Synthesis and Physico-Chemical Properties of 2-Aminoaceto-Phenone-2-Furoylhydrazone Complexes

Abstract

2-Aminoacetophenone-2-furoylhydrazone (Haafh) has been synthesized from the reaction, of 2-aminoacetophenone with 2-furoylhydrazine in the presence of catalytic amount of acetic acid. Complexes of OV(IV), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(ll) and Hg(II) haying the chemical compositions VO(Haafh)₂SO₄, M(Haafh)₂Cl₂ and M(aafh)₂ have been prepared and characterized by their elemental analyses. The complexes are found to be nonelectrolytes in DMF and MeCN solutions. IR data indicate monodentate bonding of Haafh in VO(Haafh)₂SO₄, bidentate bonding through the carbonyl oxygen and azomethine nitrogen in M(Haafh)₂Cl₂, and tridentate bonding through the carbonyl. oxygen, azomethine nitrogen and amine nitrogen in M(aafh)₂. The structure of the complexes has been elucidated by vsing magnetic susceptibility, electronic, photoacoustic, esr, ir and nmr (¹H and ¹³C) spectral studies.