydrocarbon compounds and organic chemistry. It discusses the earliest understanding of organic chemistry and how scientists now define it. It also describes the simplest hydrocarbons - methane and ethane. Additionally, it explains the structures, properties and naming conventions of alkanes, alkenes and alkynes. Structural isomers, which have the same molecular formula but different structures, are also mentioned.
Alkanes types and iupac naming reactions .pptsalman91742
This document provides an overview of alkanes and nomenclature rules for naming organic compounds. It discusses the properties and structures of alkanes, including that they are saturated hydrocarbons made of C-C and C-H bonds. Cycloalkanes contain carbon rings. Naming involves identifying the parent chain, numbering substituents, and combining names. Physical properties are also reviewed, noting that many alkanes are found as fossil fuels like natural gas and petroleum. Crude oil is separated through distillation into usable fuel fractions like gasoline and diesel based on boiling points.
Hydrocarbons are organic compounds made of carbon and hydrogen. They can be classified as saturated, unsaturated, or aromatic based on the presence of double or triple carbon bonds or benzene rings. Saturated hydrocarbons contain only single carbon-carbon bonds and include alkanes such as methane and propane. Unsaturated hydrocarbons have one or more double or triple carbon bonds and include alkenes like ethene and alkynes such as acetylene. Aromatic hydrocarbons contain benzene rings, examples being toluene and naphthalene. Alkanes undergo substitution, combustion, and cracking reactions.
Organic chemistry and inorganic chemistry .pdfhferdous426
This document describes the contents of a General Chemistry course. The course covers topics including atomic structure, the periodic table, chemical formulas and equations, acids and bases, gases, chemical kinetics, and organic chemistry. Specific topics listed within organic chemistry include hydrocarbons, alcohols, amines, carbonyl compounds, carboxylic acids, and carbohydrates. The course also covers modern applications of chemistry such as fuels, fertilizers, medicine, and electronic industries.
This document provides an overview of organic chemistry, including key topics such as:
- Organic compounds contain carbon and are found in many common materials.
- Organic chemistry is the study of organic compounds, their structures, properties, and reactions.
- Carbon atoms can form multiple bonds with other carbons, allowing for a large number of organic compounds.
- Hydrocarbons are organic compounds made of only carbon and hydrogen, and can be classified as aliphatic or aromatic.
The document discusses hydrocarbon structures and alkanes. It begins by classifying hydrocarbons and then focuses on alkanes. Alkanes are hydrocarbons where all bonds are single bonds. The structures of methane, ethane, and propane are examined. Hybridization of atomic orbitals, specifically sp3 hybridization, allows carbon to form four strong single bonds in alkanes and gives molecules like methane their tetrahedral geometry. Higher alkanes are also discussed, noting how physical properties like boiling point depend on molecular size and branching.
This document provides an introduction to organic chemistry, focusing on hydrocarbons. It defines organic chemistry as the study of carbon-containing compounds, of which over 90% are organic. The key types of hydrocarbons discussed are alkanes (containing only single bonds), alkenes (containing carbon-carbon double bonds), and alkynes (containing carbon-carbon triple bonds). The document outlines methods for naming and drawing structural formulas of straight-chain and branched alkanes, as well as alkenes and alkynes.
Alkanes are saturated hydrocarbons whose carbon-carbon bonds are single bonds. The general formula for alkanes is CnH2n+2. The first ten alkanes are methane, ethane, propane, butane, pentane, hexane, heptane, octane, nonane and decane. Alkanes undergo combustion reactions and halogenation reactions when exposed to halogens like chlorine in the presence of UV light or heat. Haloalkanes are named according to IUPAC rules by identifying the parent alkane, halogen prefix, and halogen position number.
Hydrocarbons can be classified into three main categories based on the types of carbon-carbon bonds present: saturated hydrocarbons containing single bonds, unsaturated hydrocarbons containing double or triple bonds, and aromatic hydrocarbons containing benzene rings. Alkanes are saturated hydrocarbons that can be open chain or cyclic. Their properties depend on molecular size, with boiling points generally increasing with more carbon atoms. Alkanes undergo substitution and combustion reactions.
