Chapter 4, Problem 4.39P

Determine the point groups of the following molecules:
a. ${\text{F}}_{\text{3}}{\text{SCCF}}_{\text{3}}$ , with a triple $\text{S}—\text{C}$ bond

b. ${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}{\text{F}}_{\text{2}}{\text{Cl}}_{\text{2}}{\text{Br}}_{\text{2}}$ , a derivative of cyclohexane, in a chair conformation

c. ${\text{M}}_{\text{2}}{\text{Cl}}_{\text{6}}{\text{Br}}_{\text{4}}$ , where M is a metal atom

d. $\text{M}{\left({\text{NH}}_{\text{2}}{\text{C}}_{\text{2}}{\text{H}}_{\text{4}}{\text{PH}}_{\text{2}}\right)}_{\text{3}}$ , considering the ${\text{NH}}_{\text{2}}{\text{C}}_{\text{2}}{\text{H}}_{\text{4}}{\text{PH}}_{\text{2}}$ rings as planar

e. ${\text{PCl}}_{\text{2}}{\text{F}}_{\text{3}}$ (the most likely isomer)