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IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals
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IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals

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IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals

IB Chemistry Transition metal complexes, coloured complex ions and splitting of 3d orbitals

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  • 1. Video Tutorial on Properties of TransitionMetals, Complex ions and splitting of dorbitals for colour formation . Prepared by Lawrence Kok http://lawrencekok.blogspot.com
  • 2. Transition Metals – d block elements with half/partially filled d orbitals
  • 3. Properties of Transition metals • Coloured Complexes • Variable oxidation states • Catalytic Properties •Complex ions Taken from:http://www.chemguide.co.uk/inorganic/transition/features.htmlTaken from:http://alevelchem.com/aqa_a_level_ Taken from:http://elementalolympics.wordpress.com/2011/02/28/variable-oxidation-chemistry/unit3.5/s354/02.htm states-and-catalysts/
  • 4. Properties of Transition Metals – Variable Oxidation State
  • 5. Properties of Transition Metals – Complex ions formation Drawing complex ion • Overall charged on complex ion metal • Metal ion in the center (+ve charged) • Ligands attached • Dative bonds from ligands
  • 6. Complex ions with diff metal ions, diff ligands, oxidation state and overall charged
  • 7. How to name Complex ions and its ligandsNaming of Copper (II) Complexes
  • 8. Strong ligand displaces weaker ligandComplex ions with different ligands – different colours Copper with ligand water – Blue Copper with ligand ammonia – Deep Blue Copper with ligand chloride - Yellow Cobalt with ligand water – Pink Cobalt with ligand chloride - Blue
  • 9. Properties of Transition Metals – Coloured ComplexesWhy transition metals ion complexes have different colour?Why Titanium (III) ion is violet ? Taken from: http://www.chm.bris.ac.uk/webprojects2003/rogers/998/chemlab.htm
  • 10. Colour formation due to splitting of 3d orbitals by ligandsSplitting of 3d orbitals by ligands – allow electronic transition from lower to higher state
  • 11. Ti 3+ transmit blue/violet region BUT absorb green/orange/redTi 3+ violet due to absorption of green/yellow region to excite electrons to higher orbital level
  • 12. Cu 2+ transmit blue/violet region BUT absorb green/orange/redCu 2+ blue due to absorption of green/yellow to excite electrons to higher level
  • 13. Transition metal have different colours due to• splitting of 3d orbitals• presence of ligands which causes splitting• partially filled 3d orbitalsWhy some are colourless ? Cu 2+ anhydrous – colourless Cu 1+ hydrous – colourless Zn 2+ hydrous – colourless Sc 3+ hydrous – colourless Cu 2+ hydrous - colourCuSO4 (anhydrous) without ligands - Colourless
  • 14. Sc 3+ ion with ligand water - ColourlessZn 2+ ion with ligand water - Colourless
  • 15. Cu 1+ ion with ligand water - ColourlessCu 2+ ion with ligand water – Colour Blue
  • 16. Catalyst speed up reaction by Taken from:http://comp.chem.umn.edu/itccd/Catalytics.htmlTaken from:http://gcserevision101.wordpress.com/chemistry-c3/
  • 17. Uses of catalystVideo on colour formation due to different ligands with different metals ionClick here to view
  • 18. AcknowledgementsThanks to source of pictures and video used in this presentationThanks to Creative Commons for excellent contribution on licenseshttp://creativecommons.org/licenses/Prepared by Lawrence KokCheck out more video tutorials from my site and hope you enjoy this tutorialhttp://lawrencekok.blogspot.com

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