This document discusses organic chemistry concepts including alkanes, alkenes, alkynes, aromatic hydrocarbons, and hydrocarbon derivatives such as alcohols. Key points covered include the bonding abilities of carbon and other atoms, structural and geometric isomers, IUPAC naming of straight-chain and branched alkanes, alkenes and cycloalkanes. Benzene and its resonance structure are explained. Common functional groups like alcohols are introduced.
Alkynes are hydrocarbons with a triple bond between two carbon atoms. Common alkynes include acetylene (C2H2), propyne, butyne, pentyne, etc. Their molecular formulas follow the pattern of CnH2n-2. Alkynes are named based on the number of carbons and whether the chain is straight or branched. They are generally reactive due to the triple bond. Alkynes undergo addition, polymerization, substitution, and combustion reactions. They can also form isomers based on chain structure or carbon position.
1. The document provides an introduction to organic chemistry concepts including three-dimensional representations of molecules, naming conventions, functional groups, and oxidation levels.
2. IUPAC nomenclature rules are explained for naming organic compounds systematically based on identifying the parent chain, functional groups, and substituents.
3. Common functional groups like alcohols, amines, acids, esters and others are defined along with their substitution levels.
Alkynes are hydrocarbons containing carbon-carbon triple bonds. Their carbon atoms are sp-hybridized, giving them a linear structure. Alkynes can be synthesized through elimination reactions or by dehydrohalogenation of vicinal or geminal dihalides. They undergo characteristic addition reactions across the triple bond.
This document discusses hydrocarbons and organic chemistry. It begins by explaining that organic chemistry originally referred to compounds from living organisms, but now refers to compounds containing carbon. The simplest hydrocarbons are alkanes, which contain only carbon and hydrogen in single bonds. Alkanes can be straight-chain or branched-chain. Straight-chain alkanes have carbons in a chain, while branched alkanes have other atoms like hydrogen attached to the carbon chain. The document provides examples of naming straight-chain and branched alkanes based on IUPAC nomenclature rules.
Alkenes contain carbon-carbon double bonds which give them unique reactivity and properties. There are two types of bonds in a C=C double bond - a sigma bond and a pi bond. The pi bond is weaker and is responsible for alkenes being more reactive than alkanes. Alkenes exhibit geometric isomers (cis/trans or E/Z) due to the rigidity of the pi bond. Common methods for synthesizing alkenes include elimination reactions and dehydrohalogenation reactions using a strong base. Alkenes are important industrially as monomers for polymers such as polystyrene and PTFE.
This document discusses naming hydrocarbon compounds. It defines hydrocarbons as organic compounds containing only carbon and hydrogen. The three main types of hydrocarbons are alkanes containing single bonds, alkenes containing double bonds, and alkynes containing triple bonds. Alkanes are named using prefixes to indicate the number of carbons and the suffix "-ane". Branched alkanes are named by identifying the parent chain and substituent groups. Isomers are compounds with the same molecular formula but different structures. The document provides examples of naming hydrocarbon structures and identifying isomers.
This short document provides 4 steps to make yourself unhappy: cry, hate life, and die. It suggests becoming unhappy by engaging in negative emotions and having a poor outlook on life.
B sc_I_General chemistry U-III(A) Alkane,alkene and alkynes Rai University
This document provides an overview of organic chemistry concepts including:
- Organic compounds contain carbon and are found in living things. Key elements are hydrogen, oxygen, nitrogen, sulfur.
- Hydrocarbons are the simplest organic compounds and can be aliphatic or aromatic. Aliphatic hydrocarbons include alkanes, alkenes, and alkynes which differ by their carbon bonding.
- IUPAC nomenclature systematically names organic compounds based on carbon chain length and functional groups. Functional groups determine a molecule's properties.
