Spectroscopy and photochemistry in cryogenic solutions
Ultraviolet and infrared spectra are presented for CO/sub 2/, CH/sub 2/O, CD/sub 2/O, CCl/sub 2/F/sub 2/, C/sub 2/H/sub 3/Cl, CH/sub 3/OH, and OsO/sub 4/ dissolved in liquified Xe, Kr, Ar, or air, and SeF/sub 6/ dissolved in solid Xe. The infrared absorption features in the liquid solutions are narrower than the corresponding gas phase vibrational bands but broader than rotational lines. Absorption bands in the solids are narrower than in the liquids. Absorption bands in SeF/sub 6/ exhibit the Se-isotope splittng. The frequencies of the absorption features are observed to shift with solvent, temperature, and isotopic composition. High solute densities (10/sup 17/ to 10/sup 19/ molecules/cm/sup 3/) are obtainable. Some unstable compounds, such as CH/sub 2/O monomer at 10/sup 18/ molecules/cm/sup 3/, form stable cryogenic solutions. Cryogenic solutions are shown to be useful for spectroscopic detection of parts per million to parts per billion impurities in gases and for photochemically induced istope separation.
- Research Organization:
- Los Alamos Scientific Lab., NM
- OSTI ID:
- 6065411
- Journal Information:
- Proc. Soc. Photo-Opt. Instrum. Eng.; (United States), Journal Name: Proc. Soc. Photo-Opt. Instrum. Eng.; (United States) Vol. 158; ISSN SPIEC
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
400500 -- Photochemistry
AIR
ALCOHOLS
ALDEHYDES
ARGON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHLORINATED ALIPHATIC HYDROCARBONS
COMPARATIVE EVALUATIONS
DATA
DEUTERIUM
DEUTERIUM COMPOUNDS
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
FLUORIDES
FLUORINATED ALIPHATIC HYDROCARBONS
FLUORINE COMPOUNDS
FORMALDEHYDE
GASES
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROXY COMPOUNDS
INFORMATION
INFRARED SPECTRA
ISOTOPE EFFECTS
ISOTOPES
KRYPTON
LIGHT NUCLEI
LIQUIDS
LOW PRESSURE
LOW TEMPERATURE
METHANOL
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OSMIUM COMPOUNDS
OSMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PRESSURE DEPENDENCE
RARE GASES
SELENIUM COMPOUNDS
SELENIUM FLUORIDES
SOLIDS
SPECTRA
SPECTRAL SHIFT
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
TRACE AMOUNTS
TRANSITION ELEMENT COMPOUNDS
ULTRAVIOLET SPECTRA
XENON