Time-resolved dissociation of bromonaphthalene ion studied by TPIMS and TRPD. Heat of formation of naphthyl ion

Yehiel Gotkis; Mor Naor; Julia Laskin; Chava Lifshitz; James D. Faulk; Robert C. Dunbar

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Journal of the American Chemical Society

Article . 1993 . Peer-reviewed

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https://dx.doi.org/10.1021/ja0...

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Time-resolved dissociation of bromonaphthalene ion studied by TPIMS and TRPD. Heat of formation of naphthyl ion

descriptionPublicationkeyboard_double_arrow_right Article 01 Aug 1993 English Publisher:American Chemical Society (ACS)Journal:Journal of the American Chemical Society, volume 115, pages 7,402-7,406 (issn: 0002-7863, eissn: 1520-5126,

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Authors: Yehiel Gotkis; Mor Naor; Julia Laskin; Chava Lifshitz; James D. Faulk; Robert C. Dunbar;

doi: 10.1021/ja00069a044

Time-resolved dissociation of bromonaphthalene ion studied by TPIMS and TRPD. Heat of formation of naphthyl ion

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Abstract

Dissociation of 1-bromonaphthalene and 2-bromonaphthalene molecular ions was studied by time-resolved photo-dissociation (TRPD) in the ion cyclotron resonance spectrometer at ultraviolet wavelengths and by time-resolved photoionization mass spectromctry (TPIMS) in the vacuum ultraviolet. TRPD of the 1-bromonaphthalene ion gave rate constants of 3.4×10 3 s -1 at 266 nm (4.93 eV ion internal energy) and 1.6×10 4 s -1 at 252 nm (5.19 eV internal energy). The TRPD results, and the time-resolved PIE curves for the parent, C 10 H 7 Br + , and the daughter, C 10 H 7 + , were modeled by RRKM calculations

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