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Magnetochemistry 2016, 2(4), 44; doi:10.3390/magnetochemistry2040044

Hybrid Molecular Compound Exhibiting Slow Magnetic Relaxation and Electrical Conductivity

1
Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
2
Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology (JST), 4-1-8 Kawaguchi, Saitama 332-0012, Japan
3
WPI Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Kevin Bernot
Received: 27 September 2016 / Revised: 28 November 2016 / Accepted: 30 November 2016 / Published: 9 December 2016
(This article belongs to the Special Issue Molecular Magnetism of Lanthanides Complexes and Networks)
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Abstract

Electrochemical oxidation of a solution containing KDy(hfac)4 (hfac, hexafluoroacetyacetone) and Bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) afforded a hybrid material formulated as [β′-(BEDT-TTF)2Dy(CF3COO)4∙MeCN]n. The complex crystallizes in the triclinic space group P 1 ¯ . The before mentioned complex has a chain structure containing 4f ions bridged by mono-anion CF3COO ligand, and acts as single-molecule magnet (SMM) at low temperature. The conducting layer was composed of partially oxidized BEDT-TTF molecules in β′ type arrangement. The presence of radical cation and its charge ordering was assigned on the basis of optical spectra. Electrical resistivity measurements revealed semiconducting behaviour (conductivity at room temperature of 1.1 × 10−3 S·cm−1, activation energy of 158.5 meV) at ambient pressure. View Full-Text
Keywords: BEDT-TTF; conductivity; SMM; dysprosium BEDT-TTF; conductivity; SMM; dysprosium
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MDPI and ACS Style

Shen, Y.; Cosquer, G.; Breedlove, B.K.; Yamashita, M. Hybrid Molecular Compound Exhibiting Slow Magnetic Relaxation and Electrical Conductivity. Magnetochemistry 2016, 2, 44.

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