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Raman and far‐infrared spectra of crystalline formaldehyde, H 2 CO and D 2 CO
Author(s) -
Weng S. X.,
Anderson A.,
Torrie B. H.
Publication year - 1989
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/jrs.1250201207
Subject(s) - raman spectroscopy , infrared , formaldehyde , chemistry , analytical chemistry (journal) , deuterium , infrared spectroscopy , crystal (programming language) , molecular vibration , spectral line , far infrared , crystal structure , nuclear magnetic resonance , molecular physics , crystallography , atomic physics , optics , physics , organic chemistry , astronomy , computer science , programming language
Raman and far‐infrared spectra of crystalline formaldehyde and its fully deuterated analogue have been recorded over the frequency range 25–350 cm −1 and at temperatures of 80 and 20 K; 16 Raman and 8 far‐infrared lattice peaks have been resolved. Isotopic frequency shifts together with inertia and intensity arguments are used to assign the peaks. Raman spectra of the internal vibrational modes of solid formaldehyde are also presented, with several crystal field splittings observed. The results are consistent with a group theoretical analysis based on the molecular and crystal symmetries.