Molecular structure identification and position of a dopant ion in diaqua(2,2′-bipyridine)malonatozinc(II) by spectroscopic studies - II: VO(II)

Single crystal EPR, optical, FT-IR and powder XRD studies of VO(II) ion doped diaqua(2,2′-bipyridine) malonato zinc complex were carried out at room temperature to ascertain the structural properties. In EPR, the angular variation of vanadium hyperfine lines indicated a single site, with spin Hamiltonian parameters as: gxx = 1.968, gyy = 1.964, gzz = 1.928, Axx = 7.54 mT, Ayy = 6.36 mT and Azz = 18.81 mT. In addition, the dopant had entered the lattice in an interstitial position and the position had been identified with the help of atom positions of the host lattice. The EPR and optical data was corroborated to obtain various bonding parameters, from which the nature of the bonding in the complex was discussed. FT-IR and powder XRD studies were used to observe the effect of dopant on structural parameters of the host lattice.