Chapter 22, Problem 22.81QP

(a)

Interpretation Introduction

Interpretation:

For the low spin complex $\left[Fe{\left(en\right)}_{2}C{l}_2\right]Cl$, the following have to be determined –

Geometry of complex ion

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.

(b)

Interpretation Introduction

Interpretation:

For the low spin complex $\left[Fe{\left(en\right)}_{2}C{l}_2\right]Cl$, the following have to be determined –

Oxidation state of $Fe$

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.

(c)

Interpretation Introduction

Interpretation:

For the low spin complex $\left[Fe{\left(en\right)}_{2}C{l}_2\right]Cl$, the following have to be determined –

Geometric isomers and optical activity

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.