Anions made of cations and dianions:: [CsC9]- and [CsC7]-

被引:20
作者
Dreuw, A [1 ]
Cederbaum, LS [1 ]
机构
[1] Heidelberg Univ, Inst Phys Chem, D-69120 Heidelberg, Germany
关键词
D O I
10.1063/1.479405
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
Recently, C-9(2-) dianions have been observed as products in the collision of 48 keV [CsC9](-) ions with hydrogen or helium. Motivated by this observation we examined the structure of [CsC9](-) anions in a detailed theoretical study. The geometries of the finally detected C-9(2-) dianions should be closely related to the intermediately produced [CsC9](-) anions. We found stable isomers of [CsC9](-) which possess "lightly embracing" structures reflecting the geometrical characteristics of the theoretically prognosticated stable C-9(2-) dianions. The examination of the smaller [CsC7](-) anions confirmed these results: Lightly embracing isomers of [CsC7](-) have been found to form stable anions. (C) 1999 American Institute of Physics. [S0021-9606(99)30724-8].
引用
收藏
页码:1467 / 1476
页数:10
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