MICROWAVE SPECTROSCOPIC CHARACTERIZATION OF A STRONG HYDROGEN-BOND - TRIMETHYLAMINE WATER

被引：35

作者：

TUBERGEN, MJ ^{[1
]}

KUCZKOWSKI, RL ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1993年 / 115卷 / 20期

关键词：

D O I：

10.1021/ja00073a048

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Rotational spectra were observed for 10 isotopomers of the trimethylamine-water complex with use of a Fourier-transform microwave spectrometer. The observed spectra of all 10 isotopomers were characteristic of asymmetric top and are indicative of a free internal rotation of the water about the symmetry axis of trimethylamine. Analysis of the rotational constants reveals a structure with an essentially linear single hydrogen bond (1.82 angstrom). The dipole moment of the complex was determined to be 2.37 (1) D with use of Stark effect measurements. Ab initio calculations were used to model the structure and intermolecular potential energy surface of the complex.

引用

页码：9263 / 9266

页数：4

共 27 条

[1] MICROWAVE-SPECTRUM, STRUCTURE, BARRIER TO INTERNAL-ROTATION, DIPOLE-MOMENT, AND DEUTERIUM QUADUPOLE COUPLING-CONSTANTS OF THE ETHYLENE SULFUR-DIOXIDE COMPLEX [J].