Rhodium complexes containing O-bonded NHxMe2-xCHO (x=0, 1, 2): X-ray structure of [Rh(PPh3)(3)(OCHNHMe)]CIO4

Authors
Sabounchei, JS Heaton, BT Jacob, C Jones, CL Olsson, A Smith, AK Kloo, LA
Citation
Js. Sabounchei et al., Rhodium complexes containing O-bonded NHxMe2-xCHO (x=0, 1, 2): X-ray structure of [Rh(PPh3)(3)(OCHNHMe)]CIO4, HELV CHIM A, 84(10), 2001, pp. 3075-3083
Citations number
22
Categorie Soggetti
Chemistry & Analysis",Chemistry
Journal title
HELVETICA CHIMICA ACTA
ISSN journal
0018019X → ACNP
Volume
84
Issue
10
Year of publication
2001
Pages
3075 - 3083
Database
ISI
SICI code
0018-019X(2001)84:10<3075:RCCON(>2.0.ZU;2-0
Abstract
Displacement of norbornadiene (nbd; bicyclo[2.2.1]hepta-2,5-diene) from [Rh (PPh3)(2)(nbd)]ClO4 by hydrogenation in the presence of PPh3 and formamide or Me-substituted derivatives, results in the formation of O-bonded formami de complexes [Rh(PPh3)(3)(OCHNHxMe2-x)]ClO4 (x=0, 1, 2) rather than N-bonde d derivatives. These have been characterised by spectroscopic measurements and, in the case of [Rh(PPh3)(3)(OCHNHMe)]ClO4, by X-ray crystallography. A ll undergo oxidative addition with H-2, and the rates of ligand exchange in the Rh-I and Rh-III complexes have been determined by magnetisation-transf er measurements.