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Abstract
A group of newly synthesized phosphorus compounds of hydrazone and semicarbazone derivatives IIIa-t have been prepared by reaction of hydrazones and semicarbazones with diphenylchlorophosphate. These compounds have been characterized by means of IR, UV, 1 H-NMR, mass spectroscopy and elemental analyses. Their complexation ability toward various divalent metal acetates Mn (OAc) 2 · 4H 2 O, Co (OAc) 2 · 4H 2 O, Ni (OAc) 2 · 4H 2 O, Cu (OAc) 2 · H 2 O, in organic solvents is described. Metal/phosphosemicarbazones ratios are measured and the results are discussed. The isolated complexes are insoluble in organic solvents and water. Their structures were proposed on the basis of microanalyical data, IR, (UV/VIS), mass spectroscopy and magnetic moments. The proposed structures of these complexes were found to be in ration of 1: 2 (M : L). The electronic spectral data and magnetic moment show that The manganese, cobalt, and nickel complexes are octahedral geometry, while the copper complex is square planner.