MEASUREMENT OF QUANTUM TUNNELING BETWEEN CHIRAL ISOMERS OF THE CYCLIC WATER TRIMER

被引：422

作者：

PUGLIANO, N ^{[1
]}

SAYKALLY, RJ ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

来源：

SCIENCE | 1992年 / 257卷 / 5078期

关键词：

D O I：

10.1126/science.1411509

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A detailed experimental study of the water trimer is reported. A vibration-rotation-tunneling band of the perdeuterated cluster has been measured near 89.6 wavenumbers by tunable far infrared laser absorption spectroscopy. The data indicate a chiral six-membered ring structure with rapid quantum tunneling occurring between the enantiomers. The observed vibration involves torsional motion of the water subunits about each hydrogen bond axis. It is speculated that larger water clusters would also exhibit transient chirality and that similar effects may be found in liquid water.

引用

页码：1937 / 1940

页数：4

共 12 条

[1] NUCLEAR-SPIN SPECIES, STATISTICAL WEIGHTS, AND CORRELATION TABLES FOR WEAKLY BOUND VANDERWAALS COMPLEXES [J].