Intramolecular hydrogen bonding. Spectroscopic and theoretical studies of vibrational transitions in dibenzoylmethane enol
作者： Bjarke K.V. Hansen , Morten Winther , Jens Spanget-Larsen
DOI: 10.1016/J.MOLSTRUC.2005.10.051
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摘要: Abstract The vibrational structure of the title compound (DBM) was investigated by FTIR spectroscopy in liquid solutions, linear dichroism (LD) measurements, and Raman spectroscopy. results were supported application theoretical model calculations analyzed with particular attention to possible origin broad, very strong, irregularly shaped absorbance band observed 1700–1400 cm−1 region. orientation factors derived from LD data indicate that rotational dynamics phenyl groups do not contribute significantly broadening band. position two sharp Evans transmission windows near 1580 1500 cm−1 is unaffected deuteration reactive protons DBM. transmissions coincide prominent peaks spectrum can be assigned combinations phenylic modes (9a, 18a) low IR intensity, but large scattering activity.
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