Direct measurement of water cluster concentrations by infrared cavity ringdown laser absorption spectroscopy

J. B. Paul; C. P. Collier; R. J. Saykally; J. J. Scherer; A. O'Keefe

doi:10.1021/jp971216z

Direct measurement of water cluster concentrations by infrared cavity ringdown laser absorption spectroscopy

J. B. Paul, C. P. Collier, R. J. Saykally, J. J. Scherer, A. O'Keefe

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228 Scopus citations

Abstract

The recently developed technique of infrared cavity ringdown laser absorption spectroscopy (IR-CRLAS) has been employed in the 3.0 μm region to determine the absolute concentrations of water dimers, trimers, tetramers, and pentamers in a pulsed supersonic expansion for the first time. Additional spectral features are reported, one of which we assign to the bound O-H stretching bands of the hexamer. Additionally, by simple variation of the jet stagnation pressure, the collective O-H stretching absorption from all clusters produced in the expansion was observed to change from that of discrete features of small clusters to band profiles of liquid water and finally to amorphous ice.

Original language	English
Pages (from-to)	5211-5214
Number of pages	4
Journal	Journal of Physical Chemistry A
Volume	101
Issue number	29
DOIs	https://doi.org/10.1021/jp971216z
State	Published - Jul 17 1997
Externally published	Yes

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title = "Direct measurement of water cluster concentrations by infrared cavity ringdown laser absorption spectroscopy",

abstract = "The recently developed technique of infrared cavity ringdown laser absorption spectroscopy (IR-CRLAS) has been employed in the 3.0 μm region to determine the absolute concentrations of water dimers, trimers, tetramers, and pentamers in a pulsed supersonic expansion for the first time. Additional spectral features are reported, one of which we assign to the bound O-H stretching bands of the hexamer. Additionally, by simple variation of the jet stagnation pressure, the collective O-H stretching absorption from all clusters produced in the expansion was observed to change from that of discrete features of small clusters to band profiles of liquid water and finally to amorphous ice.",

author = "Paul, {J. B.} and Collier, {C. P.} and Saykally, {R. J.} and Scherer, {J. J.} and A. O'Keefe",

year = "1997",

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doi = "10.1021/jp971216z",

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AU - Paul, J. B.

AU - Collier, C. P.

AU - Saykally, R. J.

AU - Scherer, J. J.

AU - O'Keefe, A.

PY - 1997/7/17

Y1 - 1997/7/17

N2 - The recently developed technique of infrared cavity ringdown laser absorption spectroscopy (IR-CRLAS) has been employed in the 3.0 μm region to determine the absolute concentrations of water dimers, trimers, tetramers, and pentamers in a pulsed supersonic expansion for the first time. Additional spectral features are reported, one of which we assign to the bound O-H stretching bands of the hexamer. Additionally, by simple variation of the jet stagnation pressure, the collective O-H stretching absorption from all clusters produced in the expansion was observed to change from that of discrete features of small clusters to band profiles of liquid water and finally to amorphous ice.

AB - The recently developed technique of infrared cavity ringdown laser absorption spectroscopy (IR-CRLAS) has been employed in the 3.0 μm region to determine the absolute concentrations of water dimers, trimers, tetramers, and pentamers in a pulsed supersonic expansion for the first time. Additional spectral features are reported, one of which we assign to the bound O-H stretching bands of the hexamer. Additionally, by simple variation of the jet stagnation pressure, the collective O-H stretching absorption from all clusters produced in the expansion was observed to change from that of discrete features of small clusters to band profiles of liquid water and finally to amorphous ice.

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JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 29

ER -

Direct measurement of water cluster concentrations by infrared cavity ringdown laser absorption spectroscopy

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