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First Evidence for a Uniquely Spin‐Polarized Quartet Photoexcited State of a π‐Conjugated Spin System Generated via the Ion‐Pair State
Author(s) -
Teki Yoshio,
Tamekuni Hirotaka,
Takeuchi Jun,
Miura Yozo
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200600898
Subject(s) - intersystem crossing , spin (aerodynamics) , ion , intramolecular force , state (computer science) , polarization (electrochemistry) , physics , spin polarization , spin states , acceptor , conjugated system , bodipy , chemistry , atomic physics , stereochemistry , excited state , quantum mechanics , fluorescence , nuclear magnetic resonance , singlet state , computer science , polymer , electron , thermodynamics , algorithm
A novel spin‐polarization mechanism involving the intramolecular ion pair *A .− ‐D .+ ‐R, which competes with a spin–orbit intersystem crossing, is proposed for the formation of the uniquely spin‐polarized quartet photoexcited state observed for 1 , which consists of a bodipy acceptor (A), a phenylanthracene donor (D), and a stable verdazyl radical (R).