Syntheses, Properties, and Structures of Bis(trifluorovinyl) Tellurium Compounds

被引：5

作者：

Naumann, Dieter ^{[1
]}

Tyrra, Wieland ^{[1
]}

von Foullon, Alexander ^{[1
]}

Pantenburg, Ingo ^{[1
]}

机构：

[1] Univ Cologne, Inst Anorgan Chem, D-50939 Cologne, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2009年 / 635卷 / 6-7期

关键词：

Tellurium; Perfluorovinyl groups; NMR spectroscopy; Crystal engineering; CRYSTAL-STRUCTURE; CL;

D O I：

10.1002/zaac.200801415

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of AgC2F3, prepared from Me3SiC2F3 and AgF, with elemental tellurium in propionitrile yields Solutions of Te(C2F3)(2). Oxidations of these solutions with either xenon difluoride, elemental chlorine or bromine give the corresponding bis(trifluorovinyl)tellurium dihalides Te(C2F3)(2)F-2, Te(C2F3)(2)Cl-2 and Te(C2F3)(2)Br, in moderate yields. Ligand exchange between Te(C2F3)(2)F-2 and trifluoroacetic acid anhydride yields Te(C2F3)(2)(OCOCF3)(2). Further attempted exchange reactions resulted in complex mixtures. At -78 degrees C Te(C2F3)(2)F-2 reacts with fluoride ions with formation of the ion [Te(C2F3)(2)F-3](-), which decomposes already at -40 degrees C under formation of mainly [Te(C2F3)F-4](-) and Te(C2F3)(2). The solid-state structures of Te(C2F3)(2)F-2, Te(C2F3)(2)Cl-2, Te(C2F3)(2)Br, and Te(C2F3)(2)(OCOCF3)(2) have been elucidated.

引用

页码：862 / 868

页数：7

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