Cold collisions catalyse conformational conversion

被引：71

作者：

Erlekam, Undine ^{[1
]}

Frankowski, Marcin ^{[1
]}

von Helden, Gert ^{[1
]}

Meijer, Gerard ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2007年 / 9卷 / 28期

关键词：

D O I：

10.1039/b703571c

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：

We have determined the abundance of two different conformational structures of the mixed benzene dimer (C6H6)(C6D6) in a molecular beam, with various carrier gases. These two T-shaped conformers have a subtle zero-point energy difference of only a few cm(-1), and a transition state barrier of about 64 cm(-1). Nevertheless, depending on the carrier gas, the lowest energy conformer can exclusively be prepared in the molecular beam. Low-energy two-body collisions of the benzene-dimers with the carrier gas atoms are concluded to be responsible for this.

引用

页码：3786 / 3789

页数：4

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