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Royal Society of Chemistry, Journal of Materials Chemistry C Materials for optical and electronic devices, 36(3), p. 9292-9298, 2015

DOI: 10.1039/c5tc01851j

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Structural distortions of the spin-crossover material [Co(pyterpy)2](TCNQ)2mediated by supramolecular interactions

Journal article published in 2015 by Xuan Zhang ORCID, Haomiao Xie, Maria Ballesteros-Rivas, Zhao-Xi Wang, Kim R. Dunbar
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This paper is available in a repository.

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Abstract

The incorporation of TCNQ•- (7,7,8,8-tetracyanoquinodimethane) radicals as counterions for the spin-crossover material [Co(pyterpy)2](TCNQ)2·solvent (pyterpy = 4′-(4⌄-pyridyl)-2,2′:6′,2″-terpyridine) leads to structural distortions of the [Co(pyterpy)2]2+ spin-crossover cation as compared to [Co(pyterpy)2](PF6)2. Variable temperature structural and magnetic studies indicate that the supramolecular π-stacking interactions between the terminal pyridyl groups and TCNQ radicals play a crucial role in the spin-crossover properties. This journal is