IR Spectroscopic Study of the Structure of Glasses Based on Titanium Oxyfluoride

Structural investigation of fluorophosphate glasses by 19F, 31P MAS-NMR and IR spectroscopy

“…This concerns the bands located at 530, 770 and 870 cm −1 , respectively attributed to the deformation mode of PO bonds of the Q 2 tetrahedra, the symmetric stretching mode of POP bond dimers Q 2 , and the antisymmetric mode of POP connections between tetrahedra Q 2 . However, the intensity of these bands increases gradually as the fluoride addition increases up 6 ] has actually been observed in fluoride glasses and oxyfluorides, using IR spectroscopy [28,29].…”

Preparation, characterization and photocatalytic activity of BaTiF 6 and BaTiO 3 : A comparative study

“…This peak disappears in BaTiF 6 sample indicating the absence of Ti-O bonds confirming the presence of F. The small peak at 860 cm -1 was attributed to Ti-F vibrations. The characteristic F-Ti-F stretching modes are observed at 450-600 cm -1 for BaTiF 6 photocatalyst [22]. The surface acidity of BaTiF 6 photocatalyst is expected to be higher than BaTiO 3 due to the strong electronegativity of fluorine [23].…”

Nanofabrication of Metal Oxide Nanostructures in Aqueous Solutions

“…The bands observed in the range of 1400-1750 cm -1 were attributed to bending vibrations of O-H 128 . Absorption band in frequency range 600-450 cm -1 were reported to be attributed to stretching vibrations of Ti-F bonds in TiO 2 lattice 129,130 . The bands were observed at 513, 532, 540, 558 or 568 cm -1 from xTiOF 2 · yBaF 2 · zMnF 2 glasses 129 .…”

“…Absorption band in frequency range 600-450 cm -1 were reported to be attributed to stretching vibrations of Ti-F bonds in TiO 2 lattice 129,130 . The bands were observed at 513, 532, 540, 558 or 568 cm -1 from xTiOF 2 · yBaF 2 · zMnF 2 glasses 129 . They indicated that F ions were partially replaced to O ions in the lattice 129 .…”

“…The bands were observed at 513, 532, 540, 558 or 568 cm -1 from xTiOF 2 · yBaF 2 · zMnF 2 glasses 129 . They indicated that F ions were partially replaced to O ions in the lattice 129 . Actually, absorption bands were observed at 455, 488, 505, 520, 552 and 567 cm -1 in the spectra of the multi-needle TiO 2 particles.…”