Abstract
Depending on stoichiometry, reactions of the mixed valence Sn(0)/Sn(III) compound Sn(SnAr3)2 (1) (Ar = C6H4(OiPr)2-2,6) with the likewise substituted plumbylene PbAr2 (3) afforded either the homoleptic distannylplumbylene Pb(SnAr3)2 (4) or the heteroleptic arylstannylplumbylene Pb(Ar)SnAr3 (5), a valence isomer of a stannaplumbene.