REACTIONS OF GALLIUM TRICHLORIDE WITH BIS(DIALKYLAMINO)DIMETHYLSILANES AND BIS(ALKYLAMINO)DIMETHYLSILANES

被引：19

作者：

NUTT, WR ^{[1
]}

BLANTON, JS ^{[1
]}

BOCCANFUSO, AM ^{[1
]}

SILKS, LA ^{[1
]}

GARBER, AR ^{[1
]}

ODOM, JD ^{[1
]}

机构：

[1] UNIV S CAROLINA,DEPT CHEM,COLUMBIA,SC 29208

来源：

INORGANIC CHEMISTRY | 1991年 / 30卷 / 22期

关键词：

D O I：

10.1021/ic00022a011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The Lewis acid-base adduct Me2Si(NMe2)2.GaCl3 was isolated when GaCl3 was allowed to react with Me2Si(NMe2)2. The reaction of Me2Si(NEt2)2 with GaCl3 proceeded by dehalosilylation to give [Cl2Ga(NEt2)2SiMe2][(Cl3Ga)2NEt2] and ET2NSi(Cl)Me2. The N-alkylated hexamethylcyclotrisilazane (RNSiMe2)3 and RNH2.GaCl3 were obtained from the reaction of GaCl3 with [R(H)N]2SiMe2, where R = Et and n-Bu. The molecular structures of Me2Si(NMe2)2.GaCl3 and [Cl2Ga(NEt2)2SiMe2][(Cl3Ga)2NEt2] were confirmed by X-ray crystallography. Crystal data for Me2Si(NMe2)2.GaCl3: monoclinic space group C2/c (No. 15), a = 26.146 (7) angstrom, b = 8.043 (2) angstrom, c = 16.164 (6) angstrom, beta = 124.97 (2)-degrees, V = 2785 (1) angstrom 3, Z = 8, rho(calcd) = 1.538 g cm-3, and R = 0.0489. Crystal data for [Cl2Ga(NEt2)2SiMe2][Cl3Ga)2NEt2]: orthorhombic space group P2(1)2(1)2(1) (No. 19), a = 14.813 (4) angstrom, b = 15.768 (4) angstrom, c = 13.102 (2) angstrom, V = 3060 (1) angstrom 3, Z = 4, rho(calcd) = 1.665 g cm-3, and R = 0.0556. The four-membered (Ga-N-Si-N) ring in [Cl2Ga(NEt2)2SiMe2]+ is nonplanar with a fold angle of 165.5 (5)-degrees on the Ga...Si diagonal. The H-1, C-13, and Si-29 NMR spectra are reported and discussed.

引用

页码：4136 / 4140

页数：5

共 30 条

[1] TRIS(N-METHYL) AND TRIS(N-ETHYL)-HEXAMETHYL-CYCLOTRISILAZANES - PREPARATIONS AND SOME PROPERTIES [J].