Synthesis and ESR behaviors of nitroxide monoradical based on calix[4]arene

A novel paramagnetic calix[4]arene 6 with an N–O monoradical on the upper rim was synthesized and studied by ESR spectroscopy. Its ESR behaviors were mainly induced by its intrinsic conformational flexibility. The effects of varying temperature and complexation of silver ions on its ESR behaviors we...

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Bibliographic Details
Published inTetrahedron letters Vol. 47; no. 42; pp. 7463 - 7465
Main Authors Hu, Xiaojun, Li, Yong, Yang, Haijun, Luo, Yanghe
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier Ltd 16.10.2006
Elsevier
Subjects
Calixarene
Chemistry
Chemistry, Organic
Conformation
ESR
Nitroxide radical
Physical Sciences
Science & Technology
Calixarene
ESR
Nitroxide radical
Conformation
ETHERS
CALIX ARENE
nitroxide radical
conformation
EXCHANGE INTERACTION
CONFORMATIONAL ISOMERS
calixarene
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Summary:A novel paramagnetic calix[4]arene 6 with an N–O monoradical on the upper rim was synthesized and studied by ESR spectroscopy. Its ESR behaviors were mainly induced by its intrinsic conformational flexibility. The effects of varying temperature and complexation of silver ions on its ESR behaviors were also investigated. A novel paramagnetic calix[4]arene 6 with an N–O monoradical on the upper rim was synthesized and studied by ESR spectroscopy. Its ESR behaviors were mainly induced by its intrinsic conformational flexibility. The effects of varying temperature and complexation of silver ions on its ESR behaviors were also investigated.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2006.08.034