Synthesis and characterization of four-membered gallium-arsenic ring compounds containing a bridging As(SiMe3)2 group: crystal structures of Ph2l and Ph2r
作者:William K. Holley、Richard L. Wells、Soheila Shafieezad、Andrew T. McPhail、Colin G. Pitt
DOI:10.1016/0022-328x(90)85445-5
日期:1990.1
The first organogallium four-membered ring compounds with arsenic, halogen mixed bridging to be characterized completely, Ph2 (X = Cl (1) and X = Br (2)) were prepared by the reaction of (Me3Si)3As (3) with Ph2GaCl and Ph2GaBr, respectively. X-ray crystallographic analyses show the compounds to be isostructural with each containing a non-planar Ga-As-Ga-X four membered ring. Isomorphous crystals of
第一有机镓四元与砷,卤素混合桥接环化合物被完全表征中,Ph 2(X =氯(1)和X = Br的(2)),通过(Me中反应制备3 Si)的3如(3)分别用Ph 2 GaCl和Ph 2 GaBr。X射线晶体学分析表明该化合物是同构的,每个化合物都含有一个非平面的Ga-As-Ga-X四元环。1和2的同构晶体属于单斜晶系,空间群P 2 1 / c(C 5 2ħ)中,用四个分子在尺寸上的单元电池:一个10.560(3), b 15.797(3), Ç 20.591(4)α,β92.17(2)°, V 3433(2)埃3为1,和一10.653(1), b 15.777(2), ç 20.517(2)埃,β91.97(1)°, V 3446(1)埃3为2。环的非平面性表现为卤素原子相对于各自的Ga-As-Ga'平面的位移为0.256Å( 1)和0.293Å( 2)。与总体C 2 v的偏差对称用于减轻以这
Synthesis, Structure, and Bridge-Terminal Exchange Kinetics of Pyrazolate-Bridged Digallium and Diindium Complexes Containing Bridging Phenyl Groups
作者:Chatu T. Sirimanne、Wenjun Zheng、Zhengkun Yu、Mary Jane Heeg、Charles H. Winter
DOI:10.1021/om050623r
日期:2005.12.1
·(C6H14)0.5 (40%). The molecular structures of (C6H5)2Ga(μ-Ph2pz)(μ-C6H5)Ga(C6H5)2·C7H8, (C6H5)2Ga(μ-tBu2pz)(μ-C6H5)Ga(C6H5)2·(C6H14)0.5, and (C6H5)2In(μ-tBu2pz)(μ-C6H5)In(C6H5)2·(C6H14)0.5 consist of a 3,5-disubstituted pyrazolato ligand with a diphenylgallio or diphenylindio group bonded to each nitrogen atom. A phenyl group acts as a bridge between the two metal atoms. By contrast, treatment of
以3:5-化学计量比用3,5-二甲基吡唑,3,5-二苯基吡唑或3,5-二叔丁基吡唑处理三苯基镓可得到苯基桥连的复合物(C 6 H 5)2 Ga(μ-Me 2 PZ)(μ-C 6 H ^ 5)镓(C 6 H ^ 5)2(62%),(C 6 H ^ 5)2镓(μ-PH 2 PZ)(μ-C 6 H ^ 5)镓(C 6 H 5)2 ·C 7 H 8(62%)和(C 6 H5)2镓(μ-TBU 2 PZ)(μ-C 6 H ^ 5)镓(C 6 H ^ 5)2(40%),分别为无色或灰白色的结晶固体。与3,5-二- triphenylindium的治疗叔-butylpyrazole以2:1的化学计量得到苯基-桥连络合物(C 6 H ^ 5)2在(μ-TBU 2 PZ)(μ-C 6 H ^ 5)在( C 6 H 5)2 ·(C 6 H 14)0.5(40%)。(C的分子结构6 ħ 5)2镓(μ-PH 2 PZ)(μ-C
Preparation and chemistry of Me3SiCH2AsH2; Preparation of [Me3SiCH2(H)AsGaPh2]3, a trimeric mono(arsino)gallane containing a hydrogen bonded to arsenic. Isolation and X-ray crystal structure of (Me3SiCH2As)5
作者:Richard L. Wells、Chong-Yun Kwag、Andrew P. Purdy、Andrew T. Mcphail、Colin G. Pitt
DOI:10.1016/s0277-5387(00)80586-0
日期:1990.1
Me3SiCH2As(SiMe3)2 (V). The monosilylated arsine was not isolated when 1 equiv. of Me3SiCl was allowed to react with combined II and n-BuLi (1 : 1 mole ratio); rather, a mixture of II and V resulted. Attempted preparations of (Me3SiCH2AsGaPh)n, are described. The ring compound, VI, was prepared by reaction of I with a mixture of Me3SiCl and Mg in THF. The molecular structure of this cycloarsane was determined by single-crystal
摘要在-78°C下用LiA1H4还原Me3SiCH2AsCl2(I)得到Me3SiCH2 AsH2(II),并且II与Ph3Ga反应生成了[Me3SiCH2(H)AsGaPh2] 3(III),其特征在于进行了部分元素分析(C和H) ,1H NMR光谱和低温分子量测定。根据1 H NMR数据,通过II与Me3Ga的反应生成[Me3SiCH2(H)AsGaMe2] 3(IV)。但是,在允许H2,Me4Si,(Me3SiCH2As)5(VI)和未反应的(Me3SiCH2)3Ga与II反应后,只能鉴定出H2,Me4Si,(Me3SiCH2As)3(Ga)。2当量的反应 将Me 3 SiCl与II和n-BuLi的混合物(1∶2摩尔比)混合,得到Me 3 SiCH 2 As(SiMe 3)2(V)。当1当量时,未分离出单甲硅烷基化的rs。使得Me 3 SiCl与合并的II和n-BuLi(1:1摩尔比
Über die darstellung von phenyl(diorganylthio)- und triorganylthiogallanen aus triphenylgallan und thiolen
作者:Gerhard G. Hoffmann
DOI:10.1016/0022-328x(84)80699-3
日期:1984.12
Triphenylgallane reacts with alkyl- as well as arylthiols in the molar ratio to form the corresponding phenyl(dialkylthio)- and phenyl(diarylthio)gallanes. When a molar ratio of is used, the corresponding trialkylthio- and triarylthiogallanes are formed. The spectra and some of the physical and chemical properties of the new compounds are reported. Some reactions of the thiogallanes with trimethylamine
Tetraorganogallate Complexes in Organic Chemistry: Michael Addition to α,β-unsaturated Compounds
作者:Ying Han、Yao-Zeng Huang、Lei Fang、Wen-Tian Tao
DOI:10.1080/00397919908086045
日期:1999.3
Abstract Tetraorganogallate complexes, prepared in situ by addition of an organolithiumreagent to a triorganogallium, reacted smoothly with α,β-unsaturated compounds to give Michael addition products in high yields, and mixed gallates display very high chemoselectivity in the transfer of one of their ligands.