Photoluminescent Lanthanide(III) Single-Molecule Magnets in Three-Dimensional Polycyanidocuprate(I)-Based Frameworks |
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| Authors: | Jakub J Zakrzewski Dr Szymon Chorazy Dr Koji Nakabayashi Prof?Dr Shin-ichi Ohkoshi Prof?Dr Barbara Sieklucka |
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| Institution: | 1. Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland;2. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan |
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| Abstract: | Three-dimensional bimetallic cyanido-bridged frameworks, LnIII(2,2′-bipyridine N,N′-dioxide)2(H2O)]CuI2(CN)5]?5 H2O (Ln=Dy, 1 ; Yb, 2 ), are reported. They exhibit the effect of slow relaxation of magnetization, leading to a magnetic hysteresis loop, and sensitized visible-to-near-infrared photoluminescence. Both physical properties are related to the eight-coordinated lanthanide(III) complexes embedded in the unprecedented coordination skeleton composed of symmetry-breaking polycyanidocuprate linkers. The three-dimensional d–f cyanido-bridged network was shown to serve as an efficient coordination scaffold to achieve emissive lanthanide single-molecule magnets. |
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| Keywords: | copper cyanides lanthanides photoluminescence single-molecule magnets |
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