EPR Study of Cu2+ Ion Doped Orotato(Nicotinamid)cobalt Single Crystal

Abstract

We have studied the Cu2+ ion doped orotato(nicotinamid)cobalt(II) complex by using EPR spectroscopy and X-ray diffraction. The single crystal is triclinic with the space group P1. The unit cell dimensions of the crystal are a = 7.2785(4) Å, b = 10.2349(5) Å, c = 12.7372(6) Å, α = 69.297(4)°, β = 74.791(4)° and γ = 76.995(4)°, with Z = 2. We analyzed the EPR spectra of both single crystal and powder of the complex at room temperature. EPR analysis indicates the presence of only one Cu2+ site. We obtained the spin Hamiltonian parameters from the single crystal data for the complex. The spin Hamiltonian parameters are g<inf>x</inf> = 2.032, g<inf>y</inf> = 2.116, g<inf>z</inf> = 2.319, A<inf>x</inf> = 28 G, A<inf>y</inf> = 66 G, A<inf>z</inf> = 126 G. These data indicate that the symmetry of paramagnetic center is rhombic. We constructed the ground state wave function of the Cu2+ ion. © 2015 Elsevier B.V. All rights reserved.