Synthesis and characterization of samarium(III) tris(O,O '-dialkyl and alkylene dithiophosphates) and their adducts with nitrogen and phosphorus donor bases

摘要

Samarium (III) tris(dithiophosphates, [Sm{S2P(OR)(2)}3.3H(2)O] (where R = CH2CH2CH3 or C6H5) and [Sm{S(2)PO(2)G} 3.3H(2)O] [where G = C(CH3)(2)CH2CH(CH3),CH2C(CH3) 2CH2-, C(CH3)(2)C(CH3)(2)-, CH2CH2CH(CH3), CH2C(C2H5)(2)CH2-, and CH(CH3)CH(CH3)-], were prepared by a reaction of SmCl3.6H(2)O and ammonium dithiophosphates in distilled water. Adducts of the type [Sm{S2P(OR)(2)}(3).nL] and [Sm{S(2)PO(2)G}(3).nL] [where n = 1, L = N2C10H8 and n = 2, L = P(C6H5)(3)] were prepared by a reaction of samarium (III) tris(dithiophosphates) and nitrogen or phosphorus donor bases in benzene. These newly synthesized compounds have been characterized by elemental analysis, molecular weights measurement, thermogravimetric analysis, UV-visible, IR, and H-1 and P-31 NMR spectral studies. Coordination numbers of eight and nine are suggested for samarium (III) in these derivatives.