Deuterium separation by ultraviolet laser dissociation of formaldehyde

作者: L. Mannik , S. K. Brown

DOI: 10.1063/1.330093

关键词:

摘要: Irradiation of natural isotopic abundance formaldehyde with a narrow linewidth ultraviolet laser has yielded high deuterium enrichments (>600 at 5 Torr, 303 K) five wavelengths in the range 340 to 355 nm. The temperature and pressure dependence have been measured for both enrichment selectivity, latter being determined from resolution spectra deuterated formaldehyde. In general, conditions investigated (293–343 K; 2–26 Torr), selectivity are decreasing functions pressure, but certain cases is independent over small range. highest (1110) was 2 293 K, 352.061 results can be explained terms hot bands as well Doppler broadening absorption bands. For all wavelengths, larger than low (<6 yet two equal higher pressure. This...

参考文章(17)
Edward S. Yeung, C. Bradley Moore, Isotopic separation by photopredissociation Applied Physics Letters. ,vol. 21, pp. 109- 110 ,(1973) , 10.1063/1.1654291
John U. White, Long Optical Paths of Large Aperture Journal of the Optical Society of America. ,vol. 32, pp. 285- 288 ,(1942) , 10.1364/JOSA.32.000285
G. D. T. Tejwani, Edward S. Yeung, Pressure‐broadened linewidths of formaldehyde Journal of Chemical Physics. ,vol. 66, pp. 4915- 4918 ,(1977) , 10.1063/1.433830
L Mannik, S.K Brown, G.M Keyser, Deuterium enrichment by ultraviolet laser dissociation of formaldehyde Chemical Physics Letters. ,vol. 81, pp. 587- 590 ,(1981) , 10.1016/0009-2614(81)80469-1
John H. Clark, C. Bradley Moore, Nicholas S. Nogar, The photochemistry of formaldehyde: Absolute quantum yields, radical reactions, and NO reactions The Journal of Chemical Physics. ,vol. 68, pp. 1264- 1271 ,(1978) , 10.1063/1.435848
Mark Waldo Zemansky, Allan C. G. Mitchell, Resonance radiation and excited atoms ,(1934)
James C. Weisshaar, Douglas J. Bamford, Eliot Specht, C. Bradley Moore, Quenching, electronic energy transfer, and rotational relaxation of S1 formaldehyde Journal of Chemical Physics. ,vol. 74, pp. 226- 234 ,(1981) , 10.1063/1.440878