Real time monitoring of the evaporative cooling:: Application to the dynamics of NaI-(NH3)n clusters

被引：29

作者：

Grégoire, G ^{[1
]}

Mons, M

Dimicoli, I

Dedonder-Lardeux, C

Jouvet, C

Martrenchard, S

Solgadi, D

机构：

[1] CEA Saclay, DRECAM, SPAM, F-91191 Gif Sur Yvette, France

[2] Univ Paris Sud, CNRS, Photophys Mol Lab, F-91405 Orsay, France

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 03期

关键词：

D O I：

10.1063/1.478029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The picosecond evaporation dynamics of ammonia molecules from Na(NH3)(n) clusters produced via the dissociation of NaI within an ammonia cluster is studied experimentally. A time dependence of the mass selected ion signal is observed only for one cluster size and not for larger clusters nor for smaller ones. It will be shown that evaporation in the ionic state is responsible for the absence of an observation of the evaporation in the neutral state. The variation of the ionization cross section with cluster size is the key point for the interpretation of the results. (C) 1999 American Institute of Physics. [S0021-9606(99)00603-0].

引用

页码：1521 / 1525

页数：5

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