Studies of Doubly Charged Molecular Ions Using High-Resolution Double Charge Transfer Spectrometer.

Furuhashi, O; Kinugawa, Tohru; Masuda, Suomi; Yamada, Chikashi; Ohtani, S.

doi:10.5702/massspec.50.24

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Electron, 4 photon, [5][6][7] and atom or ion collision [8][9][10] induced fragmentation spectra have shown common features characterized by the dominant population of ions H n C n N n q+ (n = 2, 3, 4, 5; q = 1, 2) in the mass spectra. The locations of the expulsed fragments from Ad + parent ions have been identified using 15 N, 13 C, and 2 D labeled adenine in some early works. 11,12 The appearance energies (AE) of fragmentation channels have been measured with photoelectron and photoion spectroscopy in more recent works.…”

Section: Introductionmentioning

confidence: 99%

“…This method is originated from the doublecharge-transfer (DCT) spectroscopy, also called charge inversion spectroscopy developed since the late seventies for studying the energy levels of electronic-states of numerous diatomic, tri-atomic, and polyatomic doubly charged ions. [13][14][15] Originally, the DCT spectroscopy is based on the formation of negative ions by double electron capture in inelastic collisions between singly charged incident projectiles A + and neutral molecular targets M, A + + M → A − + M 2 + . By measuring the kinetic energy loss of the scattered anion A − , the double ionization energy levels of the target were determined.…”

Section: Introductionmentioning

confidence: 99%

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Fragmentation of singly charged adenine induced by neutral fluorine beam impact at 3 keV

Chen

Brédy

Bernard

et al. 2011

The Journal of Chemical Physics

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The fragmentation scheme of singly charged adenine molecule (H(5)C(5)N(5)(+)) has been studied via neutral fluorine impact at 3 keV. By analyzing in correlation the kinetic energy loss of the scattered projectile F(-) produced in single charge transfer process and the mass of the charged fragments, the excitation energy distribution of the parent adenine molecular ions has been determined for each of the main dissociation channels. Several fragmentation pathways unrevealed in standard mass spectra or in appearance energy measurements are investigated. Regarding the well-known hydrogen cyanide (HCN) loss sequence, we demonstrate that although the loss of a HCN is the dominant decay channel for the parent H(5)C(5)N(5)(+) (m = 135), the decay of the first daughter ion H(4)C(4)N(4)(+) (m = 108) involves not only the HNC (m = 27) loss but also the symmetric breakdown into two dimers of HCN.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fragmentation of singly charged adenine induced by neutral fluorine beam impact at 3 keV

Chen

Brédy

Bernard

et al. 2011

The Journal of Chemical Physics

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Current literature in mass spectrometry

2003

J. Mass Spectrom.

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In order to keep subscribers up‐to‐date with the latest developments in their field, John Wiley & Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of mass spectrometry. Each bibliography is divided into 11 sections: 1 Books, Reviews & Symposia; 2 Instrumental Techniques & Methods; 3 Gas Phase Ion Chemistry; 4 Biology/Biochemistry: Amino Acids, Peptides & Proteins; Carbohydrates; Lipids; Nucleic Acids; 5 Pharmacology/Toxicology; 6 Natural Products; 7 Analysis of Organic Compounds; 8 Analysis of Inorganics/Organometallics; 9 Surface Analysis; 10 Environmental Analysis; 11 Elemental Analysis. Within each section, articles are listed in alphabetical order with respect to author (4 Weeks journals ‐ Search completed at 4th. June. 2003)

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Excitation and dissociation of tungsten hexacarbonyl W(CO)6: Statistical and nonstatistical dissociation processes

Martin

Chen

Brédy

et al. 2011

The Journal of Chemical Physics

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We have studied the excitation and dissociation processes of the molecule W(CO)(6) in collisions with low kinetic energy (3 keV) protons, monocharged fluorine, and chlorine ions using double charge transfer spectroscopy. By analyzing the kinetic energy loss of the projectile anions, we measured the excitation energy distribution of the produced transient dications W(CO)(6)(2+). By coincidence measurements between the anions and the stable or fragments of W(CO)(6)(2+), we determined the energy distribution for each dissociation channel. Based on the experimental data, the emission of the first CO was tentatively attributed to a nonstatistical direct dissociation process and the emission of the second or more CO ligands was attributed to the statistical dissociation processes. The dissociation energies for the successive breaking of the W-CO bond were estimated using a cascade model. The ratio between charge separation and evaporation (by the loss of CO(+) and CO, respectively) channels was estimated to be 6% in the case of Cl(+) impact.

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Studies of Doubly Charged Molecular Ions Using High-Resolution Double Charge Transfer Spectrometer.

Cited by 4 publications

References 19 publications

Fragmentation of singly charged adenine induced by neutral fluorine beam impact at 3 keV

Fragmentation of singly charged adenine induced by neutral fluorine beam impact at 3 keV

Current literature in mass spectrometry

Excitation and dissociation of tungsten hexacarbonyl W(CO)6: Statistical and nonstatistical dissociation processes

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