This document covers organic chemistry concepts including alkanes, cycloalkanes, and their nomenclature. Key points include:
- The lesson will introduce alkanes and cycloalkanes, with two quizzes to follow. Naming and drawing structural formulas using IUPAC nomenclature will be covered.
- Standards include describing homologous series, naming organic compounds using IUPAC, and drawing and naming alkanes and cyclic structures up to C10.
- Introduction covers bonding rules for carbon, oxygen, nitrogen, hydrogen and halogens in organic compounds. Bonding and structural representations such as Lewis, condensed and line structures are defined.
Organic chemistry is the study of carbon compounds. Hydrocarbons are organic compounds composed entirely of carbon and hydrogen. There are two main types of hydrocarbons: aliphatic and aromatic. Aliphatic hydrocarbons can be classified as alkanes, alkenes, alkynes, or cycloalkanes depending on the presence of single, double, or triple carbon bonds. Alkanes contain only single bonds and follow the general formula CnH2n+2. Common reactions of alkanes include combustion and halogenation. Alkenes contain double bonds and have the formula CnH2n. They exhibit geometric isomerism and undergo addition reactions. Alkynes have triple bonds and the
This document provides information on hydrocarbon compounds and organic chemistry. It discusses the earliest understanding of organic chemistry and how scientists now define it. It also describes the simplest hydrocarbons - methane and ethane. Additionally, it explains the structures, properties and naming conventions of alkanes, alkenes and alkynes. Structural isomers, which have the same molecular formula but different structures, are also mentioned.
Alkanes types and iupac naming reactions .pptsalman91742
This document provides an overview of alkanes and nomenclature rules for naming organic compounds. It discusses the properties and structures of alkanes, including that they are saturated hydrocarbons made of C-C and C-H bonds. Cycloalkanes contain carbon rings. Naming involves identifying the parent chain, numbering substituents, and combining names. Physical properties are also reviewed, noting that many alkanes are found as fossil fuels like natural gas and petroleum. Crude oil is separated through distillation into usable fuel fractions like gasoline and diesel based on boiling points.
Hydrocarbons are organic compounds made of carbon and hydrogen. They can be classified as saturated, unsaturated, or aromatic based on the presence of double or triple carbon bonds or benzene rings. Saturated hydrocarbons contain only single carbon-carbon bonds and include alkanes such as methane and propane. Unsaturated hydrocarbons have one or more double or triple carbon bonds and include alkenes like ethene and alkynes such as acetylene. Aromatic hydrocarbons contain benzene rings, examples being toluene and naphthalene. Alkanes undergo substitution, combustion, and cracking reactions.
Organic chemistry and inorganic chemistry .pdfhferdous426
This document describes the contents of a General Chemistry course. The course covers topics including atomic structure, the periodic table, chemical formulas and equations, acids and bases, gases, chemical kinetics, and organic chemistry. Specific topics listed within organic chemistry include hydrocarbons, alcohols, amines, carbonyl compounds, carboxylic acids, and carbohydrates. The course also covers modern applications of chemistry such as fuels, fertilizers, medicine, and electronic industries.
This document provides an overview of organic chemistry, including key topics such as:
- Organic compounds contain carbon and are found in many common materials.
- Organic chemistry is the study of organic compounds, their structures, properties, and reactions.
- Carbon atoms can form multiple bonds with other carbons, allowing for a large number of organic compounds.
- Hydrocarbons are organic compounds made of only carbon and hydrogen, and can be classified as aliphatic or aromatic.
The document discusses hydrocarbon structures and alkanes. It begins by classifying hydrocarbons and then focuses on alkanes. Alkanes are hydrocarbons where all bonds are single bonds. The structures of methane, ethane, and propane are examined. Hybridization of atomic orbitals, specifically sp3 hybridization, allows carbon to form four strong single bonds in alkanes and gives molecules like methane their tetrahedral geometry. Higher alkanes are also discussed, noting how physical properties like boiling point depend on molecular size and branching.
