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

Authors
TROXLER T SMITH PG TOPP MR
Citation
T. Troxler et al., STRUCTURAL MEASUREMENTS OF HYDROGEN-BONDED VAN-DER-WAALS DIMERS AND TRIMERS BY ROTATIONAL COHERENCE SPECTROSCOPY - 2,5-DIPHENYLOXADIAZOLE (PPD) WITH WATER, Chemical physics letters, 211(4-5), 1993, pp. 371-377
Citations number
22
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
211
Issue
4-5
Year of publication
1993
Pages
371 - 377
Database
ISI
SICI code
0009-2614(1993)211:4-5<371:SMOHVD>2.0.ZU;2-3
Abstract
Rotational coherence spectroscopy involving polarized, time-correlated single-photon counting techniques has been used to measure the excite d-state structures of hydrogen-bonded complexes between PPD and water at the 1:1 and 1:2 levels of aggregation. Structure determinations inv olved comparison of measured and simulated RCS traces using the measur ed 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 angs trom. The best structural estimate for the 1:2 complex, PPD/(H2O(2, co nsists of a water dimer, hydrogen bonded to one nitrogen atom of PPD.