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Synthesis and reversible thermo-induced conformational transitions of a stable nitroxide biradical based on
1Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
Chemical Communications (Cambridge, England)
|July 12, 2002
Abstract:
A stable paramagnetic calix[4]arene(III) bearing two nitroxide groups on the upper rim is synthesized, which exhibits a strong intramolecular spin-spin exchange interaction and is found to be able to undergo reversible conformational transitions upon heating.