This document provides an introduction to organic chemistry, focusing on hydrocarbons. It defines organic chemistry as the study of carbon-containing compounds, of which over 90% are organic. The key types of hydrocarbons discussed are alkanes (containing only single bonds), alkenes (containing carbon-carbon double bonds), and alkynes (containing carbon-carbon triple bonds). The document outlines methods for naming and drawing structural formulas of straight-chain and branched alkanes, as well as alkenes and alkynes.
Alkanes are saturated hydrocarbons whose carbon-carbon bonds are single bonds. The general formula for alkanes is CnH2n+2. The first ten alkanes are methane, ethane, propane, butane, pentane, hexane, heptane, octane, nonane and decane. Alkanes undergo combustion reactions and halogenation reactions when exposed to halogens like chlorine in the presence of UV light or heat. Haloalkanes are named according to IUPAC rules by identifying the parent alkane, halogen prefix, and halogen position number.
Hydrocarbons can be classified into three main categories based on the types of carbon-carbon bonds present: saturated hydrocarbons containing single bonds, unsaturated hydrocarbons containing double or triple bonds, and aromatic hydrocarbons containing benzene rings. Alkanes are saturated hydrocarbons that can be open chain or cyclic. Their properties depend on molecular size, with boiling points generally increasing with more carbon atoms. Alkanes undergo substitution and combustion reactions.
This document discusses organic chemistry concepts including alkanes, alkenes, alkynes, aromatic hydrocarbons, and hydrocarbon derivatives such as alcohols. Key points covered include the bonding abilities of carbon and other atoms, structural and geometric isomers, IUPAC naming of straight-chain and branched alkanes, alkenes and cycloalkanes. Benzene and its resonance structure are explained. Common functional groups like alcohols are introduced.
Alkynes are hydrocarbons with a triple bond between two carbon atoms. Common alkynes include acetylene (C2H2), propyne, butyne, pentyne, etc. Their molecular formulas follow the pattern of CnH2n-2. Alkynes are named based on the number of carbons and whether the chain is straight or branched. They are generally reactive due to the triple bond. Alkynes undergo addition, polymerization, substitution, and combustion reactions. They can also form isomers based on chain structure or carbon position.
1. The document provides an introduction to organic chemistry concepts including three-dimensional representations of molecules, naming conventions, functional groups, and oxidation levels.
2. IUPAC nomenclature rules are explained for naming organic compounds systematically based on identifying the parent chain, functional groups, and substituents.
3. Common functional groups like alcohols, amines, acids, esters and others are defined along with their substitution levels.
Alkynes are hydrocarbons containing carbon-carbon triple bonds. Their carbon atoms are sp-hybridized, giving them a linear structure. Alkynes can be synthesized through elimination reactions or by dehydrohalogenation of vicinal or geminal dihalides. They undergo characteristic addition reactions across the triple bond.
This document discusses hydrocarbons and organic chemistry. It begins by explaining that organic chemistry originally referred to compounds from living organisms, but now refers to compounds containing carbon. The simplest hydrocarbons are alkanes, which contain only carbon and hydrogen in single bonds. Alkanes can be straight-chain or branched-chain. Straight-chain alkanes have carbons in a chain, while branched alkanes have other atoms like hydrogen attached to the carbon chain. The document provides examples of naming straight-chain and branched alkanes based on IUPAC nomenclature rules.
Alkenes contain carbon-carbon double bonds which give them unique reactivity and properties. There are two types of bonds in a C=C double bond - a sigma bond and a pi bond. The pi bond is weaker and is responsible for alkenes being more reactive than alkanes. Alkenes exhibit geometric isomers (cis/trans or E/Z) due to the rigidity of the pi bond. Common methods for synthesizing alkenes include elimination reactions and dehydrohalogenation reactions using a strong base. Alkenes are important industrially as monomers for polymers such as polystyrene and PTFE.
