Nitroimidazolic radiosensitizers investigated by electrospray ionization time-of-flight mass spectrometry and density functional theory. Kimberly S. F. Lau, Martin Sadilek, Gamal E. Khalil, Martin Gouterman. Dissociation rate, fluorescence and Infrared radiative cooling rates of Naphthalene studied in electrostatic storage Miniring. It models the dissociative photoionization process in the threshold PEPICO expt. Ervin, Kent M.; Ramond, Tanya M.; Davico, Gustavo E.; Schwartz, Rebecca L.; Casey, Sean M.; Lineberger, W. Carl. Aki Honda, Yoshio Suzuki, Koji Suzuki. Van Berkel, Vilmos Kertesz, Michael J. Ford. Nanoelectrospray Ionization of Protein Mixtures: Solution pH and Protein pI. On-Line Investigation of the Generation of Nonaqueous Intermediate Radical Cations by Electrochemistry/Mass Spectrometry. Facile pentagon formation in the dissociation of polyaromatics. International Journal of Mass Spectrometry and Ion Processes. 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Photoion mass spectrometry was used to study the fragmentation of naphthalene and azulene monocations over the excitation energy range 7-22 eV. The new isomeric distribution was detected in a downstream position using resonant-2-photon ionization spectroscopy. Michel PRUDENT, Manuel A. MÉNDEZ, Hubert H. GIRAULT. TRPD of the 1-bromonaphthalene ion gave rate consts. http://pubs.acs.org/page/copyright/permissions.html. Andras Bodi, Katrin Lilja Sigurdardottir, Ágúst Kvaran, Ragnar Bjornsson, and Ingvar Arnason . Studying the reducing potencies of antioxidants with the electrochemistry inherently present in electrospray ionization-mass spectrometry. Appearance potentials detd. Effects of halo substituents on electron-impact induced fragmentation of cyclopropanes. Electrochemical oxidation and nucleophilic addition reactions of metallocenes in electrospray mass spectrometry. is insufficient to model the peak shapes explicitly, the center of mass of the peaks can be used to obtain the rate consts. Willem J. Bouma, Dieter Poppinger, Leo Radom. For permission to reproduce, republish and value of center-of-mass collision energy were the same. 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. Learn more. ASS S. Pandeti, L. Feketeová, T. J. Reddy, H. Abdoul-Carime, B. Farizon, M. Farizon, T. D. Märk. Hannah Simon, Christoph A. Wehe, Betina Pajaziti, Lothar Heinrich, Uwe Karst. Micro-electrospray mass spectrometry: Ultra-high-sensitivity analysis of peptides and proteins. Etude en Spectrométrie de Masse. Bodi, A.; Brannock, M. D.; Sztaray, B.; Baer, T. Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Montgomery, J. = 4–6) and C The single-start/multiple-stop setup, based on a time-to-digital converter and the 1st choice in today's similar coincidence expts., performs significantly better at high count rates, but its performance is still hampered if the time-of-flight range is large, and the false coincidence background is variable if the event frequency and the collection efficiency of the starts are both high. The photoionization mass spectra at 20.58 eV are quasi-identical for the two isomers. A. S. Cavaleiro, A. J. Ferrer-Correia, Olga V. Nemirovskiy. While the exptl. vibrations having b1g symmetry indicating that the ionization transition gains significant intensity through a vibronic coupling mechanism between the 2 lowest doublet cationic states. Characterization of Vanadyl and Nickel Porphyrins Enriched from Heavy Residues by Positive-Ion Electrospray Ionization FT-ICR Mass Spectrometry. The authors declare no competing financial interest. John F. Leite, Dennis A. Dougherty, Henry A. Lester, Mona Shahgholi. The American Chemical Society holds a copyright