✦ LIBER ✦

Structural measurements of hydrogen-bonded van der Waals dimers and trimers by rotational coherence spectroscopy. 2,5-diphenyloxadiazole (PPD) with water

✍ Scribed by Thomas Troxler; Philip G. Smith; Michael R. Topp

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 598 KB
Volume: 211
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)87075-e

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✦ Synopsis

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 I : 2 levels of aggregation. Structure determinations involved comparison of measured and simulated RCS traces using the measured B and C rotational constants. PPD/ ( HZO) , reveals a singly hydrogen-bonded, in-plane structure with an N...H-0 distance of 2.95 f 0. I A.