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Vibrational perturbation: A chemical aid to assignment. I—Fermi resonance in the ν 8 region of isotopic pyridines
Author(s) -
Stidham Howard D.,
Dilella Daniel P.
Publication year - 1979
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.1250080314
Subject(s) - fermi resonance , deuterium , raman spectroscopy , chemistry , hydrogen , resonance (particle physics) , fermi gamma ray space telescope , hydrogen bond , spectral line , analytical chemistry (journal) , nuclear magnetic resonance , atomic physics , molecule , organic chemistry , physics , condensed matter physics , astronomy , optics
Complete Raman data are reported for the ν 1 , ν 6 and ν 8 regions of the vibrational spectra of the C 2ν deuterium‐labeled pyridines and of their water complexes. Raman data are given for frequency shifts observed when some of these pyridines are dissolved in a selection of hydrogen‐bonding solvents. The complicated ν 8 region is afforded definitive assignment based on Fermi resonance between the A 1 component of ν 8 and the A 1 combination tone ν 1 + ν 6 a , as well as on the ways in which these resonances are made or broken when hydrogen‐bonded complexes are formed with the deuterium‐labeled pyridines.