| Автор | D Smith |
| Автор | N G Adams |
| Автор | E Alge |
| Автор | H Villinger |
| Автор | W Lindinger |
| Дата выпуска | 1980-07-28 |
| dc.description | The rate coefficients and product ions for the reactions Ne<sup>2+</sup>, Ar<sup>2+</sup>, Kr<sup>2+</sup> and Xe<sup>2+</sup> ions with He, Ne, Ar, Kr and Xe have been determined in the Birmingham selected-ion flow tube (SIFT) at 300K, and the energy variation of several of these reactions has been studied in the Innsbruck drift tube (IDT). In the case of Xe<sup>2+</sup>, the reactions of the ground state (<sup>3</sup>P) and the metastable electronic states (<sup>1</sup>D<sub>2</sub> and <sup>1</sup>S<sub>0</sub>), were studied whereas for Ar<sup>2+</sup> a study of only the <sup>3</sup>P and <sup>1</sup>S<sub>0</sub> state reactions was possible. In the case of Ne<sup>2+</sup> no state selection was achieved and for Kr<sup>2+</sup> state selection was only achieved in the reaction with Ne. Single charge transfer was the only observed mechanism in all of the reactions except the Ne<sup>2+</sup> reactions with Kr and Xe in which double charge transfer channels were also evident. The widely varying rate coefficients are interpreted in terms of a model involving the internuclear separation, R<sub>x</sub>, at which the ion-induced dipole attractive and the Coulombic repulsive potential curves cross, and which indicates that a 'reaction window' exists for R<sub>x</sub> between 2 and 6 AA. The drift tube data are totally consistent with the model and the increasing rate coefficients with increasing energy for the Kr<sup>2+</sup>(<sup>1</sup>D<sub>2</sub>)+Ne and Xe<sup>2+</sup>(<sup>3</sup>P)+Ar reactions clearly indicate an increasing efficiency for the production of the <sup>2</sup>P<sub>1/2</sub> states of Kr<sup>+</sup> and Xe<sup>+</sup> rather than the <sup>2</sup>P<sub>3/2</sub> states which are the favoured products at thermal energies. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Reactions of Ne<sup>2+</sup>, Ar<sup>2+</sup>, Kr<sup>2+</sup> and Xe<sup>2+</sup> with the rare gases at low energies |
| Тип | paper |
| DOI | 10.1088/0022-3700/13/14/018 |
| Print ISSN | 0022-3700 |
| Журнал | Journal of Physics B: Atomic and Molecular Physics |
| Том | 13 |
| Первая страница | 2787 |
| Последняя страница | 2799 |
| Аффилиация | D Smith; Dept. of Space Res., Univ. of Birmingham, Birmingham, UK |
| Аффилиация | N G Adams; Dept. of Space Res., Univ. of Birmingham, Birmingham, UK |
| Аффилиация | E Alge; Dept. of Space Res., Univ. of Birmingham, Birmingham, UK |
| Аффилиация | H Villinger; Dept. of Space Res., Univ. of Birmingham, Birmingham, UK |
| Аффилиация | W Lindinger; Dept. of Space Res., Univ. of Birmingham, Birmingham, UK |
| Выпуск | 14 |
