combination band
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2021 ◽  
Vol 11 (16) ◽  
pp. 7683
Author(s):  
Timur Aminev ◽  
Irina Krauklis ◽  
Oleg Pestsov ◽  
Alexey Tsyganenko

The adsorption of different isotopic ozone mixtures on TiO2 at 77K was studied using FTIR spectroscopy and DFT calculations of cluster models. In addition to weakly bound ozone with band positions close to those of free or dissolved molecules, the spectrum of chemisorbed species was observed. The splitting of the ν1+3 combination band to eight maxima due to different isotopomers testified to the loss of molecule symmetry. The frequencies of all the isotopic modifications of the ozone molecules which form monodentate or bidentate complexes with four- or five-coordinated titanium atoms were calculated and compared with those of experimentally observed spectra. The four considered complexes adequately reproduced the splitting of the ν1+3 vibration band and the lowered anharmonism of chemisorbed O3. The energetically most favorable monodentate complex with four-coordinated titanium atoms showed good agreement with the observed spectra, although a large difference between the frequencies of ν1 and ν3 modes was found. For better coherence with the experiment, the interaction of the molecule with adjacent cations must be considered.


2020 ◽  
Vol 11 (23) ◽  
pp. 10067-10072
Author(s):  
Qian-Rui Huang ◽  
Ying-Cheng Li ◽  
Tomoki Nishigori ◽  
Marusu Katada ◽  
Asuka Fujii ◽  
...  

2019 ◽  
Vol 19 (17) ◽  
pp. 7347-7354
Author(s):  
Pauline John ◽  
Nilesh J. Vasa ◽  
N. Sujatha ◽  
Suresh Ranga Rao

2019 ◽  
Vol 158 (1) ◽  
pp. 17
Author(s):  
S. C. Tegler ◽  
T. D. Stufflebeam ◽  
W. M. Grundy ◽  
J. Hanley ◽  
S. Dustrud ◽  
...  

2018 ◽  
Vol 148 (11) ◽  
pp. 114303 ◽  
Author(s):  
M. Siciliani de Cumis ◽  
R. Eramo ◽  
N. Coluccelli ◽  
G. Galzerano ◽  
P. Laporta ◽  
...  

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