Six New Heterobinuclear Complexes with Transition Metal Ions: Synthesis, Characterization, Spectral Studies and Toxicity Analysis

Heterobinuclear complexes have been synthesized by mononuclear complexes of 5-nitroindazole and bis-(1,2-diaminobenzophenone) malonyldihydrazone Cu(II)/Ni(II) chloride of the type [M₁L₁Cl₂M₂(L₂)₂] where M₁=Cu(II), Ni(II), M₂=Cu(II), Mn(II), Co(II), L₁=bis-(2-amino benzophenone)malonyldihydrazone L₂=5-nitroindazole. All of the complexes have been characterized by IR, UV-Vis and EPR spectroscopy, elemental analysis, magnetic moments and molar conductance measurements. The toxicity of the representative compounds has been studied against cockroaches.