This presentation discusses absorption and intensity shifts in compounds. It defines bathochromic and hypsochromic shifts as when the absorption maximum of a compound shifts to longer or shorter wavelengths, respectively. It also defines hyperchromic and hypochromic effects as when the absorption intensity of a compound increases or decreases, respectively. Examples are provided for each definition.

2. PRESENTATION ON
Absorption
& Intensity
Shifts

4. 
DEFINITION
When absorption
maxima (λ 𝑚𝑎𝑥) of a
compound shifts to
longer wavelength , it is
known as bathochromic
shift or red shift .
EXAMPLE

5. Definition
When absorption
maxima (λ 𝑚𝑎𝑥) of a
compound shifts to
shorter wavelength , it
is known as
hypsochromic shift or
blue shift .
Example

6. DEFINITION
When absorption
intensity (𝜖) of a
compound is
increased , it is
known as
hyperchromic effect
.
EXAMPLE

7. DEFINITION EXAMPLE
When absorption
intensity (𝜖) of a
compound is
decreased , it is
known as
hypochromic effect
.