Title

Carbon-13 Nuclear Magnetic Resonance Spectroscopy of Cobalt(III) Complexes with Flexible Tetraamine Ligands

Document Type

Article

Publication Date

1982

Publication Source

Inorganica Chimica Acta

Abstract

The details of a systematic carbon 13 nuclear magnetic study of cobalt(III) complexes with the tetraamine ligands 1,8-diamino-3,6-diazaoctane (2,2,2-tet), 1,9-diamino-3,6-diazanonane (2,2,3-tet), 1,9-diamino-3,7-diazanonane (2,3,2-tet) and 1,10-diamino-4,7-diazadecane (3,2,3-tet) are presented. Carbon 13 NMR was found to be an extremely sensitive probe of the stereochemistry of this series of diamagnetic ‘Werner’ complexes. Our interpretation is based upon two parameters, the donation of electron density to the metal and the steric perturbation required for coordination. The stereochemistry of uns-cis(Co(2,2,3-tet)Val)++ is assigned based upon the carbon 13 NMR spectrum of the complex.

Inclusive pages

141-148

ISBN/ISSN

0020-1693

Publisher

Elsevier

Volume

62

Peer Reviewed

yes