Fragmentation Energetics and Dynamics of the Neutral and Ionized Fluorobenzene·Ar Cluster Studied by Mass Analyzed Threshold Ionization Spectroscopy

Fragmentation Energetics and Dynamics of the Neutral and Ionized Fluorobenzene·Ar Cluster Studied by Mass Analyzed Threshold Ionization Spectroscopy

Mass-analyzed threshold ionization spectroscopy (MATI) was used for a detailed investigation of the dissociation process of a fluorobenzene·Ar complex. The threshold ion spectra were recorded for the fluorobenzene monomer and the fluorobenzene·Ar complex by exciting the chromophore via different vib...

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Veröffentlicht in:Journal of physical chemistry (1952) 1996-12, Vol.100 (51), p.19758-19763
Hauptverfasser: Lembach, Gerhard, Brutschy, Bernhard
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container_title Journal of physical chemistry (1952)
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creator Lembach, Gerhard
Brutschy, Bernhard
description Mass-analyzed threshold ionization spectroscopy (MATI) was used for a detailed investigation of the dissociation process of a fluorobenzene·Ar complex. The threshold ion spectra were recorded for the fluorobenzene monomer and the fluorobenzene·Ar complex by exciting the chromophore via different vibrational states of the S1. The ion state spectra of the (fluorobenzene·Ar)+ cation exhibit significant progressions of the van der Waals bending mode b x , which indicates a significant structural change of the complex upon ionization. The disappearance of the threshold ion signal for a certain excess energy in the complex (fluorobenzene·Ar)+ and the simultaneous appearance of the missing bands in the spectra of the fragment ion give an upper limit for the dissociation energy of the complex in the cationic state. In addition, one feature observed in the fragment ion spectrum of the complex recorded via exciting the S16b state reveals the relatively fast predissociation (
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The threshold ion spectra were recorded for the fluorobenzene monomer and the fluorobenzene·Ar complex by exciting the chromophore via different vibrational states of the S1. The ion state spectra of the (fluorobenzene·Ar)+ cation exhibit significant progressions of the van der Waals bending mode b x , which indicates a significant structural change of the complex upon ionization. The disappearance of the threshold ion signal for a certain excess energy in the complex (fluorobenzene·Ar)+ and the simultaneous appearance of the missing bands in the spectra of the fragment ion give an upper limit for the dissociation energy of the complex in the cationic state. In addition, one feature observed in the fragment ion spectrum of the complex recorded via exciting the S16b state reveals the relatively fast predissociation (&lt;4 ns) of the complex, if the vibrational energy in the S1 state exceeds the binding energy D 1 (D 1 &lt; 302 cm-1).</description><identifier>ISSN: 0022-3654</identifier><identifier>EISSN: 1541-5740</identifier><identifier>DOI: 10.1021/jp9621179</identifier><language>eng</language><publisher>American Chemical Society</publisher><ispartof>Journal of physical chemistry (1952), 1996-12, Vol.100 (51), p.19758-19763</ispartof><rights>Copyright © 1996 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a276t-9c5358231538e36821c50d341f448223bd277bad37a0569c5d496d96e8b836c3</citedby><cites>FETCH-LOGICAL-a276t-9c5358231538e36821c50d341f448223bd277bad37a0569c5d496d96e8b836c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/jp9621179$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/jp9621179$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2765,27076,27924,27925,56738,56788</link.rule.ids></links><search><creatorcontrib>Lembach, Gerhard</creatorcontrib><creatorcontrib>Brutschy, Bernhard</creatorcontrib><title>Fragmentation Energetics and Dynamics of the Neutral and Ionized Fluorobenzene·Ar Cluster Studied by Mass Analyzed Threshold Ionization Spectroscopy</title><title>Journal of physical chemistry (1952)</title><addtitle>J. 