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Multi‐Channel Raman Matrix Isolation Spectroscopy
Author(s) -
Kornath A.
Publication year - 1997
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199701)28:1<9::aid-jrs55>3.0.co;2-7
Subject(s) - overtone , raman spectroscopy , isotopomers , analytical chemistry (journal) , chemistry , spectroscopy , matrix (chemical analysis) , resolution (logic) , resonance raman spectroscopy , resonance (particle physics) , nuclear magnetic resonance , molecule , optics , spectral line , atomic physics , physics , chromatography , organic chemistry , quantum mechanics , astronomy , artificial intelligence , computer science
An apparatus for Raman spectroscopy on matrix layers at 15 K using the multi‐channel technique [charge coupled device (CCD)] is presented. It allows the detection of isolated species in high dilution without employing the resonance Raman effect. Measurements on 100 μm layers of N 2 , O 2 and CO at 15 K were carried out in the region from 20 to 5000 cm ‐1 with a resolution of 0.25–0.5 cm ‐1 and moderate integration times (10–300 s). Besides the detection of the first overtone, a high signal‐to‐noise ratio is demonstrated by the observation of the natural isotopomers with an abundance down to 0.04%. In case of oxygen, the phenomena of molecular rotation and an isotopic effect have been observed. © 1997 by John Wiley & Sons, Ltd.