Abstract
Copper(II) complexes of the type Cu[Tl(SCN 2] 2·L [where L = benzoic hydrazide (BH), isonicotinic hydrazide (INH), salicyclic hdyrazide (SH), anthranilic hydrazide (AH), p-hydroxybenzoic hydrazide (PHBH), p-aminobenzoic hydrazide (PABH) and their isopropanone derivatives, i.e. isopropanone benzoylhdyrazone (IBH), isopropanone isonicotinoyl hydrazone (IINH), isopropanone salicyloylhydrazone (ISH) and isopropanone anthranoylhydrazone (IAH)] were synthesized and characterized. All the complexes are non-electrolytes, and dissociate in H 2O, C 2H 5OH, CH 3CN and CH 3COCH 3. They are either coordinated through CO and NH 2 groups of the hydrazide or CO and CN of the hydrazone ligands. The electronic and ESR spectra suggest a planar geometry for Cu[Tl(SCN 2] 2 and a tetragonally distorted octahedral structure for all other complexes. The X-ray diffraction parameters for some of the complexes correspond to a tetragonal crystal lattice.
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