Chapter 2, Problem 27P

1. Write down the ions that are present in the compound $\left[{\text{PtCl}}_{\text{4}}\right]\left[{\text{PtCl}}_{\text{3}}{\text{F}}_{\text{3}}\right]$. What shape do you expect each ion to adopt? In theory, does either ion possess stereoisomers?

2. Use the VSEPR model to rationalize why ${\text{BCl}}_{\text{3}}$ and ${\text{NCl}}_{\text{3}}$ do not adopt similar structures. Is either molecule expected to be polar? Rationalize your answer.