Synthesis and Structural Characterization of Alkylgallium-Phosphorus Compounds. X-ray Crystal Structures of (Me3CCH2)2(Cl)Ga·P(SiMe3)3, R
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- 作者：Richard L. Wells and ; Ryan A. Baldwin ; Peter S. White ; William T. Pennington ; Arnold L. Rheingold ; and Glenn P. A. Yap
- 刊名：Organometallics
- 出版年：1996
- 出版时间：January 9, 1996
- 年：1996
- 卷：15
- 期：1
- 页码：91 - 97
- 全文大小：263K
- 年卷期：v.15,no.1(January 9, 1996)
- ISSN：1520-6041
文摘
Reaction of(Me3CCH2)2GaCl with(Me3Si)3P in a 1:1 mole ratio does notresult in anyintermolecular dehalosilylation but affords the adduct(Me3CCH2)2(Cl)Ga·P(SiMe3)3(1) innearly quantitative yield. Mixing(Me3CCH2)2GaCl and(Me3Si)3P in a 2:1 mole ratioyieldsas the only isolable product the dimeric compound[(Me3CCH2)(Cl)GaP(SiMe3)2]2(2), whichcontains three different substituents on the gallium center. Thistype of product is alsoobserved in the 2:1 reaction of(Me3SiCH2)2GaBr and(Me3Si)3P, where[(Me3SiCH2)(Br)GaP(SiMe3)2]2 (3)is obtained. The salt elimination reaction between(Me3CCH2)2GaClandLiP(SiMe3)2 leads to the dimer[(Me3CCH2)2GaP(SiMe3)2]2(4) in good yield. Equilibrationof compound 4 with 2 molar equiv of(Me3CCH2)2GaCl producesthe mixed-bridge species(Me3CCH2)2GaP(SiMe3)2Ga(CH2CMe3)2Cl(5) in nearly quantitative yield. Themixed-bridgecompound(Me3SiCH2)2GaP(SiMe3)2Ga(CH2SiMe3)2Cl(6) results from the 2:1 dehalosilylationreaction of(Me3SiCH2)2GaCl and(Me3Si)3P. Various physical andspectroscopic data arepresented for compounds 1-6, as well as theresults of their X-ray crystal structuredeterminations.