Unusual stoichiometry, band structure and band filling in conducting enantiopure radical cation salts of TM-BEDT-TTF showing helical packing of the donors
نویسندگان
چکیده
Enantiopure semiconducting crystalline radical cation salts of TM-BEDT-TTF with the Lindqvist type molybdenum based dianion, prepared by electrocrystallization, show unusual donor/anion ratio, charge distribution and helical packing donors.
منابع مشابه
Enantiopure and racemic radical-cation salts of B(malate)2(-) anions with BEDT-TTF.
We have synthesized the first examples of radical-cation salts of BEDT-TTF with chiral borate anions, [B(malate)2](-), prepared from either enantiopure or racemic bidentate malate ligands. In the former case only one of two diastereoisomers of the borate anion is incorporated, while for the hydrated racemic salt one racemic pair of borate anions containing a R and a S malate ligand is incorpora...
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The synthesis, structural characterization, electrical transport, optical, and magnetic properties of a new cation-radical salt, bis(ethylenedithio)tetrathiafulvalene hexafluorophosphate, ú-(BEDT-TTF)PF6, are reported. The X-ray structure was determined at 298 K and at 173 K. The primary difference at the two temperatures is that the PF6 anions are disordered at 298 K and ordered at 173 K. At 2...
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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 × 10 Ω cm, Ea = 0.2 eV), and energy band calculations. ...
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15 صفحه اولPolymorphism and Metallic Behavior in BEDT-TTF Radical Salts with Polycyano Anions
Up to five different crystalline radical salts have been prepared with the organic donor BEDT-TTF and three different polynitrile anions. With the polynitrile dianion tcpd 2− (=C[C(CN)2]3 2− ), two closely related radical salts: α'-(ET)4tcpd·THF (1) (THF = tetrahydrofurane) and α'-(ET)4tcpd·H2O (2) have been prepared, depending on the solvent used in the synthesis. With the mono-anion tcnoetOH ...
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ژورنال
عنوان ژورنال: Journal of Materials Chemistry C
سال: 2021
ISSN: ['2050-7526', '2050-7534']
DOI: https://doi.org/10.1039/d1tc01112j