Electron Paramagnetic Resonance studies are carried out at room
temperature on single crystals of aqualithiumaquabis (malonato) zincate doped with
VO(II) using X-band frequencies. Rotations in three mutually orthogonal planes
indicate three chemically inequivalent sites, with intensities ratios of 1:2:9. However,
only one site, with the highest intensity, could be followed during crystal rotations. The
calculated spin Hamiltonian parameters are: gxx=1.976; gyy=1.973; gzz=1.933; Axx= 7.01
mT; Ayy= 6.77 mT; Azz= 18.01 mT. The impurity has entered the lattice in an interstitial
position. The analysis of the powder spectrum also reveals the presence of only one
site. Admixture coefficients, Fermi contact and dipolar interaction terms have also been
evaluated. IR, UV-Visible and powder XRD data of the doped complex confirm the
structure and symmetry of the host lattice.
Keywords: Electron paramagnetic resonance, Inorganic compound, Location, Vanadyl, Vrystal growth.
