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

摘要

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 element species (L-2)M (1-3: L-2 = N,N'-bis(salicylidene)ethylenediamine (Salen), M = Ge (1), Sn (2); L-2 = (R,R)-(-)-N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine, M = Pb (3)) have been investigated. TiCl2 and Cp2TiCl2 afforded the ionic [ClTi(L-2)](+)[MCl3](-) (4) and the neutral Cp(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 compound F2B(Salen)BF2 (9) together with the complex (Salen)Sn . SnF2 (10) were produced on reaction of BF3. Me2O with (Salen)Sn. With t-BuPCl2 and PCl3, the phosphite t-BuP(L-2) (11) and the phosphocation [(L-2)P](+) (12) together with the anion [MCl3](-) (9) were obtained, respectively. The phosphoryl and 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 crystal structure of 3 was determined by X-ray structure analysis. [References: 39]