The d2/d3 alkyne redox pair [WF2(PhC
CPh)Tp′]z (z = +1 or 0): missing links in a ‘redox family tree’
Abstract
The d2/d3 redox pair [WF2(PhCCPh)Tp′]z [z = +1 or 0, Tp′ = hydrotris(3,5-dimethylpyrazolyl)borate] is the missing link in a ‘redox family tree’ relating the d6 tricarbonyls [M(CO)3L]− to the d2 trihalides [MX3L] (M = Mo or W, L = Cp or Tp′) by a series of stepwise reactions involving sequential one-electron oxidation followed by ligand substitution.