EFFECT OF PRESSURE ON THE RATE COEFFICIENT FOR OPENING OF THE INTRAMOLECULAR HYDROGEN-BOND IN THE MONOANION OF 2-ETHYL-4-(4-NITROPHENYLAZO)RESORCINOL IN 80-PERCENT (V V) DIMETHYL-SULFOXIDE WATER/

Authors
COKER A HIBBERT F
Citation
A. Coker et F. Hibbert, EFFECT OF PRESSURE ON THE RATE COEFFICIENT FOR OPENING OF THE INTRAMOLECULAR HYDROGEN-BOND IN THE MONOANION OF 2-ETHYL-4-(4-NITROPHENYLAZO)RESORCINOL IN 80-PERCENT (V V) DIMETHYL-SULFOXIDE WATER/, Journal of chemical research. Synopses, (7), 1994, pp. 264-265
Citations number
4
Categorie Soggetti
Chemistry
Journal title
Journal of chemical research. Synopses → ACNP
ISSN journal
03082342
Issue
7
Year of publication
1994
Pages
264 - 265
Database
ISI
SICI code
0308-2342(1994):7<264:EOPOTR>2.0.ZU;2-6
Abstract
The value of the volume of activation (DELTAV1 = - 22 cm3 mol-1) for t he opening of the intramolecular hydrogen bond in the monoanion of 2-e thyl-4-(4-nitrophenylazo)resorcinol in 80% (v/v) Me2SO-H2O indicates t hat considerable solvent reorganisation has occurred in the formation of the transition state for reaction from the closed intramolecularly hydrogen-bonded species to the open species which forms a hydrogen bon d with the solvent.