TRANSITION-METAL SCHIFF-BASE COMPLEXES AS LIGANDS IN TIN CHEMISTRY .4. REACTIONS OF TRIPHENYLTIN CHLORIDE WITH DIVALENT METAL SALICYLALDIMINE COMPLEXES AND THE MOLECULAR-STRUCTURES OF -CENTER-DOT-H2O]-[NI(3-MEOSAL1,3PN)CENTER-DOT-H2O] (1-1) AND [SNPH3CL-CENTER-DOT-H2O]-NI(3-MEOSAL1,3PREN) (1-1) [H23-MEOSAL1,3PN = ,N'-BIS(3-METHOXYSALICYLIDENE)PROPANE-1,3-DIAMINE]

Unlike diorganotin(IV) dihalides, triphenyl- and tribenzyl-tin chlorid es do not react with Schiff-base complexes M(SB) (M = Cu(II), Ni(II) a nd Zn(II); SB = N,N'-ethylenebis-salicylideneaminato and related salic ylaldimine ligands). Triphenyltin chloride does however form 1:1 addit ion complexes with 3,3'-methoxy substituted salicylaldimines of Ni(II) and Cu(II), but only in the presence of water. Each of these complexe s contains the aquo adduct SnPh3Cl.H2O, with the donor water molecule engaged in hydrogen bonding interactions with the four oxygen atoms of the divalent metal salicyaldimine. These structural features were con firmed crystallographically for (SnPh3Cl.H2O)-Ni(3-MeOsal1,3pn) (1:1) [H(2)3-MeOsal1,3pn = N'-bis(3-methoxysalicylidene)propane-1,3-diamine] . In the case of [SnPh3Cl.H2O]-[Ni(3-MeOsal1,3pn).H2O] (1:1) both the water molecule coordinated to nickel and the water molecule coordinate d to tin engage in hydrogen bonding interactions with the Schiff-base oxygen atoms, thereby creating centrosymmetric hydrogen-bonded dimers.