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Issue 41, 2018
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Reversible on–off switching of both spin crossover and single-molecule magnet behaviours via a crystal-to-crystal transformation

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Abstract

The on–off switching of spin-crossover (SCO) and single-molecule magnetism (SMM) remains highly attractive, especially if it involves dynamic crystal-to-crystal transformation. Herein we report the first molecule, a mononuclear cobalt(II) complex, that exhibits on–off switching between SCO and SMM reversibly during crystal-to-crystal transformation. Subtle structural transformation triggered by a simple dehydration–rehydration process induces significant geometrical changes of the CoII center and modification of the supramolecular interactions and switches its colour and magnetic properties (dark red/SCO-on/SMM-off ↔ orange/SCO-off/SMM-on). This work suggests that modification of the weak supramolecular interactions could be very effective in achieving switchable materials involving both SCO and SMM properties.

Graphical abstract: Reversible on–off switching of both spin crossover and single-molecule magnet behaviours via a crystal-to-crystal transformation

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Publication details

The article was received on 24 Jun 2018, accepted on 27 Aug 2018 and first published on 27 Aug 2018


Article type: Edge Article
DOI: 10.1039/C8SC02774A
Citation: Chem. Sci., 2018,9, 7986-7991
  • Open access: Creative Commons BY-NC license
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    Reversible on–off switching of both spin crossover and single-molecule magnet behaviours via a crystal-to-crystal transformation

    D. Shao, L. Shi, L. Yin, B. Wang, Z. Wang, Y. Zhang and X. Wang, Chem. Sci., 2018, 9, 7986
    DOI: 10.1039/C8SC02774A

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