A tetraphenylcyclobutadiene complex of a metal carbonyl hydride
Abstract
The tetraphenylcyclobutadiene derivative C5H5Mo(CO)C4Ph4Cl reacts with Me3CMgCl in diethyl ether to give yellow crystalline relatively air-stable C5H5Mo(CO)C4Ph4H, the first example of a cyclobutadiene–metal complex with a metal–hydrogen bond.