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Measurement and assignment of the vibrationally resolved UV absorption spectrum of syn-methyl nitrite isolated in an argon matrix at 12 K

Engert, Jutta M. and Dick, Bernhard (1999) Measurement and assignment of the vibrationally resolved UV absorption spectrum of syn-methyl nitrite isolated in an argon matrix at 12 K. Chemical Physics Letters 299 (5), pp. 423-429.

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Abstract

A mixt. of the syn- and anti-isomers of Me nitrite was deposited into an Ar matrix at 12 K The anti-isomer was subsequently photolyzed by dye-laser excitation into the red tail of the origin line at 26252 cm-1. The origin of the remaining syn-isomer is found at 27361 +- 10 cm-1, and the 1st 5 bands are well fitted with an anharmonic oscillator model with n1=1086 +- 5 cm-1 and xe = 0.0180 +- 0.0003.


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Item type:Article
Date:1999
Additional Information (public):CAN 130:215254 73-4 Optical, Electron, and Mass Spectroscopy and Other Related Properties 7440-37-1 (Argon) Role: NUU (Other use, unclassified), USES (Uses) (matrix; measurement and assignment of vibrationally resolved UV absorption spectrum of syn-Me nitrite isolated in argon matrix at 12 K); 584-08-7 (Potassium carbonate) Role: NUU (Other use, unclassified), USES (Uses) (measurement and assignment of vibrationally resolved UV absorption spectrum of syn-Me nitrite isolated in argon matrix at 12 K); 624-91-9 (Methyl nitrite) Role: PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process) (measurement and assignment of vibrationally resolved UV absorption spectrum of syn-Me nitrite isolated in argon matrix at 12 K); 7632-00-0 (Sodium nitrite); 7664-93-9 (Sulfuric acid) Role: RCT (Reactant), RACT (Reactant or reagent) (measurement and assignment of vibrationally resolved UV absorption spectrum of syn-Me nitrite isolated in argon matrix at 12 K); 7789-75-5 (Calcium fluoride) Role: NUU (Other use, unclassified), USES (Uses) (substrate; measurement and assignment of vibrationally resolved UV absorption spectrum of syn-Me nitrite isolated in argon matrix at 12 K)
Institutions:Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Bernhard Dick
Identification Number:
ValueType
1999:28238Other
Keywords:Anharmonic molecular vibration; Electronic transition; Franck-Condon principle; Morse potential; Photolysis; Rotamers; UV and visible spectra; Vibronic level (measurement and assignment of vibrationally resolved UV absorption spectrum of syn-Me nitrite isolated in argon matrix at 12 K); anharmonic vibration UV absorption spectra methyl nitrite rotamer
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:5535
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