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Probing the Vibrations of Shared, OH + O‐Bound Protons in the Gas Phase
Author(s) -
Moore David T.,
Oomens Jos,
van der Meer Lex,
von Helden Gert,
Meijer Gerard,
Valle Jose,
Marshall Alan G.,
Eyler John R.
Publication year - 2004
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200400062
Subject(s) - diglyme , protonation , chemistry , proton , dimer , hydrogen bond , ether , spectral line , water dimer , gas phase , infrared spectroscopy , crystallography , computational chemistry , molecule , ion , physics , solvent , organic chemistry , nuclear physics , astronomy
Spectral signature of a proton bridge ? Gas‐phase infrared spectra are reported in the range of 500–1800 cm −1 for three species with short, strong hydrogen bonds, namely the proton‐bound dimers of dimethyl ether (shown in the picture) and diethyl ether, and protonated 1,1′‐oxybis[2‐methoxyethane] (diglyme). The spectra are all quite similar, and furthermore they also strongly resemble the spectrum of the proton‐bound water dimer (H 5 O 2 + ), suggesting that there may be a conserved “spectral signature” for a proton bound between two oxygen atoms.