# Question 86036

Dec 5, 2016

""^(-)S-C-=N# versus $S = C = {N}^{-}$

#### Explanation:

The left hand structure is the one that is most usually written. In the right hand structure, the formal negative charge lies on the most electronegative atom. It is an ambidentate nucleophile which can react at either the sulfur or the nitrogen terminus.

What is the structure of the ion in terms of $\text{VSEPR theory}$?