Abstract
Negative ion photoelectron spectra of the solvated anion clusters O−(Ar)n=1–26,34 have been recorded. Vertical detachment energies obtained from the cluster anion spectra were used to determine total as well as stepwise stabilization energies. An examination of these energetic values as a function of cluster size demonstrates that the first solvation shell closes at n=12. Furthermore, magic numbers in the energetic data and in the mass spectrum suggest O−(Ar)n clusters of sizes n=12–34 are structurally very similar to homogeneous rare gas clusters and follow a polyicosahedral packing pattern, implying O−(Ar)12 has an icosahedral structure and O−(Ar)18 has a double icosahedral structure. The solvated cluster anion photoelectron data were also analyzed using a generalized cluster size equation, which relates the cluster anion data to bulk parameters. The data for O−(Ar)n≥12 is well represented by the theoretical prediction and was therefore used to estimate several bulk parameters, including the photoemission threshold, the photoconductivity threshold, and the bulk solvation energy.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 8:32 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 10, 2024, 4:03 p.m.) |
Indexed | 1 month, 4 weeks ago (July 3, 2025, 3:32 a.m.) |
Issued | 30 years, 8 months ago (Jan. 1, 1995) |
Published | 30 years, 8 months ago (Jan. 1, 1995) |
Published Print | 30 years, 8 months ago (Jan. 1, 1995) |
@article{Arnold_1995, title={Photoelectron spectroscopy of the solvated anion clusters O−(Ar)n=1–26,34: Energetics and structure}, volume={102}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.469415}, DOI={10.1063/1.469415}, number={1}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Arnold, Susan T. and Hendricks, Jay H. and Bowen, Kit H.}, year={1995}, month=jan, pages={39–47} }