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research article
A direct measurement of the dissociation energy of water
We have performed a direct measurement of one of the most fundamental thermochemical values: the O-H bond energy in water. Using a triple-resonance laser excitation scheme, we excite the molecule through a series of vibrational overtone transitions to access directly the onset of the dissociative continuum. The disociation energy obtained from our experiments, 41145.94±0.15 cm-1, is ~30 times more accurate than the currently accepted value and has important implications for other thermochemical quantities linked to the bond energy of water.
Type
research article
Web of Science ID
WOS:000242002400001
Authors
Publication date
2006
Published in
Volume
125
Issue
18
Article Number
181101
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 17, 2006
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