Optics and Spectroscopy
To authors
Study of vibrational spectra and thermal behavior of sodium fluorocirconate Na5Zr2F13
Didenko N. A. 1, Voit E. I.1
1Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, Russia
Email: evoit@ich.dvo.ru
The structure and thermal stability of the compound Na5Zr2F13 in the range of temperatures 20-800oC was studied by differential thermal and thermogravimetric analysis (DTA-TGA), X-ray diffraction analysis (XRDA) and vibrational spectroscopy.The phase transition to the high-temperature modification α-Na5Zr2F13 with dynamically disordered structure was confirmed. Infrared (IR) spectroscopy and Raman scattering (RS) spectroscopy data of the compound β-Na5Zr2F13 and its decomposition products upon heating were obtained, systematized and generalized. Based on the results of quantum-chemical calculations, the bands in the vibrational spectra of Na5Zr2F13. Keywords: complex zirconium fluorides, sodium fluorocirconates, thermogravimetry, vibrational spectroscopy. DOI: 10.61011/EOS.2023.03.56183.4492-22
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