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Co6H8(P iPr3)6: A Cobalt Octahedron with Face-Capping Hydrides.
- Source :
-
Angewandte Chemie International Edition . 12/19/2016, Vol. 55 Issue 51, p15821-15825. 5p. - Publication Year :
- 2016
-
Abstract
- A square-planar Co4 amide cluster, Co4{N(SiMe3)2}4 ( 2), and an octahedral Co6 hydride cluster, Co6H8(P iPr3)6 ( 4), were obtained from metathesis-type amide to hydride exchange reactions of a CoII amide complex with pinacolborane (HBpin) in the absence/presence of P iPr3. The crystal structure of 4 revealed face-capping hydrides on each triangular [Co3] face, while the formal CoII2CoI4 oxidation state of 4 indicated a reduction of the cobalt centers during the assembly process. Cluster 4 catalyzes the hydrosilylation of 2-cyclohexen-1-one favoring the conjugate reduction. Generation of the catalytically reactive Co cluster species was indicated by a trapping experiment with a chiral chelating agent. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COBALT
*HYDRIDES
*METATHESIS reactions
*AMIDES
*CRYSTAL structure
*CYCLOHEXENE
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 55
- Issue :
- 51
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 120155600
- Full Text :
- https://doi.org/10.1002/anie.201608262