Time-resolved EPR characterisation of radical-triplet pairs formed by host-guest interaction of a photoexcited C-60-crown ether with an ammonium aminoxyl in liquid solution

Citation
E. Sartori et al., Time-resolved EPR characterisation of radical-triplet pairs formed by host-guest interaction of a photoexcited C-60-crown ether with an ammonium aminoxyl in liquid solution, CHEM COMMUN, (4), 2001, pp. 311-312
Citations number
20
Categorie Soggetti
Chemistry
Journal title
CHEMICAL COMMUNICATIONS
ISSN journal
13597345 → ACNP
Issue
4
Year of publication
2001
Pages
311 - 312
Database
ISI
SICI code
1359-7345(2001):4<311:TECORP>2.0.ZU;2-5
Abstract
A time resolved EPR (TR-EPR) spectrum of a radical-triplet pair (RTP) in th e quartet excited state has been recorded by irradiating with visible laser light a solution of a [60]fullerene-crown ether conjugate and an ammonium aminoxyl radical; this is the first direct observation of a RTP in liquid s olution for a stable host-guest complex between a macrocyclic ligand bearin g a triplet precursor and an aminoxyl ammonium cation.