# Mechanism of tautomerisation in AgCN and AgNC??

1. Dec 5, 2015

### Ansuman

Can anyone give a detailed mechanism for the tautomerization in AgCN and AgNC and is the same possible in KCN and KNC ??

2. Dec 5, 2015

### Staff: Mentor

I don't know what you mean by "detailed mechanism" here, but I can't tell you that this is not a tautomerization, simply an isomerization.

3. Dec 5, 2015

### Ansuman

Dynamic equilibrium existing between two constitutional isomers is TAUTOMERIZATION( a specific type of isomerization), right, thats what is happening here, but can a mechanism be presented??

4. Dec 5, 2015

### Staff: Mentor

Apologies, I was wrong. I thought that tautomerization only applied when H was being exchanged, but looking in the IUPAC Gold Book, it is more general than that. That said, I always heard it referred to as isomerization in the case of KCN, and even HCN with which I am more familiar.

Apart from writing KCN$\rightleftharpoons$KNC, I don't know of anything more complicated. I always understood it as being due to the excitation of the bending mode.