This document discusses naming hydrocarbon compounds. It defines hydrocarbons as organic compounds containing only carbon and hydrogen. The three main types of hydrocarbons are alkanes containing single bonds, alkenes containing double bonds, and alkynes containing triple bonds. Alkanes are named using prefixes to indicate the number of carbons and the suffix "-ane". Branched alkanes are named by identifying the parent chain and substituent groups. Isomers are compounds with the same molecular formula but different structures. The document provides examples of naming hydrocarbon structures and identifying isomers.
Similar to Alkanes and Cycloalkanes: Introduction to Hydrocarbons (20)
This short document provides 4 steps to make yourself unhappy: cry, hate life, and die. It suggests becoming unhappy by engaging in negative emotions and having a poor outlook on life.
1. Alkyl halides are organic compounds containing a halogen atom bonded to a carbon. They are classified as primary, secondary, or tertiary based on the number of carbons bonded to the halogenated carbon.
2. Nucleophilic substitution reactions involve three components: an alkyl halide leaving group, a nucleophile, and a solvent. The reaction can proceed by either an SN1 or SN2 mechanism.
3. The type of alkyl halide and nucleophile determine the reaction mechanism and products. Steric effects influence reactivity in SN1 and SN2 reactions.
This document discusses alkanes, which are organic compounds composed of carbon and hydrogen. Alkanes contain chains or rings of single-bonded carbon atoms. Key points include:
- Alkanes are saturated hydrocarbons that have the general formula CnH2n+2. Butane and larger alkanes can exhibit structural isomerism.
- The IUPAC system is used to systematically name alkanes based on the number and position of carbon atoms and any substituents.
- Common alkyl substituents and their names are given. Examples of naming substituted alkanes are provided.
- At high temperatures, alkanes undergo combustion reactions with oxygen to produce
Chapter_2 (1) Introduction to Hydrocarbons.pptDrVijayKotraFOP
This document provides an overview of hydrocarbons and their bonding properties. It begins by classifying hydrocarbons into aliphatic and aromatic groups. It then discusses the valence bond and molecular orbital models of bonding in hydrogen and methane. Subsequent sections cover sp3 hybridization and bonding in ethane and propane. The document also introduces alkenes and alkynes, discussing sp2 and sp hybridization and pi bonding in ethylene and acetylene. Later sections cover nomenclature of alkanes and cycloalkanes, as well as their physical and chemical properties.
Tourism is very important for many small island developing states (SIDS) as it provides a major source of income and economic growth. However, SIDS face challenges like high tourism leakages, weak economic multipliers from tourism spending, and negative impacts on other industries from real exchange rate appreciation caused by increased tourism. While tourism can boost GDP in the short-run, it often hurts traditional exports and import competing industries in the long-run for SIDS due to these issues. Careful planning is needed to maximize tourism's benefits and minimize its costs for small island economies.
