Ylide-Metal Complexes. IX. The Preparation and Properties of Metal (Be, Mg, Zn, Cd, Hg, Al, In, Sn, and Pb) Complexes with Methylenetriphenylarsorane

The reactions of methylenetriphenylarsorane, (C6H5)3As=CH2 (L), with ZnCl2 or HgCl2 in the mole ratio 2:1 yield new monomeric compounds of bis(methylenetriphenylarsorane)metal dichloride, [(C6H5)3AsCH2–M–CH2As(C6H5)3]Cl2. The reactions of L with BeCl2 or MgCl2 in the mole ratio 2:2 yield dimeric trigonal compounds of di-μ-chloro-bis[(methylenetriphenylarsorane)metal] dichloride, (Remark: Graphics omitted.). The reactions of L with AlCl3 or InCl3 in the mole ratio 4:2 yield dimeric tetrahedral compounds of di-μ-chloro-bis[bis(methylenetriphenylarsorane)metal] tetrachloride, (Remark: Graphics omitted.). The reactions of L with (C6H5)3MCl (M: Sn and Pb) in the mole ratio 1:1 yield new monomeric compounds of (methylenetriphenylarsorane)triphenyl-metal chloride, [(C6H5)3AsCH2–M(C6H5)3]Cl. They are thermally stable complexes and their properties are compared with those of the methylenetriphenylphosphorane metal compounds.