TRIARYLPYRYLIUM SALTS - DYNAMICS OF THE MONOMER-DIMER EQUILIBRIUM VIAA TRIPLET ABSORPTION STUDY

Authors
LAMPRE I MARKOVITSI D SHARONOV A VEBER M
Citation
I. Lampre et al., TRIARYLPYRYLIUM SALTS - DYNAMICS OF THE MONOMER-DIMER EQUILIBRIUM VIAA TRIPLET ABSORPTION STUDY, Chemical physics letters, 293(5-6), 1998, pp. 423-428
Citations number
9
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
293
Issue
5-6
Year of publication
1998
Pages
423 - 428
Database
ISI
SICI code
0009-2614(1998)293:5-6<423:TS-DOT>2.0.ZU;2-X
Abstract
Dimers formed by triarylpyrylium tetrafluoroborates in toluene and pol ystyrene were studied at room temperature by nanosecond flash photolys is. The time evolution of the differential absorption spectra observed for toluene solutions was interpreted in terms of a monomer-dimer equ ilibrium in the ground state; the association (similar to 10(9) l mol - 1 s(-1)) and dissociation (similar to 10(4) s(-1)) rate constants we re derived from the concentration dependence of the transient signals. (C) 1998 Elsevier Science B.V. All rights reserved.