| Magnetic Circular Dichroism and Absorption Spectra of Methylidyne in a Krypton Matrix. | |
MedLine Citation:
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PMID: 21721516 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Electronic absorption and magnetic circular dichroism spectra are reported for the A 2Δ, B 2Σ- and C 2Σ+ ← X 2Π transitions of methylidyne (CH) radicals isolated in a Kr matrix at cryogenic temperatures. The results are interpreted in the framework of a model in which the X 2Π term is split by combination of spin-orbit and crystal-field interactions with the atoms of the host matrix. Analysis of the zeroth moments of the spectra yields an empirical spin-orbit coupling constant AΠ = 11 ± 2 cm-1 and orbital reduction factor κ = 0.26 ± 0.05, corresponding to a crystal-field splitting of VΠ = 43 ± 10 cm-1 for the X 2Π term. For the A 2Δ excited-state term, analysis of the first MCD moments gives a spin-orbit coupling constant of AΔ = 4.4 ± 0.9 cm-1. |
Authors:
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Jeremy J Harrison; Bryce Elliot Williamson |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-1 |
Journal Detail:
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Title: The journal of physical chemistry. A Volume: - ISSN: 1520-5215 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-4 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9890903 Medline TA: J Phys Chem A Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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