ORGANOMETALLOIDAL DERIVATIVES OF THE TRANSITION METALS VII. THE THERMAL AND PHOTOCHEMICAL PROPERTIES OF TRIALKYLLEAD DERIVATIVES OF Cr, Mo AND W

Article abstract of DOI:10.1016/S0022-328X(00)85955-0

Trimethyl-and triethyllead derivatives (η⁵-C5H5)M(CO)3PbR3 (M = Cr, Mo, and W) have been synthesized.The trimethyllead derivatives are photochemically, and to a lesser extent, thermally unstable with respect to methyl transfer reactions that yield the corresponding (η⁵-C5H5)M(CO)3CH3 complex.The related triethyllead complexes behave in a distinctly different fashion exhibiting rearrangements to <(η⁵-C5H5)M(CO)3>3PbEt2 (M = W, Mo).The reactions of the Cr, Mo, and W complexes with SO2 yielded the corresponding alkyl sulphinato complexes as did the reaction of t he related Fe complex <(η⁵-C5H5)Fe(CO)2PbEt3>.