Chapter 24.5, Problem 1.3ACP

Interpretation Introduction

Interpretation:

The molecular geometry around the phosphorous atom in a phosphorothioate group has to be identified.

Concept introduction: In phosphorothioate group phosphrous atom bonded with surrounding atoms oxygen and sulphur as shown below.

In the diagram shows $\text{P}$ at the centre with no lone pair of electron which are bonded with oxygen and sulphur.

Tetrahedral geometry: A tetrahedral has a central atom which is surrounded by four other atoms. In tetrahedral geometry the bond angle is $\text{109}°\text{.5'}$.