EXCITED-STATE PROTON-TRANSFER FROM 4-HYDROXY-1-NAPHTHALENESULFONATE TO UREA

Authors
HTUN MT SUWAIYAN A BAIG A KLEIN UKA
Citation
Mt. Htun et al., EXCITED-STATE PROTON-TRANSFER FROM 4-HYDROXY-1-NAPHTHALENESULFONATE TO UREA, The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 102(43), 1998, pp. 8230-8235
Citations number
16
Categorie Soggetti
Chemistry Physical
Journal title
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory → ACNP
ISSN journal
10895639
Volume
102
Issue
43
Year of publication
1998
Pages
8230 - 8235
Database
ISI
SICI code
1089-5639(1998)102:43<8230:EPF4T>2.0.ZU;2-E
Abstract
The excited-state proton transfer from 4-hydroxy-1-naphthalenesulfonat e to urea has been studied in methanol at 25 degrees C. The decay of t he acidic form is single-exponential for ail urea concentrations. The proton acceptor concentration has been found to increase nonlinearly w ith the concentration of urea. The nonlinear behavior is explained by a model proposing urea monomers and, in particular, urea dimers to be the proton accepters in methanol.