New eta(5)- and mu-(O)-Rh(I) phenoxide complexes: synthesis, characterisation and unconventional reactivity of eta(5)-complexes towards carbon dioxide

Authors
Aresta, M Dibenedetto, A Pascale, M Quaranta, E Tommasi, I
Citation
M. Aresta et al., New eta(5)- and mu-(O)-Rh(I) phenoxide complexes: synthesis, characterisation and unconventional reactivity of eta(5)-complexes towards carbon dioxide, J ORGMET CH, 605(2), 2000, pp. 143-150
Citations number
58
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
605
Issue
2
Year of publication
2000
Pages
143 - 150
Database
ISI
SICI code
0022-328X(20000707)605:2<143:NEAMPC>2.0.ZU;2-P
Abstract
The synthesis, analytical and spectroscopic characterisation, and reactivit y of three new Rh(I)-phenoxide complexes of formula Rh-2(mu-OPh)(2)(C2H4)(4 ) (1), Rh(C2H4)(2)(eta(5)-OPh) (2) and Rh(diphos)(eta(5)-OPh) (4) [diphos = 1,2-bis(diphenylphosphino)ethane] are reported. Both the eta(5)- and mu-(O ) modes of bonding have been found. The eta(5)-complexes are quite air-sens itive. The reactivity towards carbon dioxide is described and the formation of an emicarbonate is reported with the O-bonded phenoxide. A ring carboxy lation occurs with eta(5)-complexes. (C) 2000 Published by Elsevier Science S.A. All rights reserved.