Synthesis and characterization of an amidinate-stabilized siladithiocarboxylate and its germanium(II) complex

Shu Hua Zhang; Hong Wei Xi; Kok Hwa Lim; Cheuk Wai So

doi:10.1021/om200285u

Synthesis and characterization of an amidinate-stabilized siladithiocarboxylate and its germanium(II) complex

Shu Hua Zhang, Hong Wei Xi, Kok Hwa Lim, Cheuk Wai So^*

^*Corresponding author for this work

Nanyang Technological University

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

15 Citations (Scopus)

Abstract

The synthesis and characterization of the amidinate-stabilized potassium siladithiocarboxylate [{LSi(S)₂}K(THF)₂]₂ (2, L = PhC(NBu^t)₂) are described. Compound 2 was synthesized by the reaction of [LSiCl] (1) with two equivalents of elemental sulfur and KC₈ in THF. X-ray crystallography and DFT calculations show that the Si-S bond lengths in 2 are intermediate between the Si=S double and Si-S single bond lengths. There is a weak electronic delocalization along the "Si(S)₂" skeleton. Compound 2 underwent a salt elimination reaction with GeCl₂̇dioxane to form [{LSi(S)₂} ₂Ge:] (3), which contains two "LSi(S)₂ ^-" moieties chelating to the germanium(II) atom in an anisobidentate manner.

Original language	English
Pages (from-to)	3686-3689
Number of pages	4
Journal	Organometallics
Volume	30
Issue number	13
DOIs	https://doi.org/10.1021/om200285u
Publication status	Published - Jul 11 2011
Externally published	Yes

ASJC Scopus Subject Areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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title = "Synthesis and characterization of an amidinate-stabilized siladithiocarboxylate and its germanium(II) complex",

abstract = "The synthesis and characterization of the amidinate-stabilized potassium siladithiocarboxylate [{LSi(S)2}K(THF)2]2 (2, L = PhC(NBut)2) are described. Compound 2 was synthesized by the reaction of [LSiCl] (1) with two equivalents of elemental sulfur and KC8 in THF. X-ray crystallography and DFT calculations show that the Si-S bond lengths in 2 are intermediate between the Si=S double and Si-S single bond lengths. There is a weak electronic delocalization along the {"}Si(S)2{"} skeleton. Compound 2 underwent a salt elimination reaction with GeCl{\.2}dioxane to form [{LSi(S)2} 2Ge:] (3), which contains two {"}LSi(S)2 -{"} moieties chelating to the germanium(II) atom in an anisobidentate manner.",

author = "Zhang, {Shu Hua} and Xi, {Hong Wei} and Lim, {Kok Hwa} and So, {Cheuk Wai}",

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doi = "10.1021/om200285u",

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journal = "Organometallics",

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T1 - Synthesis and characterization of an amidinate-stabilized siladithiocarboxylate and its germanium(II) complex

AU - Zhang, Shu Hua

AU - Xi, Hong Wei

AU - Lim, Kok Hwa

AU - So, Cheuk Wai

PY - 2011/7/11

Y1 - 2011/7/11

N2 - The synthesis and characterization of the amidinate-stabilized potassium siladithiocarboxylate [{LSi(S)2}K(THF)2]2 (2, L = PhC(NBut)2) are described. Compound 2 was synthesized by the reaction of [LSiCl] (1) with two equivalents of elemental sulfur and KC8 in THF. X-ray crystallography and DFT calculations show that the Si-S bond lengths in 2 are intermediate between the Si=S double and Si-S single bond lengths. There is a weak electronic delocalization along the "Si(S)2" skeleton. Compound 2 underwent a salt elimination reaction with GeCl2̇dioxane to form [{LSi(S)2} 2Ge:] (3), which contains two "LSi(S)2 -" moieties chelating to the germanium(II) atom in an anisobidentate manner.

AB - The synthesis and characterization of the amidinate-stabilized potassium siladithiocarboxylate [{LSi(S)2}K(THF)2]2 (2, L = PhC(NBut)2) are described. Compound 2 was synthesized by the reaction of [LSiCl] (1) with two equivalents of elemental sulfur and KC8 in THF. X-ray crystallography and DFT calculations show that the Si-S bond lengths in 2 are intermediate between the Si=S double and Si-S single bond lengths. There is a weak electronic delocalization along the "Si(S)2" skeleton. Compound 2 underwent a salt elimination reaction with GeCl2̇dioxane to form [{LSi(S)2} 2Ge:] (3), which contains two "LSi(S)2 -" moieties chelating to the germanium(II) atom in an anisobidentate manner.

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Synthesis and characterization of an amidinate-stabilized siladithiocarboxylate and its germanium(II) complex

Abstract

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