Jump to main content
Jump to site search

Volume 220, 2019

Direct experimental evaluation of ligand-induced backbonding in nickel metallacyclic complexes

Author affiliations

Abstract

The details of ligand-induced backbonding in nickel diphosphine π complexes are explored using nickel L-edge (3d←2p) X-ray absorption spectroscopy as a means of quantifying the degree of backbonding derived from direct Ni 3d donation into the π ligand. It is observed that backbonding into weakly π acidic ligands such as alkenes and arenes is dominated by contributions from the diphosphine ligand via σ-donation, leading to activated metallacycles with a Ni(0) d10 metal centre. With more strongly π acidic ligands, however, metal contributions to backbonding increase substantially leading to a more electron-deficient metal centre that is best described as having a Ni(I) spectroscopic oxidation state.

Graphical abstract: Direct experimental evaluation of ligand-induced backbonding in nickel metallacyclic complexes

Associated articles

Supplementary files

Article information


Submitted
22 Apr 2019
Accepted
05 Jun 2019
First published
05 Jun 2019

Faraday Discuss., 2019,220, 133-143
Article type
Paper
Author version available

Direct experimental evaluation of ligand-induced backbonding in nickel metallacyclic complexes

W. He and P. Kennepohl, Faraday Discuss., 2019, 220, 133 DOI: 10.1039/C9FD00041K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements