“…Vol'pin, who possessed a wonderful insight, advised us to test our unusual reaction straight away, using different transition metals. Indeed, immediately after Cp(CO) 2 Mn C CHPh (1) and [Cp(CO) 2 Mn] 2 (-C CHPh) (2) [7,15], their rhenium analogues Cp(CO) 2 Re C CHPh and [Cp(CO) 2 Re] 2 (-C CHPh) were obtained from Cp(CO) 2 Re(thf) and PhC CH under the same mild conditions [16].…”