Soft-Landing of Polyatomic Ions at Fluorinated Self-Assembled Monolayer Surfaces
10.1126/science.275.5305.1447
Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

A method of preparing modified surfaces, referred to as soft-landing, is described in which intact polyatomic ions are deposited from the gas phase into a monolayer fluorocarbon surface at room temperature. The ions are trapped in the fluorocarbon matrix for many hours. They are released, intact, upon sputtering at low or high energy or by thermal desorption, and their molecular compositions are confirmed by isotopic labeling and high-resolution mass measurements. The method is demonstrated for various silyl and pyridinium cations. Capture at the surface is favored when the ions bear bulky substituents that facilitate steric trapping in the matrix.

Bibliography

Miller, S. A., Luo, H., Pachuta, S. J., & Cooks, R. G. (1997). Soft-Landing of Polyatomic Ions at Fluorinated Self-Assembled Monolayer Surfaces. Science, 275(5305), 1447–1450.

Authors 4
  1. S. A. Miller (first)
  2. H. Luo (additional)
  3. S. J. Pachuta (additional)
  4. R. G. Cooks (additional)
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  30. Supported by NSF grant CHE-9223791. We thank B. Feng for assistance in the F-SAM surface preparation D. Lantrip for the CAChe simulations G. Chen for the triple-quadrupole data Y. H. Yim for the trifluoromethylbenzoyl data and T. Bein W. N. Delgass B. S. Freiser H. W. Rohrs and V. H. Wysocki for helpful comments.
Dates
Type When
Created 23 years, 1 month ago (July 27, 2002, 5:45 a.m.)
Deposited 1 year, 7 months ago (Jan. 12, 2024, 9:56 p.m.)
Indexed 3 hours, 39 minutes ago (Sept. 2, 2025, 6:35 a.m.)
Issued 28 years, 5 months ago (March 7, 1997)
Published 28 years, 5 months ago (March 7, 1997)
Published Print 28 years, 5 months ago (March 7, 1997)
Funders 0

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@article{Miller_1997, title={Soft-Landing of Polyatomic Ions at Fluorinated Self-Assembled Monolayer Surfaces}, volume={275}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.275.5305.1447}, DOI={10.1126/science.275.5305.1447}, number={5305}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Miller, S. A. and Luo, H. and Pachuta, S. J. and Cooks, R. G.}, year={1997}, month=mar, pages={1447–1450} }