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In addition, one feature observed in the fragment ion spectrum of the complex recorded via exciting the S16b state reveals the relatively fast predissociation (&lt;4 ns) of the complex, if the vibrational energy in the S1 state exceeds the binding energy D 1 (D 1 &lt; 302 cm-1).</description><issn>0022-3654</issn><issn>1541-5740</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNptkL1OwzAUhS0EEqUw8AZeGBgC_omdZKxSCpVKqdSK1XISp01J7cp2JNL34FnYeTJSWnViurq63z1H5wBwi9EDRgQ_rrcJJxhHyRnoYRbigEUhOgc9hAgJKGfhJbhybo0QwpTiHvgaWbncKO2lr4yGT1rZpfJV7qDUBRy2Wm72iymhXyk4VY23sv67jY2udqqAo7ox1mRK75RWP98DC9O6cV5ZOPdNUXVE1sJX6RwcaFm3-5fFyiq3MvVR5GA936rcW-Nys22vwUUpa6dujrMPFqOnRfoSTN6ex-lgEkgScR8kOaMsJhQzGivKY4Jzhgoa4jIMY0JoVpAoymRBI4kY7-giTHiRcBVnMeU57YP7g2ze-TqrSrG11UbaVmAk9nWKU50dGxzYqsv2eQKl_RA8ohETi9lchLP0fTiJh2La8XcHXuZOrE1ju_DuH91fQEaFvw</recordid><startdate>19961219</startdate><enddate>19961219</enddate><creator>Lembach, Gerhard</creator><creator>Brutschy, Bernhard</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19961219</creationdate><title>Fragmentation Energetics and Dynamics of the Neutral and Ionized Fluorobenzene·Ar Cluster Studied by Mass Analyzed Threshold Ionization Spectroscopy</title><author>Lembach, Gerhard ; Brutschy, Bernhard</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a276t-9c5358231538e36821c50d341f448223bd277bad37a0569c5d496d96e8b836c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lembach, Gerhard</creatorcontrib><creatorcontrib>Brutschy, Bernhard</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><jtitle>Journal of physical chemistry (1952)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lembach, Gerhard</au><au>Brutschy, Bernhard</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fragmentation Energetics and Dynamics of the Neutral and Ionized Fluorobenzene·Ar Cluster Studied by Mass Analyzed Threshold Ionization Spectroscopy</atitle><jtitle>Journal of physical chemistry (1952)</jtitle><addtitle>J. Phys. Chem</addtitle><date>1996-12-19</date><risdate>1996</risdate><volume>100</volume><issue>51</issue><spage>19758</spage><epage>19763</epage><pages>19758-19763</pages><issn>0022-3654</issn><eissn>1541-5740</eissn><abstract>Mass-analyzed threshold ionization spectroscopy (MATI) was used for a detailed investigation of the dissociation process of a fluorobenzene·Ar complex. The threshold ion spectra were recorded for the fluorobenzene monomer and the fluorobenzene·Ar complex by exciting the chromophore via different vibrational states of the S1. The ion state spectra of the (fluorobenzene·Ar)+ cation exhibit significant progressions of the van der Waals bending mode b x , which indicates a significant structural change of the complex upon ionization. The disappearance of the threshold ion signal for a certain excess energy in the complex (fluorobenzene·Ar)+ and the simultaneous appearance of the missing bands in the spectra of the fragment ion give an upper limit for the dissociation energy of the complex in the cationic state. In addition, one feature observed in the fragment ion spectrum of the complex recorded via exciting the S16b state reveals the relatively fast predissociation (&lt;4 ns) of the complex, if the vibrational energy in the S1 state exceeds the binding energy D 1 (D 1 &lt; 302 cm-1).</abstract><pub>American Chemical Society</pub><doi>10.1021/jp9621179</doi><tpages>6</tpages></addata></record>
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title Fragmentation Energetics and Dynamics of the Neutral and Ionized Fluorobenzene·Ar Cluster Studied by Mass Analyzed Threshold Ionization Spectroscopy
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