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Synthesis of mono- and ditungstaboranes from reaction of Cp*WCl4 and [Cp*WCl2](2) with BH3 center dot thf or LiBH4 (Cp* = eta(5)-C5Me5). Control of reaction pathway by choice of monoboron reagent and oxidation state of metal center

Abstract:

Reaction between Cp*WCl4 or [Cp*WCl2]2 (Cp*= η5·C5Me5) and BH3·thf affords the new tungstaborane (Cp*WCl)2B2H6, 2, which reacts with further BH3·thf to give (Cp*W)2B5H9, 1. The structure of 1 has been determined by a single-crystal X-ray diffraction study and is best described as a bicapped trigonal bipyramidal, the same as previously found for Cr and Mo analogues. The first step of this reaction is reduction of Cp*WCl4 to [Cp*WCl2]2 by BH3· thf, paralleling that of the Cp*MoCl4 system. In co...

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Publication status:
Published

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Publisher copy:
10.1021/om980743h

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Fehlner, TP More by this author
Journal:
ORGANOMETALLICS
Volume:
18
Issue:
1
Pages:
53-64
Publication date:
1999-01-04
DOI:
EISSN:
1520-6041
ISSN:
0276-7333
URN:
uuid:11c501eb-061c-4d14-8506-37029f1c9202
Source identifiers:
51724
Local pid:
pubs:51724
Language:
English

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