Bis(alkylidynyl) arsines

Abstract

The synthesis and characterization of the first examples of bimetallic bis(alkylidynyl) arsines, [RAs{CRM(CO)(2)(Tp*)}(2)] (M = Mo, R = Ph, Me; M = W, R = Ph, Me, Bu-n; 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 (BuLi)-Bu-n, ACl(3) (A = P, As) and a nucleophilic source of R-via the inferred intermediacy of [ClA{C W(CO)(2)(Tp*)}(2)]. Show more