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application/vnd.openxmlformats-officedocument.presentationml.presentation ![]() | Presentation | Microsoft PowerPoint 2007 |
application/pdf ![]() | Abstract |
Description
Title: | Simultaneous deposition of mass selected anions and cations: improvements in ion delivery for matrix isolation experiments |
Author(s): | Goodrich, Michael E. |
Contributor(s): | Moore, David T. |
Subject(s): | Matrix isolation (and droplets) |
Abstract: | A focus of the research in our group has been to develop improved methods for ion delivery in matrix isolation experiments. We have previously reported a method to co-deposit low energy, mass selected metal anions and a rare gas counter cation.$^{a}$ A modification allowing for mass selection of both the anion and cation will be discussed. Results from preliminary experiments of mass selected, low energy Cu$^{-}$ and SF$_{5}$$^{+}$ will also be highlighted. To our knowledge, these experiments are the first time two mass selected beams of ions have been simultaneously deposited into a cryogenic matrix. Co-deposition of the ions into an argon matrix doped with 0.02\% CO at 20K resulted in the observation of bands assigned to SF$_{5}$$^{+}$ and anionic copper carbonyl complexes, Cu(CO)$_{n}$$^{-}$ (n=1-3). Upon irradiation of the matrix with a narrow band, blue LED, the copper carbonyl complexes are converted to the neutral analogues, while the fate of the photodetached electrons can be directly tracked, as a decrease of the SF$_{5}$$^{+}$ band and a growth of the neutral SF$_{5}$ band are observed.
$^{a}$Ludwig, R. M. Moore, D. T. J. Chem. Phys. 139, 244202 (2013). |
Issue Date: | 2016-06-20 |
Publisher: | International Symposium on Molecular Spectroscopy |
Genre: | Conference Paper / Presentation |
Type: | Text |
Language: | En |
URI: | http://hdl.handle.net/2142/91365 |
Rights Information: | Copyright 2016 by the authors |
Date Available in IDEALS: | 2017-01-26 |