BIS(TRIPHENYLTIN) SUCCINATE AND ITS COMPLEX WITH DIMETHYL-SULFOXIDE AND ETHANOL, AND ITS COMPLEX WITH HEXAMETHYLPHOSPHORAMIDE

Bis(triphenyltin) succinate exists as a centrosymmetric dinuclear mole cule, mu-succinato-bis(triphenyltin), [Sn-2-(C4H4O4)(C6H5)(6)], With i ts Sn atom in tetrahedral coordination. When crystallized from an etha nol solution containing excess dimethyl sulfoxide (DMSO), it yields s( triphenyltin)].[mu-succinato-bis-(triphenyltin). sesqui(dimethyl sulfo xide). hemiethanol], -4(C4H4O4)(2)(C6H5)(12)(C2H6O)(1/2)(C2H6OS)(3/2)] , and when crystallized from an ethanol solution containing excess hex amethylphosphoramide (HMPA), it yields o-bis(triphenyltin).bis(hexamet hylphosphoramide)], [Sn-4(C4H4O4)(2)(C6H5)(12)(C6H18N3OP)(2)]. In the DMSO and HMPA complexes, the [mu-succinato-bis(triphenyltin)] moiety i s linked to the [mu-succinato-bis(triphenyltin).bis(donor)] moiety by a carboxylate bridge, giving rise to a linear chain structure of tetra nuclear complexes.