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Alkanes and Cycloalkanes: Introduction to Hydrocarbons
1. 22
Chapter 2. Alkanes and Cycloalkanes: Introduction to
Hydrocarbons
2.1: Classes of Hydrocarbons
molecules that are made up of carbon and hydrogen
1. Aliphatic
a. alkanes - contain C-C single bonds - CnH(2n+2)
saturated hydrocarbons
b. alkenes - contain C=C double bonds - CnH(2n)
c. alkynes - contain CΞC triple bonds - CnH(2n-2)
2. Arenes (aromatics) - cyclic hydrocarbons with alternating
C-C single and double bonds
2. 23
2.2: Electron Waves and Chemical Bonds (please read)
2.3: Bonding in H2: The Valence Bond Model
electrons in atomic orbitals combine to form electron pairs in
molecular orbitals
H H H H + 435 KJ/mol
Sigma (s) bond -
orbital overlap is
along internuclear
axis
(Figure 2.1, p. 00)
3. 24
Principle of maximum overlap (L. Pauling) - the strength of a
bond is directly proportional to the amount of orbital overlap
2.4: Bonding in H2: The Molecular Orbital Model - Molecular
orbitals (MOs) are linear combinations of atomic orbitals (AOs)
LCAO: # of MOs = # of AOs
+
-
no nodes
one node
nodal plane
- 436 KJ/mol
+ 436 KJ/mol
s
s*
+ +
(Figure 2.6, p. 64)
4. 25
2.5: Introduction to Alkanes: Methane, Ethane, and Propane
Alkanes have the general formula CnH2n+2
Methane Ethane Propane
(CH4) (C2H6) (C3H8)
CH4 CH3CH3 CH3CH2CH3
bp= -160° C bp= -89° C bp= -42° C
C-C bond length = 153 pm
C-H bond length = 111 pm
Bond angles between 109 - 112 ° (tetrahedral geometry)
(Figure 2.7, p. 64)
5. 26
2.6: sp3 Hybridization and Bonding in Methane
All four C-H bond of
methane are identical
All four sp3 hybrid orbital
are equivalent
6. 27
sp3 Hybridized Orbitals = 1 part s-orbital + 3 parts p-orbitals
- +
C-H bond strength = 435 KJ/mol
(Figure 2.9, p. 66)
7. 28
sp3 hybridized orbital are more directional allowing for greater
orbital overlap and strong bonds compared to unhybridized orbitals
2.7: Bonding in Ethane
DH°C-C = 376 KJ/mol
(Figure 2.11, p. 68)
8. 29
2.8: Isomeric Alkanes: The butanes
2.9: Higher n-Alkanes (please read)
2.10: The C5H12 Isomers
Isomers: compounds with the same chemical formula, but
different arrangement of atoms
Constitutional isomer: have different connectivities
(not limited to alkanes)
10. 31
Alkyl substituents (group): carbon chains which are a
substructure of a molecule
R= Rest of the molecule (mainchain)
1 CH3-R Methyl
2 CH3CH2-R Ethyl
3 CH3CH2CH2-R Propyl
4 CH3(CH2)2CH2-R Butyl
5 CH3(CH2)3CH2-R Pentyl
6 CH3(CH2)4CH2-R Hexyl
7 CH3(CH2)5CH2-R Heptyl
8 CH3(CH2)6CH2-R Octyl
9 CH3(CH2)7CH2-R Nonyl
10 CH3(CH2)8CH2-R Decyl
11. 32
Rules for Systematic Nomenclature of Alkanes
1. Find the parent chain
a. Identify the longest continuous carbon chain as the
parent chain.
b. If more than one different chains are of equal length
(number of carbons), choose the one with the greater
number of branch points (substituents) as the parent.
12. 33
2. Numbering the carbons of the parent chain
a. Number the carbon atoms of the parent chain so that any
branch points have the lowest possible number
b. If there is branching equidistant from both ends of the
parent chain, number so the second branch point has the
lowest number.
13. 34
3. Substituents
a. Identify and number the substituents and list
them in alphabetical order.
b. If there are two substituents on the same carbon,
assign them the same number.
4. Write out the name
a. Write out the name as a single word:
hyphens (-) separate prefixes
commas (,) separate numbers
b. Substituents are listed in alphabetical order
c. If two or more identical substituents are present use the
prefixes: di- for two
tri- for three
tetra- for four
14. 35
note: these prefixes (di-, tri-, tetra-, etc.) are not used for
alphabetizing purposes
5. Complex Substituents (substituents with branching)
a. Named by applying the four previous rules with some
modification
b. Number the complex substituent separately from the parent.
Begin numbering at the point of attachment to the parent
chain
c. Complex substituents are set off by parenthesis.
15. 36
Nonsystematic (trivial) Names:
3-carbons:
4-Carbons:
5- Carbons:
Alphabetizing trivial names:
Iso- and neo are part of the alkyl group name and are used for alphabetizing.
sec- and tert- are not included in the alphabetical order.
