EPR and Optical Absorption Studies of VO2+ Doped KH2PO4 and KH3C4O8-2H2O Single Crystals

Recep Biyik; Recep Tapramaz

doi:10.1515/zna-2006-3-410

EPR and Optical Absorption Studies of VO²⁺ Doped KH₂PO₄ and KH₃C₄O₈-2H₂O Single Crystals

Recep Biyik, Recep Tapramaz

Ondokuz Mayis University

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

VO²⁺ 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.

Original language	English
Pages (from-to)	171-179
Number of pages	9
Journal	Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume	61
Issue number	3-4
DOIs	https://doi.org/10.1515/zna-2006-3-410
Publication status	Published - Apr 2006
Externally published	Yes

Keywords

Absorption Spectrum
EPR
Potassium Dihydrogen Phospate
Potassium Tetraoxalate
Vanadyl Ion

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10.1515/zna-2006-3-410

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abstract = "VO2+ 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.",

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author = "Recep Biyik and Recep Tapramaz",

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AB - VO2+ 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.

KW - Absorption Spectrum

KW - EPR

KW - Potassium Dihydrogen Phospate

KW - Potassium Tetraoxalate

KW - Vanadyl Ion

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EPR and Optical Absorption Studies of VO²⁺ Doped KH₂PO₄ and KH₃C₄O₈-2H₂O Single Crystals

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Keywords

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