Chapter 20, Problem 100IP

(a)

Interpretation Introduction

Interpretation: The wavelength of the given photon is to be calculated. The hybridization of $\text{N}$ atom in ${\text{NCS}}^{\text{-}}$ ligand, weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_6{}^{3-}$ will undergo substitution reaction, weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_{\text{2}}{\left(\text{en}\right)}_{\text{2}}{}^{\text{+}}$ will exhibit geometric isomerism and weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_{\text{2}}{\left(\text{en}\right)}_{\text{2}}{}^{\text{+}}$ will exhibit optical isomerism is to be stated.

Concept introduction: Organic compounds which have similar chemical formula but different structures, i.e., the atoms are in a different spatial arrangement, they are known as structural isomers. Cis and Trans isomers are also structural or geometrical isomers. Optical isomers are those which have non super imposable mirror images.

To determine: The wavelength of the given photon.

(b)

Interpretation Introduction

Interpretation: The wavelength of the given photon is to be calculated. The hybridization of $\text{N}$ atom in ${\text{NCS}}^{\text{-}}$ ligand, weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_6{}^{3-}$ will undergo substitution reaction, weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_{\text{2}}{\left(\text{en}\right)}_{\text{2}}{}^{\text{+}}$ will exhibit geometric isomerism and weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_{\text{2}}{\left(\text{en}\right)}_{\text{2}}{}^{\text{+}}$ will exhibit optical isomerism is to be stated.

Concept introduction: Organic compounds which have similar chemical formula but different structures, i.e., the atoms are in a different spatial arrangement, they are known as structural isomers. Cis and Trans isomers are also structural or geometrical isomers. Optical isomers are those which have non super imposable mirror images.

To determine: The hybridization of $\text{N}$ atom in ${\text{NCS}}^{\text{-}}$ ligand, weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_6{}^{3-}$ will undergo substitution reaction, weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_{\text{2}}{\left(\text{en}\right)}_{\text{2}}{}^{\text{+}}$ will exhibit geometric isomerism and weather $\text{Cr}{\left({\text{NCS}}^{\text{-}}\right)}_{\text{2}}{\left(\text{en}\right)}_{\text{2}}{}^{\text{+}}$ will exhibit optical isomerism.