Journal of the American Chemical Society, Vol.132, No.22, 7584-7584, 2010
An Iron-Capped Metal-Organic Polyyne: {[Fe](C C)(2)[W] CC CC [W](C C)(2)[Fe]}
The organometallic conjugated complex H(C C)(2)[W] CC CC [W](C C)(2)H {[W] = W(dppe)(2); dppe = 1,2-bis(diphenylphosphino)ethane} containing a ditungstenatetradecaheptayne unit was synthesized by utilizing a new and efficient coupling method. The stannylated derivative was converted to the tetranuclear complex, which exhibits efficient long-range electron transfer.