Abstract
We report autodetachment spectra of the mass-selected, anionic water clusters, (H2O)n−, n=2, 3, 5–9, 11 in the OH stretching region (3000–4000 cm−1), and interpret the spectra with the aid of ab initio calculations. For n⩾5, the spectra are structured and are generally dominated by an intense doublet, split by about 100 cm−1, which gradually shifts toward lower energy with increasing cluster size. This behavior indicates that the n=5–11 clusters share a common structural motif. The strong bands appear in the frequency region usually associated with single-donor vibrations of water molecules embedded in extended networks, and theoretical calculations indicate that the observed spectra are consistent with linear “chainlike” (H2O)n− species. We test this assignment by recording the spectral pattern of the cooled (argon solvated) HDO⋅(D2O)5− isotopomer over the entire OH stretching frequency range.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 8:17 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 11, 2024, 12:04 a.m.) |
Indexed | 1 year, 6 months ago (Feb. 14, 2024, 10:42 a.m.) |
Issued | 26 years, 4 months ago (April 1, 1999) |
Published | 26 years, 4 months ago (April 1, 1999) |
Published Print | 26 years, 4 months ago (April 1, 1999) |
@article{Ayotte_1999, title={Infrared spectroscopy of negatively charged water clusters: Evidence for a linear network}, volume={110}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.478531}, DOI={10.1063/1.478531}, number={13}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Ayotte, Patrick and Weddle, Gary H. and Bailey, Christopher G. and Johnson, Mark A. and Vila, Fernando and Jordan, Kenneth D.}, year={1999}, month=apr, pages={6268–6277} }