Isotope enrichment during the formation of water clusters in supersonic free jet expansions. [p]
Presently, investigation of the dynamics, energetics, and structure of microscopic molecular clusters constitutes an active area of research in chemical physics. Herein the RRKM theory of primary isotope effects is extended to qualitatively predict isotope enrichment in water cluster formation. The theoretical model is verified experimentally by neutral free jet expansion modulated molecular beam mass spectrometry of mixed (H/sub 2/O)/sub m/(D/sub 2/O)/sub n/ clusters. The results further support the previously presented mechanism for neutral cluster growth in free jet expansions. The observed enrichment factors (approx.30%) suggest that techniques involving clustering may find practical applications in the area of isotope separation.
- Research Organization:
- Department of Chemistry and Chemical Physics Laboratory C.I.R.E.S., University of Colorado, Boulder, Colorado 80309
- OSTI ID:
- 5641418
- Journal Information:
- J. Chem. Phys.; (United States), Vol. 78:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DEUTERIUM
ISOTOPE SEPARATION
WATER
AGGLOMERATION
EXPANSION
JETS
MASS SPECTROSCOPY
MOLECULAR BEAMS
BEAMS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SPECTROSCOPY
STABLE ISOTOPES
400203* - Isotope Exchange & Isotope Separation- (-1987)