Isotopically selective dissociation of COCl/sub 2/ molecules in the radiation field of a pulsed CO laser

Journal Article · Wed Jan 01 00:00:00 EST 1986 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1986v016n01ABEH005250· OSTI ID:5889925

Abzianidze, T G; Baranov, V Y; Bakhtadze, A B; Belykh, A D; Vetsko, V M; Gurashvili, V A; Egiazarov, A S; Izyumov, S V; Kuz'menko, V A; Oziashvili, E D

The first report is given of attainment of isotopically selective dissociation of carbonyl chloride COCl/sub 2/ molecules by radiation from a pulsed tunable uncooled electron-beam-controlled CO laser. Carbonyl chloride was labeled with /sup 13/C and /sup 18/O and the isotopic ratio was /sup 12/C/sup 16/OCl/sub 2/: /sup 13/C/sup 16/OCl/sub 2/:/sup 12/C/sup 18/OCl/sub 2/ = 1:1:0.1, which made it possible to observe simultaneously the selectivity in respect of carbon and oxygen in the product (CO). The dissociation was produced by laser pulses of 0.5--1 J energy (energy density approx.5 J/cm/sup 2/) and of approx.5 ..mu..sec duration at half-intensity. The dependences of the selectivity ..cap alpha.. and of the dissociation yield on the pressure of the substance was studied in the course of irradiation of COCl/sub 2/ at the frequency corresponding to the P/sub 10/(22) (..nu.. = 1822.0 cm/sup -1/) transition in the CO laser. The selectivity in respect of the carbon /sup 12/C and oxygen /sup 16/O was the same, and it fell on increase in the pressure p of COCl/sub 2/. The maximum value of ..cap alpha..roughly-equal4 was obtained at p = 0.5 Torr.

• Research Organization: V. I. Lenin State University, Tashkent
• OSTI ID: 5889925
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Vol. 16:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON 13
LASER ISOTOPE SEPARATION
OXYGEN 18
PHOSGENE
DISSOCIATION
CARBON MONOXIDE LASERS
LASER RADIATION
CARBON ISOTOPES
CARBONIC ACID DERIVATIVES
ELECTROMAGNETIC RADIATION
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
GAS LASERS
ISOTOPE SEPARATION
ISOTOPES
LASERS
LIGHT NUCLEI
NUCLEI
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN ISOTOPES
RADIATIONS
SEPARATION PROCESSES
STABLE ISOTOPES
400303* - Organic Chemistry- Isotope Exchange & Isotope Separation- (-1987)