A Fluxional Cu8 H6 Cluster Supported by Bis(diphenylphosphino)methane and its Facile Reaction with CO2.
Chemistry
; 23(40): 9457-9461, 2017 Jul 18.
Article
em En
| MEDLINE
| ID: mdl-28488381
ABSTRACT
A copper hydride cluster [Cu8 (µ-H)6 (µ-dppm)5 ](PF6 )2 (dppm=bis(diphenylphosphino)methane) was prepared from reaction of [CuH(PPh3 )]6 with dppm in the presence of [Cu(CH3 CN)4 ]PF6 and exhibited fluxional behaviors in solution where the hydrides and the phosphines are scrambling around the trans-bicapped octahedral Cu8 framework. The Cu8 H6 complex showed facile reactivity with CO2 (1â
atm, RT) to afford a tricopper complex, [Cu3 (µ-H)(µ-O2 CH)(µ-dppm)3 ]PF6 , which could be developed to unprecedented hydrosilylation of CO2 catalyzed by multinuclear CuH species under mild conditions.
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MEDLINE
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En
Ano de publicação:
2017
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Article