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Isolation of two Bis(silyl)nickel Complexes with Si–Si Bond Formation in Single-Crystal-to-Single-Crystal Fashion

Abstract

A unique penta-coordinate nickel complex [{1,2-C6H4(SiMe2)(SiH)}2Ni(PEt3)(depe)] (6) that generates two new Si-Si single bonds has been prepared exclusively by the reaction of a chelating silyl hydride 1-(dimethylsilyl)-2-silylbenzene (4) and Ni(depe)(PEt3)2 (depe=Et2PCH2CH2PEt2) in 2:1 ratio. Complex 6 is the first example of mononuclear silyl nickel complexes containing Si–Si single bond formed in situ. Interestingly, framework 6 exhibits reversible single-crystal-to-single-crystal transformations upon removal and rebinding of the coordinating PEt3 molecule, which give rise to PEt3 free complex [{1, 2-C6H4(SiMe2)(SiH)}2Ni(depe)] (6’), concomitant with alteration of coordination geometry of central metal atom.

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Publication details

The article was received on 17 Dec 2018, accepted on 10 Feb 2019 and first published on 13 Feb 2019


Article type: Paper
DOI: 10.1039/C8DT04951C
Citation: Dalton Trans., 2019, Accepted Manuscript

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    Isolation of two Bis(silyl)nickel Complexes with Si–Si Bond Formation in Single-Crystal-to-Single-Crystal Fashion

    S. Zhang, J. Li, S. Zhao, S. Wang, M. Lu, Y. Li and W. Huang, Dalton Trans., 2019, Accepted Manuscript , DOI: 10.1039/C8DT04951C

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