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Crystals 2012, 2(2), 284-293; doi:10.3390/cryst2020284

New BEDT-TTF Radical Cation Salt with Mixed Anions: α'-[BEDT-TTF]2[CuBr2]0.4[CuCl2]0.6

1
Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan
2
Department of Chemistry, Graduate School of Science Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, 980-8578, Japan
*
Author to whom correspondence should be addressed.
Received: 8 March 2012 / Revised: 13 April 2012 / Accepted: 13 April 2012 / Published: 23 April 2012
(This article belongs to the Special Issue Molecular Conductors)
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Abstract

A new mixed-anion crystal composed of BEDT-TTF radical cation salt [BEDT-TTF]2(CuBr2)0.4(CuCl2)0.6 with an α'-type donor arrangement with a formal charge of +0.5 per BEDT-TTF was prepared by using a chemical oxidation method and characterized by using X-ray diffraction, four-probe electrical resistivity measurements (semiconductor: ρrt = 2 × 102 Ω cm, Ea = 0.2 eV), and energy band calculations. The results showed that this system had a quasi-one dimensional Fermi surface.
Keywords: molecular conductor; mixed crystal; BEDT-TTF; quasi-one dimensional character; α'-type donor arrangement; Mott-Hubbard insulator molecular conductor; mixed crystal; BEDT-TTF; quasi-one dimensional character; α'-type donor arrangement; Mott-Hubbard insulator
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Kubo, K.; Yamashita, M. New BEDT-TTF Radical Cation Salt with Mixed Anions: α'-[BEDT-TTF]2[CuBr2]0.4[CuCl2]0.6. Crystals 2012, 2, 284-293.

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