The structure of the following complexes has to be drawn and whether they exhibit optical isomerism has to be determined. (a) I r ( e n ) 3 2 + (b) [ I r ( H 2 O ) 3 C l 3 ] Concept Introduction: Co-ordination compounds exhibit structural isomerism and stereoisomerism. Stereoisomerism deals with three dimensional spatial arrangements of atoms or groups of a molecule. There are two types of stereoisomerism – Geometric isomerism and optical isomerism. In optical isomerism the isomer that rotates the plane of the polarized light in clockwise direction is termed as d-isomer and the isomer rotates the plane of the polarized light in anti-clockwise direction is l-isomer. These isomers are called optical isomers and they are non-superimposable mirror images.

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Chapter 22, Problem 22.79QP

Interpretation Introduction

Interpretation:

The structure of the following complexes has to be drawn and whether they exhibit optical isomerism has to be determined.

(a) Ir(en)32+ (b) [Ir(H2O)3Cl3]

Concept Introduction:

Co-ordination compounds exhibit structural isomerism and stereoisomerism. Stereoisomerism deals with three dimensional spatial arrangements of atoms or groups of a molecule. There are two types of stereoisomerism – Geometric isomerism and optical isomerism.

In optical isomerism the isomer that rotates the plane of the polarized light in clockwise direction is termed as d-isomer and the isomer rotates the plane of the polarized light in anti-clockwise direction is l-isomer. These isomers are called optical isomers and they are non-superimposable mirror images.

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