Reactions of bis(η-cyclopentadienyl)dihydrido-molybdenum and -tungsten with acetatotrimethyl-lead. X-Ray structure and reactivity of the demethylated lead product containing molybdenum–lead bonds: µ-diacetatoplumbio-bis[bis(η-cyclopentadienyl)hydrido-molybdenum](2 Pb–Mo)
Abstract
Novel transition metal–lead bonded complexes of the bis(η-cyclopentadienyl) class of organometallic compounds have been formed by the demethylation of acetatotrimethyl-lead in the presence of the molybdenum and tungsten dihydrides. An X-ray structure analysis of the molybdenum derivative has established the presence of a Mo–Pb–Mo linkage and a hydride ligand. The complex reacts with cyanoacetylene (HCCCN) giving a bis(alkenyl) compound [Mo(η-C5H5)2(σ-CHCHCN)2].