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Updated: May 11, 2026

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A supramolecular switch between ground high- and low-spin states using 2,2':6',2''-terpyridine-6,6''-diyl
Takuya Konno1, Kazuya Koide, Takayuki Ishida
1Department of Engineering Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan.
Abstract:
Biradical 2,2':6',2''-terpyridine-6,6''-diyl bis(tert-butyl nitroxide) (tpybNO) showed intramolecular ferromagnetic coupling with 2J/kB = +2.14(10) K and its complex [Zn(tpybNO)(MeOH)2](BF4)2 exhibited intramolecular antiferromagnetic coupling with 2J/kB = -7.5(4) K, suggesting exchange coupling switchable by means of supramolecular chemistry.
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