9th Edition
Steven S. Zumdahl
ISBN: 9781133611097




9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

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

K 2 PtCl 4 ( a q ) + 2 NH 3 ( a q ) Pt ( NH 3 ) 2 Cl 2 ( s ) + 2 KCl ( a q )

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.

Interpretation Introduction

Interpretation: The electronic configuration for platinum ion in cis-platin is to be stated. Structure of cis platin is to be drawn.

Concept introduction: Electronic configuration is used to describe the distribution of the electrons in the orbitals of an atom. Structure of an atom can be defined by its electronic configuration. It can also be used to denote an atom which is ionized to a cation or anion formed by the loss or gain of electrons in their respective orbitals.

To determine: The electronic configuration for platinum ion in cis platin and the structure of cis platin.



The formula of cis-platin is Pt(NH3)2Cl2 . Two ammonia ligands are attached to platinum and its charge is zero since ammonia is neutral but each chloride ion has 1 charge. Two chloride ions are attached to platinum, therefore Pt must have +2 charges.

Atomic number of Pt is 78 , therefore its electronic configuration is [Xe]4f145d96s1

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