ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntermolecular and intramolecular excited-state electron transfer involving electrode-confined rhenium carbonyl complexes: toward molecule-based systems for light absorption, charge separation, and optical energy conversionCharles S. Christ Jr., Jie Yu, Xiaohong Zhao, G. Tayhas R. Palmore, and Mark S. WrightonCite this: Inorg. Chem. 1992, 31, 22, 4439–4440Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published inissue 1 October 1992https://pubs.acs.org/doi/10.1021/ic00048a003https://doi.org/10.1021/ic00048a003research-articleACS PublicationsRequest reuse permissionsArticle Views188Altmetric-Citations27LEARN 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 optionsGet e-Alertsclose Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLecture demonstration of X-rays and cathode raysCharles Christ Cite this: J. Chem. Educ. 1942, 19, 11, 548Publication Date (Print):November 1, 1942Publication History Received3 August 2009Published online1 November 1942Published inissue 1 November 1942https://doi.org/10.1021/ed019p548Request reuse permissions Article Views47Altmetric-Citations-LEARN 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 (658 KB) Get e-Alertsclose Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGas-phase reactions of bis(.eta.5-cyclopentadienyl)methylzirconium1+ with dihydrogen, ethylene, and propyleneCharles S. Christ, John R. Eyler, and David E. RichardsonCite this: J. Am. Chem. Soc. 1988, 110, 12, 4038–4039Publication Date (Print):June 1, 1988Publication History Published online1 May 2002Published inissue 1 June 1988https://pubs.acs.org/doi/10.1021/ja00220a053https://doi.org/10.1021/ja00220a053research-articleACS PublicationsRequest reuse permissionsArticle Views114Altmetric-Citations33LEARN 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 optionsGet e-Alertsclose Get e-Alerts
Energy and electron transfer processes at the surface-electrolyte interface were studied using monolayers of Re(I) carbonyl complexes chemically immobilized on gold surfaces. Cyclic voltammetry, Chromoamperometry, grazing-angle specular-reflectance infrared spectroscopy and fluorescence spectroscopy were used to characterize the complexes and explore the rates of energy transfer to the gold surfaces.
Recent thermochemical results from gas-phase ion cyclotron resonance studies of organometallic compounds and coordination complexes are summarized. Reactions of dihydrogen, alkenes, alkynes, nitriles, and other substrates with d0 Cp2ZrCH3+(g) and d1 Cp2Zr+(g) lead to estimates for minimum differences in dissociation enthalpies for various Zr-R bonds. Appearance potential studies have been used to provide a preliminary estimate of D(Cp2Zr+-CH3). Gas-phase charge-transfer bracketing and equilibrium methods have been used to determine the adiabatic free energies of electron attachment to species such as metallocenium ions (Cp2M+(g)), Cp2Ni(g), M(acetylacetonate)3(g), and M(hexafluoroacetylacetonate)3(g). When combined with other data in thermochemical cycles, these results can be used to obtain values for average gas-phase metal-ligand bond dissociation enthalpies and solvation free energies for organometallic ions and coordination complex ions.
Summary form only given. Modern flash X-ray systems employing electron linear induction accelerators require focal spot sizes of order 1 mm diameter incident on high-Z Bremsstrahlung targets. Typical beam parameters are in the range of several kiloamperes, tens of MeV with pulse lengths of order 50 ns. A single pulse with these parameters is so intense that it converts the target material into a hot plasma with velocities on the order of several centimeters per microsecond. Intense axial electric fields will exist on the target surface which may lead to the extraction of light contaminant ions. These ions can travel upstream where they will act as an electrostatic lens which can cause a time varying disruption of the focal spot. Experimental and theoretical work on this backstreaming ion mechanism will be presented along with issues for multiple pulse operation.
The kinetics of gas-phase electron transfer reactions for a variety of metal-containing reactants have been studied by using Fourier transform ion cyclotron resonance mass spectrometry. Classes of ion/molecule processes studied include both self-exchange (thermoneutral) and exoergic cross reactions. The molecules investigated include metallocenes and octahedral coordination complexes of the transition elements. In a few cases, direct comparisons of condensed-phase and gas-phase reactivities can be made. The experiments with octahedral coordination complexes are the first studies of Werner-type metal complexes in electron-transfer reactions in the gas phase. Simple theoretical models involving unimolecular rate theory, classical reorganization barriers, and quantum mechanical approaches are used to rationalize the dependence of the overall rates of these reactions on the molecular properties of the reactants. In particular, the role of Franck–Condon factors in charge-transfer reactions is examined, and theoretically estimated factors are compared with experiment for a typical metallocene, ferrocene.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGas-phase electron transfer: thermal self-exchange and cross reactions of organometallic molecules and ionsDavid E. Richardson, Charles S. Christ, Paul Sharpe, and John R. EylerCite this: J. Am. Chem. Soc. 1987, 109, 13, 3894–3902Publication Date (Print):June 1, 1987Publication History Published online1 May 2002Published inissue 1 June 1987https://pubs.acs.org/doi/10.1021/ja00247a012https://doi.org/10.1021/ja00247a012research-articleACS PublicationsRequest reuse permissionsArticle Views136Altmetric-Citations19LEARN 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 optionsGet e-Alertsclose Get e-Alerts
