25. The compound cisplatin, Pt(NH₃)₂Cl₂, has been studied extensively as an antitumor agent. The reaction for the synthesis of cisplatin is:
K₂PtCl₄_(aq) + 2 NH₃_(aq) → Pt(NH₃)₂Cl₂_(s) + 2 KCl_(aq)
Write the electron configuration for platinum ion in cisplatin. Most d⁸ transition metal ions exhibit square planar geometry. Draw the structure of cisplatin and give chemical names for cisplatin based on either Stock system or Ewing-Bassett system. (6%)