Chapter 21, Problem 72AE

The compound cisplatin, Pt(NH₃)₂Cl₂, has been studied extensively as an antitumor agent. The reaction for the synthesis of cisplatin is:

${\text{K}}_2{\text{PtCl}}_4\left(aq\right)+2{\text{NH}}_3\left(aq\right)\to \text{Pt}{\left({\text{NH}}_3\right)}_2{\text{Cl}}_2\left(s\right)+2\text{KCl}\left(aq\right)$

Write the electron configuration for platinum ion in cisplatin. Most d⁸ transition metal ions exhibit square planar geometry. With this and the name in mind, draw the structure of cisplatin.