Complexes (TBA + ){(TMI-NPS) 2 ·Ln III I 4 } − (Ln = Dy, Tb) with two axial photochromic spiropyran ligands: photoswitching and zero-field SIM behaviour with a high magnetization blocking barrier for the Dy complex

Nikita G. Osipov, Maxim A. Faraonov, Aleksey V. Kuzmin, Salavat S. Khasanov, Alexey A. Dmitriev, Nina P. Gritsan, N. N. Denisov, Akihiro Otsuka, Hiroshi Kitagawa, Dmitri V. Konarev

2025Inorganic Chemistry Frontiers8 citationsDOI

Abstract

Spiropyrans coordinate to Dy III and Tb III iodides to form crystalline (TBA + ){(TMI-NPS) 2 ·Ln III I 4 } − ·0.5C 6 H 4 Cl 2 (1 and 2). 1 is a single-ion magnet (SIM) with large U eff = 470 cm −1 , 2 is a field-induced SIM. The complex with Dy is photoresponsive.

Topics & Concepts

PhotochromismSpiropyranChemistryMagnetizationBlocking (statistics)LanthanideMaterials scienceCrystallographyPhotochemistryPhysicsMagnetic fieldOrganic chemistryMathematicsStatisticsQuantum mechanicsIonPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics researchPorphyrin and Phthalocyanine Chemistry

Complexes (TBA <sup>+</sup> ){(TMI-NPS) <sub>2</sub> ·Ln <sup>III</sup> I <sub>4</sub> } <sup>−</sup> (Ln = Dy, Tb) with two axial photochromic spiropyran ligands: photoswitching and zero-field SIM behaviour with a high magnetization blocking barrier for the Dy complex

Abstract

Topics & Concepts