Synthesis, magnetic measurements and spectroscopic studies of copper(I) and copper(II) complexes of thiosemicarbazones derived from aromatic aldehydes and ketones

Copper(I) and copper(II) complexes of the thiosemicarbazone derivatives of p-anisaldehyde (ATSZH), p-tolualdehyde (TTSZH), vanillin (VTSZH) and fluorenone (FTSZH) have been prepared and characterized by elemental analysis; IR, Raman and electronic spectral studies; and magnetic measurements. Changes in selected vibrational absorptions of the ligands upon coordination are discussed. Based on magnetic and spectroscopic data, the structures for the complexes are proposed as follows: polymeric for [Cu(TTSZ)(n), [Cu(ATSZ)(n) and [Cu(VTSZ)(n) . nH(2)O and ligand bridged binuclear for [Cu(VTSZ)Cl](2) . H2O, [Cu(VTSZ)(CH3COO)](2), [Cu(FTSZ)(2)](2) . 2H(2)O, and [Cu(FTSZ)Cl](2) . 2H(2)O.