STUDIES ON ACETYLFERROCENYLNAPHTHOYLHYDRAZONE (AND DIACYL HYDRAZONE) AND ITS COORDINATION-COMPOUNDS WITH LEAD(II)

Acetylferrocenylnaphthoylhydrazone, acetylferrocenyl-3-hydroxyl-2-naphthoylhydrazone, 1,1'-diacetylferrocenylnaphthoylhydrazone and 1,1'-diacetylferrocenyl-3-hydroxyl-2-naphthoylhydrazone have been synthesized by the condensation of acetylferrocene or 1,1'-diacetylferrocene with naphthoylhydrazine or 3-hydroxyl-2-naphthoyl-hydrazine, respectively. Their lead(II) coordination compounds have been prepared and characterized by elemental analyses, IR, H-1 NMR, UV, TG-DTA and molar conductivities. Results show that the ligands coordinate in the enolic form with lead(II) and the thermostabilities of the coordination compounds are higher than that of the corresponding ligand due to the formation of the chelate ring.