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Originally published in Science Express on 29 April 2004
Science 21 May 2004:
Vol. 304. no. 5674, pp. 1134 - 1137
DOI: 10.1126/science.1096037
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Reports

Infrared Spectroscopic Evidence for Protonated Water Clusters Forming Nanoscale Cages

Mitsuhiko Miyazaki, Asuka Fujii,* Takayuki Ebata, Naohiko Mikami*

Size-dependent development of the hydrogen bond network structure in largesized clusters of protonated water, H+(H2O)n (n = 4 to 27), was probed by infrared spectroscopy of OH stretches. Spectral changes with cluster size demonstrate that the chain structures at small sizes (n 10) develop into two-dimensional net structures (~10 < n < 21), and then into nanometer-scaled cages (n >= 21).

Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.

* To whom correspondence should be addressed. E-mail: asuka{at}qclhp.chem.tohoku.ac.jp (A.F.), nmikami{at}qclhp.chem.tohoku.ac.jp (N.M.)

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Sequential Proton Transfer Through Water Bridges in Acid-Base Reactions.
O. F. Mohammed, D. Pines, J. Dreyer, E. Pines, and E. T. J. Nibbering (2005)
Science 310, 83-86
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Spectral Signatures of Hydrated Proton Vibrations in Water Clusters.
J. M. Headrick, E. G. Diken, R. S. Walters, N. I. Hammer, R. A. Christie, J. Cui, E. M. Myshakin, M. A. Duncan, M. A. Johnson, and K. D. Jordan (2005)
Science 308, 1765-1769
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