Affiliations: Università di Torino, Dipartimento di Chimica I.F.M., V. P. Giuria 7, 10125 Torino, Italy
Department of Chemical Sciences, University of Catania, V. le A. Doria 6, 95125 Catania, Italy
Department of Physical Chemistry, University of Debrecen, 4010 Debrecen, Hungary
Department of Inorganic and Analytical Chemistry, University of Debrecen, 4010 Debrecen, Hungary
CNR Institute of Biostructures and Bioimaging, V. le A. Doria, 95125 Catania, Italy
Dipto. di Scienza degli Alimenti, Universita' di Napoli Federico II, Via Universita' 100, 80055 Portici, Napoli, Italy
Istituto per lo Studio, Sostanze Naturali Interesse A./C.F., CNR, v.le A. Doria 6, Catania, Italy
Dipartimento di Scienze Chimiche, Universita' di Catania, V.le A. Doria 8, 95125 Catania, Italy
Facoltà di Scienze Ambientali, Seconda Università di Napoli, via Arena, 22, Caserta, Italy
Biocrystallography Research Centre, CNR, Univ. Federico II di Napoli, via Mezzocannone 4, 1-80134 Naples, Italy
References: Not available.
An NMR study of H(μ-H)Os3(CO)11
The title compound appears to be present in solution as one major (98%) and two minor (ca. 1% each) isomers. All three isomers contain one bridging and one terminal hydride ligand. However, they differ in the location of the terminal hydride. Proton T1 measurements at variable temperature have allowed the determination of H(T)-H(B) distances in each isomer. An estimation of the relative 'hydridicity' of bridging and terminal hydrides has been gained by measuring the T1 of 2H(μ-2H)Os3(CO)11, while insights into the terminal/bridging hydride exchange have been gained from 1H variable-temperature NMR.
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