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Issue 30, 2015
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Multi-modal sensing in spin crossover compounds

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We exploited the solvatochromic spin-state switching in a spin crossover (SCO) compound based on the FeII complex and the simultaneous change of spectroscopic properties for selective multimodal sensing of methanol and ethanol. We demonstrate that sensing capabilities are due to the inclusion of methanol or ethanol molecules into the crystalline structure, which tailors simultaneously the transition temperature, colour, birefringence and vibrational modes. We exploited this capability by integrating a neutral compound, switchable at room temperature, into a micrometric TAG sensitive to the colour and birefringence. The system was characterised by optical microscopy, magnetic susceptibility, Raman spectroscopy and X-ray diffraction.

Graphical abstract: Multi-modal sensing in spin crossover compounds

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Article information

26 mar. 2015
22 apr. 2015
First published
23 apr. 2015

J. Mater. Chem. C, 2015,3, 7836-7844
Article type
Author version available

Multi-modal sensing in spin crossover compounds

D. Gentili, N. Demitri, B. Schäfer, F. Liscio, I. Bergenti, G. Ruani, M. Ruben and M. Cavallini, J. Mater. Chem. C, 2015, 3, 7836
DOI: 10.1039/C5TC00845J

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