ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTime-dependent mass spectra and breakdown graphs. 12. Competitive dissociative isomerizations of the 2,4-hexadiyne cationN. Ohmichi, Y. Malinovich, J. P. Ziesel, and C. LifshitzCite this: J. Phys. Chem. 1989, 93, 6, 2491–2495Publication Date (Print):March 1, 1989Publication History Published online1 May 2002Published inissue 1 March 1989https://pubs.acs.org/doi/10.1021/j100343a051https://doi.org/10.1021/j100343a051research-articleACS PublicationsRequest reuse permissionsArticle Views47Altmetric-Citations11LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
Doubly charged N22+ ions were produced by double photoionization of neutral nitrogen molecules with the synchrotron radiation from ACO as a photon source of variable energy in the 40–70 eV range. From the double photoionization spectrum the threshold energy of the stable X 1Σg+ state was found at 43.1 ± 0.1 eV. The D 1Σg+ → X 1Σg+ emission observed by using a photoion-photon of fluorescence coincidence (PIFCO) experiment. The onset energy of this emitting D 1Σu+ state at 50.5 eV, was deduced from the variation of the fluorescence efficiency as a function of the excitation photon energy. The lifetime of this emitting state was measured to be τ = 8 ± 3 ns.
The decarbonylation of the tropone radical cation has been studied by time-resolved photoionization mass spectrometry (TPIMS) and time-resolved ion momentum spectrometry (TRIMS). Experimental photoionization efficiency curves at t = 6 μs and 2 ms were modelled by RRKM/QET calculations. The critical energy of activation (E0) was determined to be 83.9 ± 5 kJmol. The reactant C7H6O+ is less stable than the products C6H6+ +CO, and the reaction possesses a reverse activation energy of 128 kJmol which results in a large kinetic energy release.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTime-dependent mass spectra and breakdown graphs. 7. Time-resolved photoionization mass spectrometry of iodobenzene. The heat of formation of phenyl cationY. Malinovich and C. LifshitzCite this: J. Phys. Chem. 1986, 90, 10, 2200–2203Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published inissue 1 May 1986https://doi.org/10.1021/j100401a040Request reuse permissionsArticle Views101Altmetric-Citations29LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (505 KB) Get e-Alerts
Chemischer InformationsdienstVolume 17, Issue 42 Physical Inorganic Chemistry ChemInform Abstract: Discovery of an Emission in NO2+ (by using a new photoion-photon of fluorescence coincidence experiment). M. J. BESNARD, M. J. BESNARDSearch for more papers by this authorL. HELLNER, L. HELLNERSearch for more papers by this authorY. MALINOVICH, Y. MALINOVICHSearch for more papers by this authorG. DUJARDIN, G. DUJARDINSearch for more papers by this author M. J. BESNARD, M. J. BESNARDSearch for more papers by this authorL. HELLNER, L. HELLNERSearch for more papers by this authorY. MALINOVICH, Y. MALINOVICHSearch for more papers by this authorG. DUJARDIN, G. DUJARDINSearch for more papers by this author First published: October 21, 1986 https://doi.org/10.1002/chin.198642003AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume17, Issue42October 21, 1986 RelatedInformation
Doubly charged NO++ ions were produced by double photoionization of neutral nitric oxide molecules with the synchrotron radiation from ACO as a photon source of variable energy in the 35–68 eV range. Two stable states of NO++ were observed in the double photoionization spectrum with energies of 38.6 and 40.0 eV. An emission from NO++ was discovered by using a new photoion–photon of fluorescence coincidence (PIFCO) experiment. The fluorescence efficiency was measured as a function of the excitation energy, indicating that the emitting state, whose onset energy was observed at 42.5 eV, is a stable or slowly predissociating state of NO++. On the basis of the comparison with calculated energies, the three stable states of NO++ with energies at 38.6, 40.0, and 42.5 eV were assigned to, respectively, the X 2Σ+, A 2Π, and B 2Σ+ electronic states. The detected emission was ascribed to a B 2Σ+→X 2Σ+ emission around 3170 Å.
Chemischer InformationsdienstVolume 17, Issue 38 Physical Organic Chemistry ChemInform Abstract: Time-Dependent Mass Spectra and Breakdown Graphs. Part 7. Time-Resolved Photoionization Mass Spectrometry of Iodobenzene. Y. MALINOVICH, Y. MALINOVICHSearch for more papers by this authorC. LIFSHITZ, C. LIFSHITZSearch for more papers by this author Y. MALINOVICH, Y. MALINOVICHSearch for more papers by this authorC. LIFSHITZ, C. LIFSHITZSearch for more papers by this author First published: September 23, 1986 https://doi.org/10.1002/chin.198638047AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume17, Issue38September 23, 1986 RelatedInformation
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTime-dependent mass spectra and breakdown graphs. 8. Dissociative photoionization of phenolY. Malinovich and C. LifshitzCite this: J. Phys. Chem. 1986, 90, 18, 4311–4317Publication Date (Print):August 1, 1986Publication History Published online1 May 2002Published inissue 1 August 1986https://pubs.acs.org/doi/10.1021/j100409a018https://doi.org/10.1021/j100409a018research-articleACS PublicationsRequest reuse permissionsArticle Views74Altmetric-Citations12LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTime-dependent mass spectra and breakdown graphs. 6. Slow unimolecular dissociation of bromobenzene ions at near threshold energiesY. Malinovich, R. Arakawa, G. Haase, and Chava LifshitzCite this: J. Phys. Chem. 1985, 89, 11, 2253–2260Publication Date (Print):May 1, 1985Publication History Published online1 May 2002Published inissue 1 May 1985https://doi.org/10.1021/j100257a021Request reuse permissionsArticle Views73Altmetric-Citations53LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (933 KB) Get e-Alerts
Ion trapping techniques are employed to determine time-resolved ionization efficiency curves, appearance energies and breakdown curves. Space charge trapping is employed for electron impact ionization while a cylindrical ion trap (CIT) is employed for photoions. Experimental data are analyzed by comparison with QET calculations. Recent efforts have concentrated on C8H8 isomers. The reaction, C8H8+ → C6H6+ + C2H2, whose thermochemistry is known, has been studied to determine the experimental detection limits and the applicability of transition state models. Kinetic shift studies of C8H8+ → C8H7+ + H. provide a new value for δHf(C8H7+).
