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Issue 10, 2019
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Isolation of two bis(silyl)nickel complexes with Si–Si bond formation in a single-crystal-to-single-crystal fashion

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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 a 2 : 1 ratio. Complex 6 is the first example of mononuclear silyl nickel complexes containing a Si–Si single bond formed in situ. Interestingly, framework 6 exhibits reversible single-crystal-to-single-crystal transformations upon the removal and rebinding of the coordinating PEt3 molecule, which give rise to a PEt3-free complex [{1,2-C6H4(SiMe2)(SiH)}2Ni(depe)] (6′), concomitant with the alteration of the coordination geometry of central metal atoms.

Graphical abstract: Isolation of two bis(silyl)nickel complexes with Si–Si bond formation in a single-crystal-to-single-crystal fashion

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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., 2019,48, 3433-3439

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    Isolation of two bis(silyl)nickel complexes with Si–Si bond formation in a single-crystal-to-single-crystal fashion

    S. Zhang, J. Li, S. Zhao, S. Wang, M. Lu, Y. Li and W. Huang, Dalton Trans., 2019, 48, 3433
    DOI: 10.1039/C8DT04951C

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