title: EPR, mass, IR, electronic, and magnetic studies on copper(II) complexes of semicarbazones and thiosemicarbazones.
abstract: Copper(II) complexes having the general composition Cu(L)(2)X(2) [where L = isopropyl methyl ketone semicarbazone (LLA), isopropyl methyl ketone thiosemicarbazone (LLB), 4-aminoacetophenone semicarbazone (LLC), and 4-aminoacetophenone thiosemicarbazone (LLD) and X = Cl(-), 1/2SO(4)(2-)] have been synthesized. All the Cu(II) complexes reported here have been characterized by elemental analyses, molar conductance, magnetic moment susceptibility, EI mass, (1)H NMR, IR, EPR, and electronic spectral studies. All the complexes were found to have magnetic moments corresponding to one unpaired electrons. The possible geometries of the complexes were assigned on the basis of EPR, electronic, and infrared spectral studies.
authors.affiliation: Department of Chemistry, Zakir Husain College, University of Delhi, J.L. Nehru Marg, New Delhi 110 002, India. schandra_00@yahoo.com
authors.forename: Sulekh
authors.initials: S
authors.lastname: Chandra
authors.forename: Lokesh Kumar
authors.initials: LK
authors.lastname: Gupta
mesh_terms: D002712:Chlorides / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D004583:Electrons; D008024:Ligands; D008280:Magnetics; D015394:Molecular Structure; D012664:Semicarbazones / Q000737:chemistry*; D013057:Spectrum Analysis; D013431:Sulfates / Q000737:chemistry
chemical_list: D002712:Chlorides; D008024:Ligands; D012664:Semicarbazones; D013431:Sulfates; D003300:Copper