Structural distortions of the spin-crossover material [Co(pyterpy) 2 ](TCNQ) 2 mediated by supramolecular interactions
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© The Royal Society of Chemistry. 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.
author list (cited authors)
Zhang, X., Xie, H., Ballesteros-Rivas, M., Wang, Z., & Dunbar, K. R.