Chapter 18, Problem 18.65AP

Interpretation Introduction

(a)

Interpretation:

The oxidation state of the cobalt in the cyanocobalamin complex is to be stated.

Concept introduction:

In cyanocobalamin complex, the cobalt metal atom is coordinated to the four nitrogen atoms of the corrin ring, fifth positon is occupied by dimethylbenzimidazole and sixth position is occupied by cyanide group The oxidation state is the tendency of the molecule to donate its valence electrons. More the tendency to donate electrons, higher is the oxidation state.

Interpretation Introduction

(b)

Interpretation:

The $d^n$ count of the cobalt in the cyano-cobalamin complex is to be stated.

Concept introduction:

In cyanocobalamin complex, the cobalt metal atom is coordinated to the four nitrogen atoms of the corrin ring, fifth positon is occupied by dimethylbenzimidazole and sixth position is occupied by cyanide group. The $d^n$ is the number of electrons present in the $d$ orbital of the complex

Interpretation Introduction

(c)

Interpretation:

The total electron count around coabalt in the cyanocobalamin complex is to be stated.

Concept introduction:

In cyanocobalamin complex, the cobalt metal atom is coordinated to the four nitrogen atoms of the corrin ring, fifth positon is occupied by dimethylbenzimidazole and sixth position is occupied by cyanide group. The total electron count is the total number of electrons present around the central atom.