Arsinocarbyne reactivity
Date
2021-12-22
Authors
Frogley, Benjamin J
Hill, Anthony
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Royal Society of Chemistry
Abstract
The reactivity of the tungsten diphenylarsinocarbyne [W(uCAsPh2)(CO)2(Tp*)] (1; Tp* = hydrotris(dimethylpyrazolyl)borato) is described. The pyramidal arsenic coordinates to a selection of 5d metal
centres, forming heterobi- or trimetallic complexes with osmium(II), iridium(III), platinum(II) and gold(I). In
the latter case, the WuC bond provides a competitive site for gold(I) coordination. Treatment with
MeOSO2CF3 results in methylation at arsenic to give the first example of an arsoniocarbyne, [W
(uCAsPh2CH3)(CO)2(Tp*)]O3SCF3, for which only the WuC bond remains available for gold(I)
coordination.
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Dalton transactions
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Journal article
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