Bıyık, RecepTapramaz, Recep2018-11-202018-11-202006Bıyık, R. ve Tapramaz, R. (2006). EPR and optical absorption studies of VO2+ doped KH2PO4 and KH3C4O8·2H2O single crystals. Zeitschrift Naturforschung Teil A, 61a(1-2), 171–179.0932–07840300–0171http://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/969VO2+ doped potassium dihydrogen phosphate (KH2PO4) and potassium tetraoxalate (KH3C4O8 · 2H2O) single crystals and powders are examined by electron paramagnetic resonance and optical absorption spectroscopy. Angular variations of KH2PO4 and KH3C4O8 ·2H2O single crystals show four and two different VO2+ sites, respectively. The local symmetry of VO2+ complexes is nearly axial for both host crystals. The optical absorption spectra show three bands. Spin Hamiltonian parameters are measured and molecular orbital coefficients are calculated by correlating EPR and optical absorption data for the central vanadyl ion.enginfo:eu-repo/semantics/openAccessVanadyl ionVanadil iyonuPotassium dihydrogen phospatePotasyum dihidrojen fosfatAbsorption spectrumEmilim spektrumuPotassium tetraoxalatePotasyum tetraoksalatEPRarticle17117961a