Characterization of Tetracyanopyridine (TCNPy)‐Based Magnets: V[TCNPy]2⋅z (CH2Cl2) (Tc=111 K) and V[TCNPy]3⋅z (CH2Cl2) (Tc=90 K) |
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| Authors: | Dr. Jingjun Hao Royce A. Davidson Dr. Christopher M. Kareis Marzieh Kavand Dr. Kipp J. van Schooten Prof. Christoph Boehme Eva Wöß Prof. Günther Knör Prof. Joel S. Miller |
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| Affiliation: | 1. Material Research Science and Engineering Center, University of Utah, Salt Lake City, UT, USA;2. Department of Chemistry, 315 S. 1400 E. RM 2124, University of Utah, Salt Lake City, UT, USA;3. Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah, USA;4. Institute of Inorganic Chemistry, Johannes Kepler University Linz, Linz, Austria |
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| Abstract: | The reaction of 2,3,5,6‐tetracyanopyridine (TCNPy) with V(CO)6 in CH2Cl2 forms new organic‐based magnets of V[TCNPy]x?z (CH2Cl2) (x=2, 3) composition. Analysis of the IR spectra suggests that the TCNPy is reduced and coordinated to VII sites through the nitriles. V[TCNPy]x order as ferrimagnets with 111 and 90 K Tc values for V[TCNPy]2 and V[TCNPy]3, respectively. Their respective remanent magnetizations and coercive fields are 1260 and 250 emuOe mol?1 and 9 and 6 Oe at 5 K, and they exhibit some spin‐glass behavior. |
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| Keywords: | cyanocarbon EPR spectroscopy magnetic ordering organic-based magnets vanadium |
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