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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 12
BKCSDE 34(12)
December 20, 2013 

 
Title
Effect of VO(II) Doping on Structural and Optical Properties of Diaquamalonato(1,10-phenanthroline)zinc(II)
Author
Ramesh Hema, Krishnan Parthipan*, Somasundaram Ramachitra, Subramanian Balaji
Keywords
EPR, Vanadyl, Bonding parameters, Interstitial, Admixture coefficients
Abstract
Single crystal EPR and optical studies of a mixed ligand zinc(II) complex doped with VO(II) ion is carried out to establish the structural properties. The angular variation of vanadyl hyperfine lines indicates a single site, with spin Hamiltonian parameters as: gxx = 1.985, gyy = 1.979, gzz = 1.943; Axx = 8.71, Ayy = 6.41 and Azz = 17.80 mT. By comparing the direction cosines of principal g and A values with the direction cosines of metalligand bonds, it has been confirmed that the vanadyl ion has entered the lattice interstitially. The exact interstitial position of VO(II) in host lattice has been calculated using the fractional coordinates of atoms in the host lattice out of many assumptions. The EPR and optical data have been confirmed to obtain various bonding parameters, from which the nature of the bonding in the complex is discussed. FT-IR confirms the formation of structure of host lattice.
Page
3547 - 3552
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