NDLI: Radical Cation Salts of an Unsymmetrical BEDT-TTF Derivative: Molecular Structure and Physical Properties of $(DIMET*)_{2}CIO

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Radical Cation Salts of an Unsymmetrical BEDT-TTF Derivative: Molecular Structure and Physical Properties of $(DIMET*)_{2}CIO_{4}$ X THF

Content Provider	Scilit
Author	Heid, R. Endres, H. Keller, H. J.
Copyright Year	1985
Abstract	4.5-Dimethyl-4'.5'-ethylenedithiolotetrathiafulvalene (DIMET) was obtained by reacting 4.5- ethylenedithiolo-1.3-dithioliumtetrafluoroborate with 4.5-dimethyl- 1.3-dithiolium-tetrafluoroborate in the presence of diisopropylethylamine or triethylamine. Electrocrystallization of this donor in different solvents like dichloromethane or tetrahydrofurane (THF) and with varying supporting electrolytes, like tetrabutylammonium hexafluorophosphate, triiodide, nitrate, perrhenate or perchlorate, results in a large number of well crystallizing compounds. The crystal and molecular structure of one of the isolated solids was elucidated by X-ray methods. (C₁₀)H₁₀S₆)₂CIO₄ x C₄H₈O, Mr = 816.66, is triclinic, P1̄ , a = 6.731(5), b - 7.632(3), c = 33.32(3) Å , α = 96.53(5), β = 92.99(6), γ = 103.13(5)°, V - 1650.7 Å³, Z = 2, d_c = 1.64 gem^-3, final R_w = 0.077 for 1844 observed independent reflections. Sheets of cations with an average charge of 1/2+ are separated by sheets of anions and THF solvent molecules. Intermolecular S···S contacts result in two-dimensional physical properties. Electrical conductivity and thermopower measurements indicate two broad phase transitions at around 200 K and 80 K
Related Links	http://www.degruyter.com/downloadpdf/j/znb.1985.40.issue-12/znb-1985-1217/znb-1985-1217.xml
Ending Page	1710
Page Count	8
Starting Page	1703
ISSN	09320776
e-ISSN	18657117
DOI	10.1515/znb-1985-1217
Journal	Zeitschrift für Naturforschung B
Issue Number	12
Volume Number	40
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	1985-12-01
Access Restriction	Open
Subject Keyword	Zeitschrift Für Naturforschung B Inorganic Chemistry Structure Salts Thf Sup Dimethyl Sheets Cations Physical Properties Journal: Zeitschrift für Naturforschung B, Issue- 9
Content Type	Text
Resource Type	Article
Subject	Chemistry

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