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

Crystals

Kazuya Kubo¹ 

[1] Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan

关键词: molecular conductor;    mixed crystal;    BEDT-TTF;    quasi-one dimensional character;    α'-type donor arrangement;    Mott-Hubbard insulator;   

DOI  :  10.3390/cryst2020284

来源: mdpi

【 摘 要 】

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: ρ_rt = 2 × 10² Ω cm, E_a = 0.2 eV), and energy band calculations. The results showed that this system had a quasi-one dimensional Fermi surface.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.