Photophysics and Photoredox Properties of the Tungsten Carbyne Complex Cp{P(OPh)₃}(CO)W⋮CPh

Studies of photoinduced electron transfer from Cp{P(OPh)3}(CO)W⋮CPh (1) to a series of pyridinium and nitroaromatic electron acceptors demonstrate that the excited state is a powerful reducing agent with E1/2(1*/1+•) = −1.7 ± 0.2 V.