Synthesis of novel metal-germavinylidene complexes from bisgermavinylidene

Wing Por Leung; Cheuk Wai So; Kwok Wai Kan; Hoi Shan Chan; Thomas C.W. Mak

doi:10.1021/om0503085

Synthesis of novel metal-germavinylidene complexes from bisgermavinylidene

Wing Por Leung^*, Cheuk Wai So, Kwok Wai Kan, Hoi Shan Chan, Thomas C.W. Mak

^*Corresponding author for this work

Chinese University of Hong Kong

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

33 Citations (Scopus)

Abstract

The bisgermavinylidene [(Me₃SiN=PPh₂) ₂C=Ge→Ge=C(PPh₂=NSiMe₃)₂] (1) has been used as the source of unstable germavinylidene for the synthesis of a series of metal-germavinylidene complexes. Treatment of 1 with M(PPh ₃)₄ (M = Ni, Pd) afforded the metal-germavinylidene complexes [{(Me₃SiN=PPh₂)₂C=Ge} ₂Ni(PPh₃)₂] (2) and [{(Me₃SiN= PPh₂)₂C= Ge-μ₂}Pd(PPh₃)] ₂ (3), respectively. The germavinylidene moiety from 1 acts as a two-electron terminal and bridging ligand, respectively. Similar reaction of 1 with AgCl or Aul gave [(Me₃-SiN=PPh₂)₂C=Ge(Ag) (Cl)]₂ (5) and [(Me₃SiN=PPh₂) ₂C=Ge(Au)(I)]₂ (6), respectively. The result has shown that the germavinylidene moiety from 1 behaves as a Lewis base and undergoes an insertion reaction into the metal-halogen bond. X-ray structures of 2, 3, 5, and 6 have been determined.

Original language	English
Pages (from-to)	5033-5037
Number of pages	5
Journal	Organometallics
Volume	24
Issue number	21
DOIs	https://doi.org/10.1021/om0503085
Publication status	Published - Oct 10 2005
Externally published	Yes

ASJC Scopus Subject Areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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title = "Synthesis of novel metal-germavinylidene complexes from bisgermavinylidene",

abstract = "The bisgermavinylidene [(Me3SiN=PPh2) 2C=Ge→Ge=C(PPh2=NSiMe3)2] (1) has been used as the source of unstable germavinylidene for the synthesis of a series of metal-germavinylidene complexes. Treatment of 1 with M(PPh 3)4 (M = Ni, Pd) afforded the metal-germavinylidene complexes [{(Me3SiN=PPh2)2C=Ge} 2Ni(PPh3)2] (2) and [{(Me3SiN= PPh2)2C= Ge-μ2}Pd(PPh3)] 2 (3), respectively. The germavinylidene moiety from 1 acts as a two-electron terminal and bridging ligand, respectively. Similar reaction of 1 with AgCl or Aul gave [(Me3-SiN=PPh2)2C=Ge(Ag) (Cl)]2 (5) and [(Me3SiN=PPh2) 2C=Ge(Au)(I)]2 (6), respectively. The result has shown that the germavinylidene moiety from 1 behaves as a Lewis base and undergoes an insertion reaction into the metal-halogen bond. X-ray structures of 2, 3, 5, and 6 have been determined.",

author = "Leung, {Wing Por} and So, {Cheuk Wai} and Kan, {Kwok Wai} and Chan, {Hoi Shan} and Mak, {Thomas C.W.}",

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T1 - Synthesis of novel metal-germavinylidene complexes from bisgermavinylidene

AU - Leung, Wing Por

AU - So, Cheuk Wai

AU - Kan, Kwok Wai

AU - Chan, Hoi Shan

AU - Mak, Thomas C.W.

PY - 2005/10/10

Y1 - 2005/10/10

N2 - The bisgermavinylidene [(Me3SiN=PPh2) 2C=Ge→Ge=C(PPh2=NSiMe3)2] (1) has been used as the source of unstable germavinylidene for the synthesis of a series of metal-germavinylidene complexes. Treatment of 1 with M(PPh 3)4 (M = Ni, Pd) afforded the metal-germavinylidene complexes [{(Me3SiN=PPh2)2C=Ge} 2Ni(PPh3)2] (2) and [{(Me3SiN= PPh2)2C= Ge-μ2}Pd(PPh3)] 2 (3), respectively. The germavinylidene moiety from 1 acts as a two-electron terminal and bridging ligand, respectively. Similar reaction of 1 with AgCl or Aul gave [(Me3-SiN=PPh2)2C=Ge(Ag) (Cl)]2 (5) and [(Me3SiN=PPh2) 2C=Ge(Au)(I)]2 (6), respectively. The result has shown that the germavinylidene moiety from 1 behaves as a Lewis base and undergoes an insertion reaction into the metal-halogen bond. X-ray structures of 2, 3, 5, and 6 have been determined.

AB - The bisgermavinylidene [(Me3SiN=PPh2) 2C=Ge→Ge=C(PPh2=NSiMe3)2] (1) has been used as the source of unstable germavinylidene for the synthesis of a series of metal-germavinylidene complexes. Treatment of 1 with M(PPh 3)4 (M = Ni, Pd) afforded the metal-germavinylidene complexes [{(Me3SiN=PPh2)2C=Ge} 2Ni(PPh3)2] (2) and [{(Me3SiN= PPh2)2C= Ge-μ2}Pd(PPh3)] 2 (3), respectively. The germavinylidene moiety from 1 acts as a two-electron terminal and bridging ligand, respectively. Similar reaction of 1 with AgCl or Aul gave [(Me3-SiN=PPh2)2C=Ge(Ag) (Cl)]2 (5) and [(Me3SiN=PPh2) 2C=Ge(Au)(I)]2 (6), respectively. The result has shown that the germavinylidene moiety from 1 behaves as a Lewis base and undergoes an insertion reaction into the metal-halogen bond. X-ray structures of 2, 3, 5, and 6 have been determined.

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Synthesis of novel metal-germavinylidene complexes from bisgermavinylidene

Abstract

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