SCHEDULED MAINTENANCE
Bis(alkylidynyl)arsines†
Benjamin J.
Frogley 
a
and
Anthony F.
Hill
*a
a
and
Anthony F.
Hill
*a
Abstract
The synthesis and characterization of the first examples of bimetallic bis(alkylidynyl)arsines, [RAs{C![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
M(CO)2(Tp*)}2] (M = Mo, R = Ph, Me; M = W, R = Ph, Me, nBu; Tp* = hydrotris(3,5-dimethylpyrazol-1-yl)borate) are described. For the tungsten complexes, these may be prepared by a potentially generalizable route: successive treatment of [W(CBr)(CO)2(Tp*)] with nBuLi, ACl3 (A = P, As) and a nucleophilic source of R−via the inferred intermediacy of [ClA{CW(CO)2(Tp*)}2].
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