title: Spectral studies and structure of a 2-hydroxyacetophenone 3-hexamethyleneiminyl thiosemicarbazonate(-2) copper(II) complex containing 1,10-phenanthroline.
abstract: The spectral studies and structure of a ternary complex of copper(II) with 2-hydroxyacetophenone 3-hexamethyliminylthiosemicarbazonate (L(2-)) and 1,10-phenanthroline (phen) are reported. The thiosemicarbazone binds to the metal as a dianionic ONS-donor (L(2-)) ligand, and forms a complex of the stoichiometry [CuLphen]. The copper(II) complex was characterized by IR and UV/Vis spectroscopies, as well as by solid state room-temperature magnetic susceptibility. Spin Hamiltonian and bonding parameters of the compound are calculated from the EPR spectra. Computer simulation of EPR spectrum in DMF at 77 K aided the calculation of magnetic and bonding parameters of the compound. The structure of the compound is solved by single crystal X-ray diffraction. The geometry around copper is distorted square pyramidal.
authors.affiliation: Department of Applied Chemistry, Cochin University of Science and Technology, 682 022, Kerala, Kochi, India.
authors.forename: Rohith P
authors.initials: RP
authors.lastname: John
authors.forename: A
authors.initials: A
authors.lastname: Sreekanth
authors.forename: Maliyeckal R
authors.initials: MR
authors.lastname: Prathapachandra Kurup
authors.forename: Anwar
authors.initials: A
authors.lastname: Usman
authors.forename: Abdul Razak
authors.initials: AR
authors.lastname: Ibrahim
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
mesh_terms: D000098:Acetophenones / Q000737:chemistry*; D003300:Copper / Q000737:chemistry; D004578:Electron Spin Resonance Spectroscopy; D006860:Hydrogen Bonding; D007477:Ions; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D010618:Phenanthrolines / Q000737:chemistry*; D013053:Spectrophotometry / Q000379:methods; D013055:Spectrophotometry, Infrared; D013696:Temperature; D013882:Thiosemicarbazones / Q000737:chemistry; D014466:Ultraviolet Rays; D014961:X-Ray Diffraction
chemical_list: D000098:Acetophenones; D007477:Ions; D008024:Ligands; D009942:Organometallic Compounds; D010618:Phenanthrolines; D013882:Thiosemicarbazones; C479870:hydroxyacetophenone 3-hexamethyleneiminyl thiosemicarbazonate(-2) copper(II); C087908:2'-hydroxyacetophenone; D003300:Copper; C025205:1,10-phenanthroline