CHLORINE ISOTOPE ENRICHMENT IN CO2 TEA LASER PHOTOLYSIS OF CF2CL2

被引：15

作者：

HUIE, RE

HERRON, JT

BRAUN, W

TSANG, W

机构：

[1] National Bureau of Standards, Institute for materials Research, Washington

来源：

CHEMICAL PHYSICS LETTERS | 1978年 / 56卷 / 01期

关键词：

D O I：

10.1016/0009-2614(78)80219-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A number of lines from a CO2 TEA laser were used to photolyze CF2Cl2. Enrichment of the 35Cl and 37Cl isotopes in the molecular chlorine formed during the photolysis was observed using a mass spectrometer. Maximum enrichment was about 1.8. The dependence of enrichment on wavelength, reactant concentration, inert gas pressure, and the presence of SiF4 is reported. Of particular interest is the persistence of significant enrichment at pressures up to several hundred torr (≈ 105 Pa). Aside from the practical significance of this enrichment at high pressures, it suggests that there are important contributions from isotopically specific interactions after the laser pulse. © 1978.

引用

页码：193 / 196

页数：4

共 7 条

[1] AKULIN VM, 1976, SOV PHYS JETP, V44, P239
[2] SELECTIVE DISSOCIATION OF POLYATOMIC-MOLECULES BY INTENSE INFRARED-LASER FIELDS
AMBARTZUMIAN, RV
LETOKHOV, VS
[J]. ACCOUNTS OF CHEMICAL RESEARCH, 1977, 10 (02) : 61 - 67
[3] AMBARTZUMIAN RV, 1976, SOV PHYS JETP, V44, P231
[4] FOLCHER G, UNPUBLISHED
[5] GUTMAN D, 1977, J CHEM PHYS, V67, P4291, DOI 10.1063/1.435368
[6] MEGAWATT IR LASER CHEMISTRY OF CCL2F2 DERIVED FROM EXCITATION OF 2 DISTINCT VIBRATIONAL MODES
HILL, GA
GRUNWALD, E
KEEHN, P
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (20) : 6521 - 6526
[7] RITTER JC, UNPUBLISHED

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