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 T-1 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 T-1 of H-2(mu-H-2)Os-3(CO)(11), while insights into the terminal/bridging hydride exchange have been gained from H-1 variable-temperature: NMR.
An NMR study of H(μ-H)Os3(CO)11
AIME, Silvio;DASTRU', Walter;GOBETTO, Roberto;VIALE, Alessandra
2000-01-01
Abstract
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 T-1 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 T-1 of H-2(mu-H-2)Os-3(CO)(11), while insights into the terminal/bridging hydride exchange have been gained from H-1 variable-temperature: NMR.File in questo prodotto:
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