17. 38
Naming Cycloalkanes General Formula: CnH(2n)
1. Parent Chain
a. Use the cycloalkane as the parent chain if it has a greater number of
carbons than any alkyl substituent.
b. If an alkyl chain off the cycloalkane has a greater number of carbons,
then use the alkyl chain as the parent and the cycloalkane as a
cycloalkyl- substituent.
2. Numbering the Cycloalkane
a. When numbering the carbons of a cycloalkane, start with a substituted
carbon so that the substituted carbons have the lowest numbers (sum).
18. 39
2. b. When two or more different substituents are present, number according
to alphabetical order.
3. Halogen Substituents
Halogen substituents are treated exactly like alkyl groups:
-F fluoro-
-Cl chloro-
-Br bromo-
-I iodo-
19. 40
Degrees of Substitution
Primary (1°) Carbon: carbon that is bonded to only one other carbon
Secondary (2°) Carbon: carbon that is bonded to two other carbons
Tertiary (3°) Carbon: carbon that is bonded to three other carbons
Quarternary (4°) Carbon: carbon that is bonded to four other carbons
1° Hydrogens- hydrogens on a primary carbon. -CH3 (methyl group)
2° Hydrogens- hydrogens on a secondary carbon. -CH2- (methylene group)
3° Hydrogens- hydrogens on a tertiary carbon. CH (methine group)
methyl group: 1° hydrogens
methylene group: 2° hydrogens
methine group: 3° hydrogens
20. 41
2.16: Sources of Alkanes and Cycloalkanes (please read)
2.17: Physical Properties of Alkanes and Cycloalkanes
Non-nonbonding intermolecular attractive forces
(van der Waals forces)
1. Dipole – Dipole
2. Dipole – Induced-dipole
3. Induced-dipole – Induced-dipole : small instantaneous dipoles
that result from a distortion of the electron clouds. There
is an attraction between molecules as result of these
temporary dipoles
21. 42
Alkanes show: regular increase in bp and mp as the molecular
weight increase. Branching lowers the bp or alkanes
n-pentane bp= 36.1 °C
iso-pentane bp= 27.9 °C
neo-pentane bp= 9.5°C pentane 2-methylbutane 2,2-dimethylpropane
Alkanes have low polarity and are hydrophobic (low water
solubility). Solubility deceases are the number of carbons
increase
22. 43
2.18: Chemical Properties: Combustion of Alkanes
Hydrocarbons (C-H bonds) are weak to extremely weak acids
Combustion of hydrocarbons (Oxidation)
CnH2n+2 + O2 n CO2 + (n+1) H2O + heat
Heat (ΔH°) of combustion = H°(products) − H°(reactants)
Measure of relative stability
2.19: Oxidation-Reduction in Organic Chemistry
Oxidation [O]: the loss of electrons.
Increase in the number of C-X bonds, where X is an atom
more electronegative than carbon. Decrease in H content.
Reduction [H]: the gain of electrons.
Increase in number of C-Y bonds, where Y is an atom
less electronegative than carbon. Increase on H content.
24. 45
2.20: sp2 Hybridization and Bonding in Ethylene
leave one p-orbital
unhybridized
hybridize one s-orbital
and two p-orbitals
Three sp2 hybrid orbitals and
one unhybridized p-orbital
(Figure 2.19, p. 89)
27. 48
2.21: sp Hybridization and Bonding in Acetylene
leave two p-orbital
unhybridized
hybridize one s-orbital
and one p-orbitals
two sp hybrid orbitals and
two unhybridized p-orbital
(Figure 2.22, p. 91)
28. 49
CΞC triple bonds- acetylene (C2H2)
one C-C σ-bond and two C-C π-bonds
ΔHCΞC° = 835 KJ/mol
ΔHC-C° = 376 KJ/mol
ΔH1st π-bond° = 235 KJ/mol
ΔH2nd π-bond° = 224 KJ/mol
(Figure 2.23, p. 92)