Infrared spectroscopic and DFT investigations of the vanadate-tellurate glasses structures.
Vanadate-tellurate vitreous systems with composition (1-x)TeO(2).xV(2)O(5) where x=0.3 and 0.4 have been prepared by the conventional melt-quench method. The structural aspects have been investigated using FTIR spectroscopy and the density functional theory (DFT) calculations. The present study provides the interesting information concerning devitrification behavior of the vanadate-tellurate vitreous system which occur Te(2)V(2)O(9) crystalline phase. The structure of the heat-treated glasses was found to consist mainly of rings containing [TeO(3)], [TeO(4)], [VO(4)] and some [VO(5)] structural units.
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Department of Physics, Technical University of Cluj-Napoca, 400020 Cluj-Napoca, Romania. Simona.Rada@phys.utcluj.ro
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Culea
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D002516:Ceramics / Q000737:chemistry*; D008956:Models, Chemical; D015394:Molecular Structure; D011789:Quantum Theory; D013055:Spectrophotometry, Infrared; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013691:Tellurium / Q000737:chemistry*; D014638:Vanadates / Q000737:chemistry*
D014638:Vanadates; C023506:Glass ceramics; C026660:tellurous acid; D013691:Tellurium