Determination of Structural Parameters from Advanced Molecular Electronic Spectroscopy: The Double Ionization of Nitrous Oxide by Synchrotron Radiation

被引：3

作者：

Alagia, Michele ^{[2
]}

Furlani, Claudio ^{[3
]}

Pirani, Ferdinando ^{[4
]}

Lavollee, Michel ^{[5
]}

Richter, Robert ^{[6
]}

Stranges, Stefano ^{[7
]}

Candori, Pietro ^{[1
]}

Falcinelli, Stefano ^{[1
]}

Vecchiocattivi, Franco ^{[1
]}

机构：

[1] Univ Perugia, Dipartimento Ingn Civile & Ambientale, I-06125 Perugia, Italy

[2] CNR, ISMN, Sez Roma 1, I-00185 Rome, Italy

[3] Univ Roma Tre, Dipartimento Fis Edoardo Amaldi, Rome, Italy

[4] Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy

[5] Univ Paris 11, CNRS, LIXAM, UMR8624, F-91405 Orsay, France

[6] Sincrotrone Trieste, I-34012 Trieste, Italy

[7] Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy

来源：

RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI | 2008年 / 19卷 / 03期

关键词：

Photoionization; Synchrotron Radiation; Dications; Coulomb explosion; Pre-dissociation;

D O I：

10.1007/s12210-008-0015-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The double photoionization of N2O molecules, in the 30-50 eV energy range, has been studied by synchrotron radiation. In the whole energy range, dissociative ionization producing N+ + NO+ or N-2(+) + O+ has been observed. These two processes appear to occur also below the vertical threshold of 35.8 eV, where the double ionization should be indirect. In the range between 35.8 and 38.5 eV. The two processes occur instead by direct coulomb explosion of the N2O2+ dication. Above 38.5 eV, the dissociation leading to NO+ + N+ is also promoted by the formation of a dication metastable state, which decays by fluorescence to the ground state and then dissociates.

引用

页码：215 / 221

页数：7

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