Ligand transfer reactions between Schiff base divalent group 14 element species and titanium, nickel, boron, and phosphorus halides

Reactions of the inorganic complexes TiCl4, NiCl2, BF3, PCl3, and (Y)PCl3 ( Y = O, S) Cp-2-TiCl2, and t-BuPCl2 with the Schiff base divalent group 14 e lement species (L-2)M (1-3: L-2 = N,N'-bis(salicylidene)ethylenediamine (Sa len), M = Ge (1), Sn (2); L-2 = (R,R)-(-)-N,N'-bis(3,5-di-tert-butylsalicyl idene)-1,2-cyclohexanediamine, M = Pb (3)) have been investigated. TiCl2 an d Cp2TiCl2 afforded the ionic [ClTi(L-2)](+)[MCl3](-) (4) and the neutral C p(Cl)Ti(L-2) (5) complexes, respectively. With NiCl2. DPPE (DPPE = 1,2-bis( diphenylphosphino)ethane) and (Salen)Sn as starting materials, substitution of tin led to the complex (Salen)Ni . SnCl2 (7). The linear diboron compou nd F2B(Salen)BF2 (9) together with the complex (Salen)Sn . SnF2 (10) were p roduced on reaction of BF3. Me2O with (Salen)Sn. With t-BuPCl2 and PCl3, th e phosphite t-BuP(L-2) (11) and the phosphocation [(L-2)P](+) (12) together with the anion [MCl3](-) (9) were obtained, respectively. The phosphoryl a nd thiophosphoryl chlorides (Y)PCl3 (Y = O,S) yielded the dinuclear dimeric phosphoranes (Y)P(C1(Salen)P(Y)(C)(Salen) (Y = O (13), S (14)). The crysta l structure of 3 was determined by X-ray structure analysis.