Issue 41, 2018

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

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

Supplementary files

Article information

Article type
Edge Article
Submitted
24 juin 2018
Accepted
27 août 2018
First published
27 août 2018
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2018,9, 7986-7991

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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