STRUCTURAL MEASUREMENTS OF HYDROGEN-BONDED VAN-DER-WAALS DIMERS AND TRIMERS BY ROTATIONAL COHERENCE SPECTROSCOPY - 2,5-DIPHENYLOXADIAZOLE (PPD) WITH WATER

被引：13

作者：

TROXLER, T

SMITH, PG

TOPP, MR

机构：

[1] Department of Chemistry, University of Pennsylvania, Philadelphia

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 211卷 / 4-5期

关键词：

D O I：

10.1016/0009-2614(93)87075-E

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：

Rotational coherence spectroscopy involving polarized, time-correlated single-photon counting techniques has been used to measure the excited-state structures of hydrogen-bonded complexes between PPD and water at the 1:1 and 1:2 levels of aggregation. Structure determinations involved comparison of measured and simulated RCS traces using the measured B and C rotational constants. PPD/(H2O)1 reveals a singly hydrogen-bonded, in-plane structure with an N...H-O distance of 2.95+/-0.1 angstrom. The best structural estimate for the 1:2 complex, PPD/(H2O(2, consists of a water dimer, hydrogen bonded to one nitrogen atom of PPD.

引用

页码：371 / 377

页数：7

共 21 条

[1]

ABE H, 1982, J PHYS CHEM-US, V88, P1768

[2] PURELY ROTATIONAL COHERENCE EFFECT AND TIME-RESOLVED SUB-DOPPLER SPECTROSCOPY OF LARGE MOLECULES .2. EXPERIMENTAL [J].