名称:
Metal Chelates of Cerium(III), Thorium(IV), and Dioxouranium(VI); Complexes with Some Derivatives of Aryl Schiff Bases
摘要:
New Ce(III), Th(IV) and U(VI) complexes with the aryl Schiff bases 2-hydroxybenzylamine-2'-hydroxybenzylidene (HL1), -2'-hydroxynaphthylidene (HL2), -2'-hydroxy-5'-bromobenzylidene (HL1), -2'-hydroxy-5'-chlorobenzylidene (HL4), 2'-hydroxy-3',5'-dichlorobenzylidene (HL5) and 2'-hydroxy-3-methoxybenzylidene (HL6) have been synthesized and characterized by elemental and thermal analyses, molar conductance, magnetic susceptibility, IR, H-1 NMR and electronic spectra. Elemental analyses along with conductometric titrations showed the formation of 1:1 and 1:2 (M:L) complexes while IR, molar conductance and H-1 NMR data proved that these ligands act as monobasic, tridentates for the 1: 1 and monobasic, bidentates for the 1:2 complexes with a coordination number of eight in both.