Infrared Spectroscopic Evidence for Protonated Water Clusters Forming Nanoscale Cages

doi:10.1126/science.1096037

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304/5674/1134 (most recent)
1096037v1

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Published Online April 29, 2004
Science DOI: 10.1126/science.1096037

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Submitted on January 26, 2004
Accepted on March 19, 2004

Infrared Spectroscopic Evidence for Protonated Water Clusters Forming Nanoscale Cages

Mitsuhiko Miyazaki ¹, Asuka Fujii ¹^*, Takayuki Ebata ¹, Naohiko Mikami ¹^*

¹ Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.

^* To whom correspondence should be addressed.
Asuka Fujii , E-mail: asuka{at}qclhp.chem.tohoku.ac.jp
Naohiko Mikami , E-mail: nmikami{at}qclhp.chem.tohoku.ac.jp

Size-dependent development of the hydrogen bond network structurein large-sized clusters of protonated water, H⁺(H₂O)_n (n = 4to 27), was probed by infrared spectroscopy of OH stretches.Spectral changes with cluster size demonstrate that the chainstructures at small sizes (n <~ 10) develop into two-dimensionalnet structures (~10 < n < 21), and then into nanometer-scaledcages (n $>=$ 21).

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REPORTS Infrared Signature of Structures Associated with the H⁺(H₂O)_n (n = 6 to 27) Clusters: J.-W. Shin, N. I. Hammer, E. G. Diken, M. A. Johnson, R. S. Walters, T. D. Jaeger, M. A. Duncan, R. A. Christie, and K. D. Jordan (21 May 2004)
Science 304 (5674), 1137. [DOI: 10.1126/science.1096466]
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PERSPECTIVES CHEMISTRY: Enhanced: The Structure of Protonated Water Clusters: Timothy S. Zwier (21 May 2004)
Science 304 (5674), 1119. [DOI: 10.1126/science.1098129]
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