ownership interest in any copyrightable Supporting Internal energy selection in vacuum ultraviolet photoionization of ethanol and ethanol dimers. Electrochemical origin of radical cations observed in electrospray ionization mass spectra. in the interstellar medium. Electrospray ionization (ESI) tandem mass spectrometric analysis of meso-tetrakis(heptafluoropropyl)porphyrin. An astrophys. David A. Laude, Carolyn L. Johlman, Robert S. Brown, David A. Weil, Charles L. Wilkins. Alexander K. Lemmens, Daniël B. Rap, Johannes M. M. Thunnissen, Bryan Willemsen, Anouk M. Rijs. Threshold regions for each mol. This energy range is lower that the double ionization threshold around 21 eV. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. preferably through the pentalene channel. Naphthalene and phenanthrene, https://chemport.cas.org/services/resolver?origin=ACS&resolution=options&coi=1%3ACAS%3A528%3ADyaK2cXotVKg&md5=3799b0ebf0991d548593cf8ba17ce579, The photofragmentation of naphthalene and azulene monocations in the energy range 7-22 eV, https://chemport.cas.org/services/resolver?origin=ACS&resolution=options&coi=1%3ACAS%3A528%3ADyaK3sXhsVOjtL0%253D&md5=d183459d7ac95f87e7ac5d5aacd7ebbb, Deuterium isotope effects in the photofragmentation of naphthalene monocations, https://chemport.cas.org/services/resolver?origin=ACS&resolution=options&coi=1%3ACAS%3A528%3ADyaK3sXhtVWns78%253D&md5=369dbbfaaa2777b5821419232b1a8034, Internal Energy Distributions Resulting from Sustained Off-Resonance Excitation in Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. The first secondary channel, C, The consecutive H-loss activation energies provide an initial C–H bond strength in the ion of 405 ± 4 kJ mol, The activation energies, combined with the accurate ionization energy of naphthalene (8.1442 ± 0.0009 eV), The additional 3.20 eV for the second H-loss (AE, The dissociation of internal energy-selected ionized naphthalene has been investigated with the use of imaging photoelectron photoion coincidence spectroscopy. Field, J.T. (1989) are discussed. Unimolecular reaction energies for polycyclic aromatic hydrocarbon ions. M. Scott. Zur Analytik von Kohlenwasserstoffen mit Hilfe der Massenspektrometrie. hydrocarbons (PAHs) in order to est. Van Berkel, Miguel A. Quinones, and J. Martin E. Quirke. The collision‐induced dissociation (CID) behaviour suggests a general assumption: easily oxidizable compounds (e.g., hydrocarbon polyenes, polycyclic aromatic hydrocarbons, porphyrins etc.) Xianghong Liu, Richard L. Gross, Arthur G. Suits. The ions are accelerated in a relatively low, 40-80 V cm-1 field, which enables the direct measurement of rate consts. Kinetically Labile Equilibrium Shifts Induced by the Electrospray Process. The TRPD results, and the time-resolved PIE curves for the parent, C10H7Br+, and the daughter, C10H7+, were modeled by RRKM calcns. Keiko Miyabayashi, Yasuhide Naito, Mikio Miyake. hydrocarbons (PAHs), and their fragmentation products for H-, H+-, C2H2-, and C2H+2-emissions. P. Goldberg, J. Mechanistic Interpretation of the Dependence of Charge State Distributions on Analyte Concentrations in Electrospray Ionization Mass Spectrometry. II. Desorption ionization by charge exchange (DICE) for sample analysis under ambient conditions by mass spectrometry. Geert Reitsma, Johan Hummert, Judith Dura, Vincent Loriot, Marc J. J. Vrakking, Franck Lépine. Donq Wen Looi, Imran Iftikhar, Anna Brajter-Toth. Rita Giovannetti, Vito Bartocci, Filippo Pucciarelli, Massimo Ricciutelli. Monochromatic synchrotron VUV radiation ionizes the cooled or thermal gas-phase sample. He Liu, Jun Mu, Zongxian Wang, Shunfeng Ji, Quan Shi, Aijun Guo, Kun Chen, and Jincheng Lu .