Ba. Uzoukwu et al., METAL(II) COMPLEXES OF 4-ACYLBIS(PYRAZOLONE-5) - SYNTHESIS AND SPECTROSCOPIC STUDIES, Synthesis and reactivity in inorganic and metal-organic chemistry, 28(2), 1998, pp. 207-221
The synthesis of metal(II) complexes of 4-adipoyl and 4-sebacoyl deriv
atives of bis(1-phenyl-3-methylpyrazolone-5) with Ni2+, CU2+, Zn2+ Pb2
+, Co2+, Mn2+, and Ca2+ has been carried out. Characterisation was by
elemental analysis, UV, IR and NMR spectral studies. The complexes con
form. to the general formula ML.xH(2)O where M = metal ion, L is 4-acy
lbis(1-phenyl-3 -methylpyrazolone-5) dianion and x = 0, 1, 1/2 or 2. T
he monomeric and dimeric species of these metal complexes are discusse
d.