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Cover Picture: Energy Transfer in Single Hydrogen‐Bonded Water Molecules (ChemPhysChem 6/2005)
Author(s) -
Bakker Huib J.,
Gilijamse Joop J.,
Lock Anjan J.
Publication year - 2005
Publication title -
chemphyschem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200590009
Subject(s) - molecule , chemistry , delocalized electron , photochemistry , excited state , hydrogen bond , infrared spectroscopy , spectroscopy , solvent , acetone , organic chemistry , atomic physics , physics , quantum mechanics
The cover picture shows a single water molecule that is hydrogen‐bonded (thin blue lines) to two neigboring acetone molecules. Water can enter an apolar solvent such as CCl 4 if it is embedded by amphiphilic acetone molecules. In their Article on page 1146 Bakker et al. show by femtosecond mid‐infrared spectroscopy that the water molecules enter the apolar matrix in the form of particularly hydrogen‐bonded complexes with acetone. The OH stretching vibrations of the water molecule have been excited by an infrared laser pulse. Because the OH vibrations of the water molecule are in resonance, the vibration is delocalized over the molecule.