title: ESR and optical studies of Cu2+ doped zinc glutamate dihydrate.
abstract: The ESR study of the Cu2+ doped zinc glutamate dihydrate is carried out at room temperature. Two magnetically nonequivalent sites for Cu2+ are observed. The spin Hamiltonian parameters are determined with the fitting of spectra to rhombic symmetry crystalline field. The parameters are as follows: Cu2+(I): gx=2.0170±0.0002, gy=2.0768±0.0002, gz=2.2334±0.0002, Ax=(74±2)×10(-4), Ay=(99±2)×10(-4), Az=(134±2)×10(-4) cm(-1)and Cu2+(II): gx=2.0180±0.0002, gy=2.0550±0.0002, gz=2.1633±0.0002, Ax=(100±2)×10(-4), Ay=(100±2)×10(-4), Az=(115±2)×10(-4) cm(-1). The ground state wave function is also determined. The g-anisotropy is evaluated and compared with the experimental value. Using the data of optical absorption study undertaken at room temperature the nature of bonding in the complex is also discussed.
authors.affiliation: EPR Laboratory, Department of Physics, University of Allahabad, Allahabad, India. ram_kripal2001@rediffmail.com
authors.forename: Ram
authors.initials: R
authors.lastname: Kripal
authors.forename: M P
authors.initials: MP
authors.lastname: Yadav
authors.forename: Santwana
authors.initials: S
authors.lastname: Shukla
mesh_terms: D000042:Absorption; D003300:Copper / Q000737:chemistry*; D003460:Crystallization; D004578:Electron Spin Resonance Spectroscopy; D018698:Glutamic Acid / Q000737:chemistry*; D055620:Optical Phenomena; D013696:Temperature; D015032:Zinc / Q000737:chemistry
chemical_list: D018698:Glutamic Acid; D003300:Copper; D015032:Zinc