CYCLODEXTRIN COMPLEXES OF ZINC PORPHYRIN-TETRAVIOLOGEN SUPRAMOLECULE - MAGNETIC-FIELD EFFECT ON THE RECOMBINATION KINETICS OF THEIR TRIPLETRADICAL-ION PAIR STATES

Authors
SHAFIROVICH VY BATOVA EE LEVIN PP
Citation
Vy. Shafirovich et al., CYCLODEXTRIN COMPLEXES OF ZINC PORPHYRIN-TETRAVIOLOGEN SUPRAMOLECULE - MAGNETIC-FIELD EFFECT ON THE RECOMBINATION KINETICS OF THEIR TRIPLETRADICAL-ION PAIR STATES, Chemical physics letters, 210(1-3), 1993, pp. 101-106
Citations number
16
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
210
Issue
1-3
Year of publication
1993
Pages
101 - 106
Database
ISI
SICI code
0009-2614(1993)210:1-3<101:CCOZPS>2.0.ZU;2-M
Abstract
In aqueous solutions alpha- and gamma-cyclodextrins (CDs) separate the ground state complexes of the porphyrin (P) and viologen (Vi2+) moiet ies in the zinc porphyrin-tetraviologen supramolecule and modulate dyn amics of the connecting polymethylene chains between P and Vi2+. Effec ts of the chain dynamics being strongly dependent on the CD pore size appear in the quite different rates of the intramolecular quenching of 3P by Vi2+ and the recombination rates of the supramolecule triplet r adical ion pair states in an external magnetic field.