6533b7d9fe1ef96bd126cb13
RESEARCH PRODUCT
A two-dimensional radical salt based upon BEDT-TTF and the dimeric, magnetic anion [Fe(tdas)2]22−: (BEDT-TTF)2[Fe(tdas)2] (tdas = 1,2,5-thiadiazole-3,4-dithiolate)
Laura LeoniAravinda M. KiniCarlos J. Gómez-garcíaEugenio CoronadoUrs GeiserHyung-jun KooJohn A. SchlueterJamie L. MansonM.-h. WhangboPaola DeplanoMaria Laura MercuriHau H. Wangsubject
Inorganic chemistryGeneral ChemistryElectronic structureCrystal structureMagnetic susceptibilitylaw.inventionMagnetizationchemistry.chemical_compoundCrystallographysymbols.namesakechemistrylawMaterials ChemistrysymbolsElectron paramagnetic resonanceRaman spectroscopySingle crystalTetrathiafulvalenedescription
In an attempt to synthesize new synthetic metals which couple magnetic properties to conductivity, we prepared the novel salt (BEDT-TTF)2[Fe(tdas)2] [BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene, hereafter referred to as ET; tdas = 1,2,5-thiadiazole-3,4-dithiolate] by the electrocrystallization technique. The crystal structure of this compound, as determined by single crystal X-ray diffraction, contains conducting, organic ET layers separated by dimerized, magnetic [Fe(tdas)2]22− anions. Due to the magnetic insulating ground electronic state of the ET layer, thermally activated conductivity is observed, with a room temperature value of about 1 S cm−1. This salt was also characterized by EPR spectroscopy, dc magnetization measurements and Raman spectroscopy. The electronic structure of the ET layers was investigated by extended Huckel tight-binding calculations, and the spin exchange interactions of the ET and [Fe(tdas)2]− layers were examined by spin-dimer analysis.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-01-01 | J. Mater. Chem. |