Sign in to follow this  

effect of ligands on metal NMR shift

Recommended Posts

transition metal complexes, effect of ligands on metal NMR shift... complexes of formula M(amine)2X2, they write, that the difference between cis and trans isomers chemical shift, for dipiridine isomers (amine=piridine) is greater for diiodo than for dichloro complexes... and say if ligands amine and X are far from each other in the trans influence series, this difference chemical shift cis-trans is bigger... but why? wow it influence metal chemical shift? trans influenceof iodine is much larger than chlorine, so the Pt-N bond trans to iodine will be longer than when its trans to chlorine. but how it affects shielding of nmr signal? i would say its just withdrawal of electrons, why order in trans series affects that?

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this