Synthesis, Structural, Thermal and Biological Studies of Ligand Derived from Anthrone with 4-Aminoantipyrine and its Metallic Complexes

This study presented the synthesis of ligand 4-(anthracen-9(10H)-ylideneamino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (L2), synthesized from reaction of one equivalent of (Anthrone) with one equivalent for 4-aminoantipyrine and its complexes for metal ions [Mn(II), Co(II), Ni(II), Cu(II), Zn(II),Cd(II) and Hg(II)].  The ligand and their complexes were characterized by melting point measurement, elemental microanalysis C.H.N, FT-IR, UV, (1H, 13C-NMR and Mass spectroscopy only ligand) along with atomic absorption spectrophotometer, chloride contents, conductivity measurement, magnetic susceptibility and thermal gravimetric analysis only complexes, in addition to evaluating their biological activity against the types of bacteria. Based on data of all techniques suggested an octahedral geometry for complexes except complex [Ni(L)2] Cl2.H2O, the shape square planer and complexes Cd(II), Hg(II) and Zn(II) were shown. The shape tetrahedral appeared. The results showed biological activity against the types of bacteria for most of the synthesized ligand and its complexes.