A Disilene Base Adduct with a Dative Si-Si Single Bond

被引：42

作者：

Schweizer, Julia I. ^{[1
]}

Scheibel, Markus G. ^{[2
]}

Diefenbach, Martin ^{[1
]}

Neumeyer, Felix ^{[1
]}

Wuertele, Christian ^{[2
]}

Kulminskaya, Natalia ^{[3
]}

Linser, Rasmus ^{[3
]}

Auner, Norbert ^{[1
]}

Schneider, Sven ^{[2
]}

Holthausen, Max C. ^{[1
]}

机构：

[1] Goethe Univ Frankfurt, Inst Anorgan Chem, Max von Laue Str 7, D-60438 Frankfurt, Germany

[2] Univ Gottingen, Inst Anorgan Chem, Tammannstr 4, D-37077 Gottingen, Germany

[3] Max Planck Inst Biophys Chem, Dept NMR Based Struct Biol, Fassberg 11, D-37077 Gottingen, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 05期

关键词：

bonding analysis; dative bonds; disilenes; silylenes; X-ray diffraction; MAIN-GROUP COMPOUNDS; CHEMISTRY; COMPLEX; COORDINATION; REACTIVITY; COMPOUND; SILYLENE; SURFACE; SI2CL6;

D O I：

10.1002/anie.201510477

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An experimental and theoretical study of the base-stabilized disilene 1 is reported, which forms at low temperatures in the disproportionation reaction of Si2Cl6 or neo-Si5Cl12 with equimolar amounts of NMe2Et. Single-crystal X-ray diffraction and quantum-chemical bonding analysis disclose an unprecedented structure in silicon chemistry featuring a dative Si -> Si single bond between two silylene moieties, Me2EtN -> SiCl2 -> Si(SiCl3)(2). The central ambiphilic SiCl2 group is linked by dative bonds to the amine donor and the bis(trichlorosilyl) silylene acceptor, which leads to push-pull stabilization. Based on experimental and theoretical examinations a formation mechanism is presented that involves an autocatalytic reaction of the intermediately formed anion Si(SiCl3)(3)(-) with neo-Si5Cl12 to yield 1.

引用

页码：1782 / 1786

页数：5

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