title: Single crystal EPR and optical studies of paramagnetic ions doped zinc potassium phosphate hexahydrate--part I: Cu(II)--a case of orthorhombic symmetry.
abstract: Single crystal electron paramagnetic resonance (EPR) studies on Cu(II) doped zinc potassium phosphate hexahydrate (ZPPH) were carried out at room temperature. The angular variation spectra in the three orthogonal planes indicate that the paramagnetic impurity has entered the lattice substitutionally in place of Zn(II) and the spin Hamiltonian parameters calculated from these spectra are g(xx) = 2.188, g(yy) = 2.032, g(zz) = 2.373, Axx = 50 G, Ayy = 65.0 G and Azz = 80 G. The g and A tensors were coincident and these values matched fairly well with the values obtained from powder spectrum. The bonding parameters have also been calculated.
authors.affiliation: Department of Chemistry, Pondicherry University, India. psrao@pu.pon.nic.in
authors.forename: P
authors.initials: P
authors.lastname: Sambasiva Rao
authors.forename: T M
authors.initials: TM
authors.lastname: Rajendiran
authors.forename: R
authors.initials: R
authors.lastname: Venkatesan
authors.forename: N
authors.initials: N
authors.lastname: Madhu
authors.forename: A V
authors.initials: AV
authors.lastname: Chandrasekhar
authors.forename: B J
authors.initials: BJ
authors.lastname: Reddy
authors.forename: Y P
authors.initials: YP
authors.lastname: Reddy
authors.forename: R V
authors.initials: RV
authors.lastname: Ravikumar
mesh_terms: D003300:Copper / Q000737:chemistry*; D003460:Crystallization; D004578:Electron Spin Resonance Spectroscopy; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D003300:Copper; D015032:Zinc