The Crystal Structure of Bi2W6Br18 and a New Synthesis of W6Br12

The new tungsten bromide cluster compound Bi2W6Br18 was synthesized by reacting tungsten hexabromide with bismuth metal in a silica tube at 350 °C. The structure of Bi2W6Br18 was refined by single‐crystal X‐ray diffraction in the space group P21/c with unit cell dimensions of a = 981.8(2) pm, b = 13...

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Published inZAAC - Journal of Inorganic and General Chemistry Vol. 636; no. 9-10; pp. 1817 - 1820
Main Authors Ströbele, Markus, Meyer, H.-Jürgen
Format Book Review Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.09.2010
WILEY‐VCH Verlag
Wiley-VCH Verlag
Subjects
Bismuth
Bromine
Cluster compounds
Structure elucidation
Tungsten
Physical Sciences
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Summary:The new tungsten bromide cluster compound Bi2W6Br18 was synthesized by reacting tungsten hexabromide with bismuth metal in a silica tube at 350 °C. The structure of Bi2W6Br18 was refined by single‐crystal X‐ray diffraction in the space group P21/c with unit cell dimensions of a = 981.8(2) pm, b = 1305.9(2) pm, c = 1256.8(2) pm and β = 101.81(2)°. The crystal structure is constructed from [(W6Br8i)Br6a]2–anions being interconnected by outer bromine ligands with (BiBr2) units that behave as cations in (BiBr2)2[(W6Br8)Br6]. Short Bi–Br bonding distances at 261.3(1) pm and 265.9(2) pm in (BiBr2) units suggest the presence of covalent interactions. Thermal decomposition of the compound leads to W6Br12.
Bibliography:ArticleID:ZAAC201000071
istex:C945B302A1249059FBBF81AB0D7CBE34A94AB939
ark:/67375/WNG-L18PW1K7-0
Dedicated to Professor Bernd Harbrecht on the Occasion of His 60th Birthday
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.201000071