G. N. Makarov, D. E. Malinovsky, D. D. Ogurok, "Single Pulse Carbon-13 Enrichment of CF3 Under IR MPD in A Short Gas Dynamic Flow", Laser Chemistry, vol. 17, Article ID 036263, 14 pages, 1998. https://doi.org/10.1155/1998/36263
Single Pulse Carbon-13 Enrichment of CF3 Under IR MPD in A Short Gas Dynamic Flow
An experimental approach is described for obtaining highly enriched residual gas under IR multiphoton dissociation (MPD) of molecules in one cycle of irradiation. The approach is based on utilization of a pulsed molecular flow of small length . The use of a short flow length leads to high values of the dissociation yield of molecules in the whole volume of the flow. Owing to this, high enrichment of the residual gas is achieved in one cycle of irradiation. The isotopically-selective dissociation of CF3I+ in the pulsed gasdynamic flow of a small length was studied. About 400-fold enrichment of the 13C isotope in the residual gas was obtained following irradiation of a molecular flow of CF3I of natural isotope composition by a single laser pulse. The selectivity of dissociation was measured to be
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