Reactivity of an amidinato silylene and germylene toward germanium(ii), tin(ii) and lead(ii) halides

Yu Liang Shan; Bi Xiang Leong; Hong Wei Xi; Rakesh Ganguly; Yongxin Li; Kok Hwa Lim; Cheuk Wai So

doi:10.1039/c7dt00051k

Reactivity of an amidinato silylene and germylene toward germanium(ii), tin(ii) and lead(ii) halides

Yu Liang Shan, Bi Xiang Leong, Hong Wei Xi, Rakesh Ganguly, Yongxin Li, Kok Hwa Lim, Cheuk Wai So^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The coordination chemistry of an amidinato silylene and germylene toward group 14 element(ii) halides is described. The reaction of the amidinato silicon(ii) amide [LSiN(SiMe₃)₂] (1, L = PhC(NtBu)₂) with SnCl₂ and PbBr₂ afforded the amidinato silylene-dichlorostannylene and-dibromoplumbylene adducts [L{(Me₃Si)₂N}SiEX₂] (E = Sn, X = Cl (2); E = Pb, X = Br (3)), respectively, in which there is a lone pair of electrons on the Sn(ii) and Pb(ii) atoms. X-ray crystallography, NMR spectroscopy and theoretical studies show conclusively that the Si(ii)-E(ii) bonds are donor-acceptor interactions. Similar electronic structures were found in the amidinato germylene-dichlorogermylene and-dichlorostannylene adducts [L{(Me₃Si)₂N}GeECl₂] (E = Ge (5), Sn (6)), which were prepared by treatment of the amidinato germanium(ii) amide [LGeN(SiMe₃)₂] (4) with GeCl₂·dioxane and SnCl₂, respectively.

Original language	English
Pages (from-to)	3642-3648
Number of pages	7
Journal	Dalton Transactions
Volume	46
Issue number	11
DOIs	https://doi.org/10.1039/c7dt00051k
Publication status	Published - 2017
Externally published	Yes

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© The Royal Society of Chemistry.

ASJC Scopus Subject Areas

Inorganic Chemistry

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title = "Reactivity of an amidinato silylene and germylene toward germanium(ii), tin(ii) and lead(ii) halides",

abstract = "The coordination chemistry of an amidinato silylene and germylene toward group 14 element(ii) halides is described. The reaction of the amidinato silicon(ii) amide [LSiN(SiMe3)2] (1, L = PhC(NtBu)2) with SnCl2 and PbBr2 afforded the amidinato silylene-dichlorostannylene and-dibromoplumbylene adducts [L{(Me3Si)2N}SiEX2] (E = Sn, X = Cl (2); E = Pb, X = Br (3)), respectively, in which there is a lone pair of electrons on the Sn(ii) and Pb(ii) atoms. X-ray crystallography, NMR spectroscopy and theoretical studies show conclusively that the Si(ii)-E(ii) bonds are donor-acceptor interactions. Similar electronic structures were found in the amidinato germylene-dichlorogermylene and-dichlorostannylene adducts [L{(Me3Si)2N}GeECl2] (E = Ge (5), Sn (6)), which were prepared by treatment of the amidinato germanium(ii) amide [LGeN(SiMe3)2] (4) with GeCl2·dioxane and SnCl2, respectively.",

author = "Shan, {Yu Liang} and Leong, {Bi Xiang} and Xi, {Hong Wei} and Rakesh Ganguly and Yongxin Li and Lim, {Kok Hwa} and So, {Cheuk Wai}",

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year = "2017",

doi = "10.1039/c7dt00051k",

language = "English",

volume = "46",

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T1 - Reactivity of an amidinato silylene and germylene toward germanium(ii), tin(ii) and lead(ii) halides

AU - Shan, Yu Liang

AU - Leong, Bi Xiang

AU - Xi, Hong Wei

AU - Ganguly, Rakesh

AU - Li, Yongxin

AU - Lim, Kok Hwa

AU - So, Cheuk Wai

PY - 2017

Y1 - 2017

N2 - The coordination chemistry of an amidinato silylene and germylene toward group 14 element(ii) halides is described. The reaction of the amidinato silicon(ii) amide [LSiN(SiMe3)2] (1, L = PhC(NtBu)2) with SnCl2 and PbBr2 afforded the amidinato silylene-dichlorostannylene and-dibromoplumbylene adducts [L{(Me3Si)2N}SiEX2] (E = Sn, X = Cl (2); E = Pb, X = Br (3)), respectively, in which there is a lone pair of electrons on the Sn(ii) and Pb(ii) atoms. X-ray crystallography, NMR spectroscopy and theoretical studies show conclusively that the Si(ii)-E(ii) bonds are donor-acceptor interactions. Similar electronic structures were found in the amidinato germylene-dichlorogermylene and-dichlorostannylene adducts [L{(Me3Si)2N}GeECl2] (E = Ge (5), Sn (6)), which were prepared by treatment of the amidinato germanium(ii) amide [LGeN(SiMe3)2] (4) with GeCl2·dioxane and SnCl2, respectively.

AB - The coordination chemistry of an amidinato silylene and germylene toward group 14 element(ii) halides is described. The reaction of the amidinato silicon(ii) amide [LSiN(SiMe3)2] (1, L = PhC(NtBu)2) with SnCl2 and PbBr2 afforded the amidinato silylene-dichlorostannylene and-dibromoplumbylene adducts [L{(Me3Si)2N}SiEX2] (E = Sn, X = Cl (2); E = Pb, X = Br (3)), respectively, in which there is a lone pair of electrons on the Sn(ii) and Pb(ii) atoms. X-ray crystallography, NMR spectroscopy and theoretical studies show conclusively that the Si(ii)-E(ii) bonds are donor-acceptor interactions. Similar electronic structures were found in the amidinato germylene-dichlorogermylene and-dichlorostannylene adducts [L{(Me3Si)2N}GeECl2] (E = Ge (5), Sn (6)), which were prepared by treatment of the amidinato germanium(ii) amide [LGeN(SiMe3)2] (4) with GeCl2·dioxane and SnCl2, respectively.

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Reactivity of an amidinato silylene and germylene toward germanium(ii), tin(ii) and lead(ii) halides

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