PROPERTIES OF CHALCOGEN CHALCOGEN BONDS .17. DISULFANE AND TRISULFANE WITH STERICALLY CONGESTED ALKYL SUBSTITUENTS - THE 1ST TRANS-DIALKYLDISULFANE

被引：28

作者：

OSTROWSKI, M ^{[1
]}

JESKE, J ^{[1
]}

JONES, PG ^{[1
]}

DUMONT, WW ^{[1
]}

机构：

[1] TECH UNIV CAROLO WILHELMINA BRAUNSCHWEIG,INST ANORGAN & ANALYT CHEM,HAGENRING 30,W-3300 BRAUNSCHWEIG,GERMANY

来源：

CHEMISCHE BERICHTE-RECUEIL | 1993年 / 126卷 / 06期

关键词：

DISULFANES; TRISULFANES; BOND CONFORMATIONS; S-S;

D O I：

10.1002/cber.19931260614

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bis[tris(trimethylsilyl)methyl]trisulfane (1) is obtained from tris(trimethylsilyl)methyllithium and sulfur with subsequent oxidation by oxygen or from tris(trimethylsilyl)methanethiol with sulfur dichloride. The solid trisulfane contains a transoid (helical) C-S-S-S-C backbone without severe distortion from steric strain. Desulfuration of the byproduct bis[tris(trimethylsilyl)methyl]tetrasulfane (2) with mercury provides 1, but further desulfuration of 1 to bis[tris(trimethylsilyl)methyl]disulfane (3) has not been achieved. 3 was isolated after oxidation of lithium tris(trimethylsilyl)methanethiolate with bromine. 3 contains a trans-C-S-S-C moiety with an unusually long S-S bond (210-211 pm). The less crowded bis(triphenylmethyl)disulfane (4) contains a ''normal'' C-S-S-C moiety with anticlinal conformation (torsion angle - 110-degrees).

引用

页码：1355 / 1359

页数：5

共 23 条

[1] THE 1ST X-RAY CRYSTAL STRUCTURAL CHARACTERIZATIONS OF ALKALI-METAL ALKYL THIOLATES - X-RAY CRYSTAL-STRUCTURES OF [LI2(THF)4(SCH(SIME3)2)2] AND [LI2(THF)3.5(SC(SIME3)3)2] (THF = TETRAHYDROFURAN) [J].