REMPI FRAGMENTATION AS A PROBE OF HYDROGEN-BONDING IN AROMATIC-X CLUSTERS

被引：52

作者：

GORD, JR ^{[1
]}

GARRETT, AW ^{[1
]}

BANDY, RE ^{[1
]}

ZWIER, TS ^{[1
]}

机构：

[1] PURDUE UNIV,DEPT CHEM,W LAFAYETTE,IN 47907

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 171卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(90)85244-7

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 complexes of C6H6 with a series of molecules of varying hydrogen-bonding abilities (HCl, CHCl3, H2O, and CH3Cl) are studied in one-color resonance-enhanced two-photon ionization. The degree of fragmentation of the ionic complex is seen to be extremely high in several of these complexes, even under very mild laser power conditions. Quantitative measurements show the degree of fragmentation to be well correlated with the hydrogen bonding ability of the complexing molecule. A π-hydrogen-bonded neutral complex will efficiently fragment upon photoionization by virtue of the repulsive geometry formed for the ionic complex in Franck-Condon excitation from the S1 state. © 1990.

引用

页码：443 / 450

页数：8

共 20 条

[1]

ATKINS PW, 1990, PHYSICAL CHEM, P959

[2]

BORNSEN KO, 1986, J CHEM PHYS, V85, P1726, DOI 10.1063/1.451173

[3] HYDROGEN-BONDED COMPLEXES INVOLVING BENZENE AS AN H-ACCEPTOR [J].