Issue 30, 2015

Multi-modal sensing in spin crossover compounds

Abstract

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

Supplementary files

Article information

Article type
Paper
Submitted
26 מרץ 2015
Accepted
22 אפר 2015
First published
23 אפר 2015

J. Mater. Chem. C, 2015,3, 7836-7844

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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