Chapter 21, Problem 21.99SP

Interpretation Introduction

(a)

Interpretation:

The stereoisomerism of the starting material $\left[{\text{Co(NH}}_{\text{3}}{\text{)}}_{\text{3}}{{\text{(NO}}_{\text{2}}\text{)}}_{\text{3}}\right]$ where all the 3 NO₂ ligands are bonded to Co through the N atom needs to be determined.

Concept introduction:

The form of isomerism in which molecules have the same molecular formula and differ in their orientation of atoms is said to be stereoisomerism. In other words, if the structure of the molecules can vary but their molecular formula is same, then it is stereoisomerism.

Interpretation Introduction

(b)

Interpretation:

The isomers that forms the product ${\left[{\text{Co(NH}}_{\text{3}}{\text{)}}_{\text{3}}{\text{(H}}_{\text{2}}{\text{O) Cl}}_2\right]}^{+}$ when all the NH₃ groups remain in plane needs to be determined.

Concept introduction:

Isomers are molecules that have same chemical formula and different chemical structures. In other words, the molecules contain same number of atoms, but their arrangements are different.