HYDROGEN TRANSITIONS BETWEEN (HF)(N) C-NH STRUCTURES (N=2-5) VIA D-NH TRANSITION-STATES AS MODELS FOR HYDROGEN TUNNELING IN HYDROGEN-FLUORIDE CLUSTERS

被引:24
作者
LIEDL, KR [1 ]
KROEMER, RT [1 ]
RODE, BM [1 ]
机构
[1] SANDOZ GMBH, FORSCHUNGSINST, A-1235 VIENNA, AUSTRIA
关键词
D O I
10.1016/0009-2614(95)01135-3
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
In order to obtain a realistic model of hydrogen tunneling in hydrogen fluoride clusters, a concerted transfer of hydrogens comparable to the well-known Grotthus mechanism discussed for the hydrogen transfer in water was investigated. Hydrogen tunneling barriers between two C-nh clusters (mirror images) were calculated at the MP2 level of theory with a 6-311++G(3df, 3pd) basis set. The corresponding A' (respectively A(g)) tunneling frequencies of the C-nh structures and the force constants in the direction corresponding to A'(1) and A'(2) (respectively A(1g) and A(2g), A(g) and B-1g) in the related D-nh barrier structures were investigated to estimate the shape of the tunneling path.
引用
收藏
页码:455 / 462
页数:8
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