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NMR STUDIES OF FLUXIONAL RHENIUM CARBONYLCOMPLEXES OF 2,6-DIACETYLPYRIDINE (DAP),fac-[ReX ( CO )a(D AP)]

Orrell, KG, Osborne, AG, Sik, V and Webba da Silva, Mateus (1995) NMR STUDIES OF FLUXIONAL RHENIUM CARBONYLCOMPLEXES OF 2,6-DIACETYLPYRIDINE (DAP),fac-[ReX ( CO )a(D AP)]. Polyhedron, 14 . 2797-2802,. [Journal article]

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Abstract

2,6-Diacetylpyridine (DAP) reacted with pentacarbonylhalogeno rhenium(l)complexes under mild conditions to form stable octahedral complexes of the type fac-[ReX(CO)3(DAP)] (X = CI, Br or I) in which the DAP acts as a bidentate chelate ligand.In solution these complexes are fluxional with DAP oscillating between equivalent bidentatebonding modes by a twist mechanism involving the breaking/making of two Re--O bonds.Rates and activation energies of these fluxions have been investigated by NMR methods. 2-Acetylpyridine (AP) reacts with bromopentacarbonylrhenium(I) to form the non-fluxionalchelate complex fac-[ReBr(CO)3(AP)].

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences > School of Pharmacy and Pharmaceutical Science
Faculty of Life and Health Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute > Genomic Medicine > Transcriptional Regulation & Epigenetics
Biomedical Sciences Research Institute > Genomic Medicine
Biomedical Sciences Research Institute
ID Code:18309
Deposited By: Dr Mateus Webba da Silva
Deposited On:03 May 2011 08:51
Last Modified:09 Dec 2015 10:56

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