X-ray spectroscopy of liquid water microjets

Kevin R. Wilson, Bruce S. Rude, Tony Catalane, Richard D Schaller, James G. Tobin, Dick T Co, R. J. Saykally

Research output: Contribution to journalArticle

131 Citations (Scopus)

Abstract

We present the first results from studies of liquid water microjets by soft X-ray absorption spectroscopy. Near the oxygen K-edge (∼530 eV) a fine-structure pattern very similar to that found for gaseous water monomers is observed when the surface-selective total ion yield (TIY) is measured, but a broadened and blue-shifted spectrum emerges when detecting the bulk-sensitive total electron yield (TEY). TIY EXAFS measurements produce a nearest neighbor O-O distance for surface molecules (3.00 Å) slightly longer than that of the isolated water dimer (2.98 Å), whereas the O-O distance extracted from TEY EXAFS corresponds to that accepted for bulk water (2.85 Å). Together, these results evidence an equilibrium liquid water surface . dominated by water molecules interacting weakly at longer distances than in the bulk, thus supporting predictions from computer simulations.

Original languageEnglish
Pages (from-to)3346-3349
Number of pages4
JournalJournal of Physical Chemistry B
Volume105
Issue number17
Publication statusPublished - May 3 2001

Fingerprint

X ray spectroscopy
Water
Liquids
liquids
water
spectroscopy
x rays
selective surfaces
Ions
X ray absorption spectroscopy
Molecules
surface water
Electrons
molecules
absorption spectroscopy
ions
electrons
Dimers
monomers
computerized simulation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Wilson, K. R., Rude, B. S., Catalane, T., Schaller, R. D., Tobin, J. G., Co, D. T., & Saykally, R. J. (2001). X-ray spectroscopy of liquid water microjets. Journal of Physical Chemistry B, 105(17), 3346-3349.

X-ray spectroscopy of liquid water microjets. / Wilson, Kevin R.; Rude, Bruce S.; Catalane, Tony; Schaller, Richard D; Tobin, James G.; Co, Dick T; Saykally, R. J.

In: Journal of Physical Chemistry B, Vol. 105, No. 17, 03.05.2001, p. 3346-3349.

Research output: Contribution to journalArticle

Wilson, KR, Rude, BS, Catalane, T, Schaller, RD, Tobin, JG, Co, DT & Saykally, RJ 2001, 'X-ray spectroscopy of liquid water microjets', Journal of Physical Chemistry B, vol. 105, no. 17, pp. 3346-3349.
Wilson KR, Rude BS, Catalane T, Schaller RD, Tobin JG, Co DT et al. X-ray spectroscopy of liquid water microjets. Journal of Physical Chemistry B. 2001 May 3;105(17):3346-3349.
Wilson, Kevin R. ; Rude, Bruce S. ; Catalane, Tony ; Schaller, Richard D ; Tobin, James G. ; Co, Dick T ; Saykally, R. J. / X-ray spectroscopy of liquid water microjets. In: Journal of Physical Chemistry B. 2001 ; Vol. 105, No. 17. pp. 3346-3349.
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