DESCRIPTION OF SOLVENT EFFECT ON THE VISIBLE ABSORPTION-SPECTRUM OF FLUORENONE RADICAL-ANION

Authors
WAGNERCZAUDERNA E LIPKA R KALINOWSKI MK
Citation
E. Wagnerczauderna et al., DESCRIPTION OF SOLVENT EFFECT ON THE VISIBLE ABSORPTION-SPECTRUM OF FLUORENONE RADICAL-ANION, Berichte der Bunsengesellschaft fur Physikalische Chemie, 101(4), 1997, pp. 668-671
Citations number
35
Categorie Soggetti
Chemistry Physical
Journal title
Berichte der Bunsengesellschaft fur Physikalische Chemie
ISSN journal
00059021 → ACNP
Volume
101
Issue
4
Year of publication
1997
Pages
668 - 671
Database
ISI
SICI code
0005-9021(1997)101:4<668:DOSEOT>2.0.ZU;2-V
Abstract
The solvatochromic shift of the most intensive band of fluorenone radi cal anion (FN.-) in the visible region has been examined in 10 polar f ormally aprotic media. It has been found that this shift depends on th e solvent acceptor number (AN) and static dielectric constant (D) acco rding to planar regression: <(nu)over tilde>(max)/cm(-1) = 98.83 AN - 44890 [(D - 1)/(2D + 1)] + 38543 It is suggested that the ground state of FN.- is relatively stabilized in a solvent with a high acceptor nu mber and the dipole moment of the solute increases during an excitatio n.