Synthesis and Spectral Characterization of O,O′- Dialkyl and Alkylene Dithiophosphates of Neodymium (III)

Abstract

Neodymium (III) dithiophosphates of the type; [Nd{S2P(OR)2}Cl2.4H2O], [Nd{S2PO2G}Cl2.4H2O], [Nd{S2P(OR)2}2Cl.3H2O], [Nd{S2PO2 G}2Cl.3H2O], [Nd{S2P(OR)2}3.3H2O] and [Nd{S2PO2G}3.3H2O] [where R = ─CH2CH2 CH3or ──C6H5; G = ─C(CH3)2CH2CH(CH3)─, ─CH2C(CH 3 )2CH2─, ─C(CH3)2C(CH3)2─, ─CH2CH2CH(CH 3 ), ─CH2C(C2H5)2CH2─ and ─CH(CH 3 )CH(CH 3 )-] were prepared by the reaction of NdCl3.6H2O and ammonium dithiophosphates in distilled water. These newly synthesized compounds have been characterized by elemental analysis, TGA, UV-visible, IR, 1 H and 31 P NMR spectral studies. Coordination numbers of eight and nine are suggested for neodymium (III) in these compounds.