Calculation of absorption contours and excitation selectivity of isotopic molecules 12CO and 13CO for implementation of photocatalytic reactions

• Published in: Protection of metals and physical chemistry of surfaces 2011-07, Vol.47 (4), p.551-554
• Main Authors: Andrienko, O. S., Buchanov, V. V., Dement’eva, D. V., Kazaryan, M. A., Malinovskaya, T. D., Sachkov, V. I., Turubarov, S. V.
• Format: Article
• Language: English
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Corrosion and Coatings; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Investigation Methods for Physicochemical Systems; Materials Science; Metallic Materials; Tribology
• ISSN: 2070-2051; 2070-206X
• DOI: 10.1134/S2070205111030026

The possibilities of the isotope-selective excitation of molecules by CO laser radiation. More specifically, the problem of determining the conditions of the preferable excitation of heavy isotope 3 C 18 O compared to the light isotope 12 C 18 O is set. A carbon monoxide molecule is capable of absorbing at hundreds of vibrational-rotational lines within the principal absorption band of the CO molecule over the 1200–2600 cm −1 range. Since radiation absorption is negligibly low in the frequency range below 1900 cm-1 and there are no appreciably efficient radiation sources over the 2200–2600 cm −1 range in which absorption can be observed, the 1900–2200 cm −1 frequency range is considered in this work. The presented calculations may refer to the selective excitation of the gas phase in bulk and in gas absorbed on the surface.