6533b86cfe1ef96bd12c8123
RESEARCH PRODUCT
A chiral molecular conductor: synthesis, structure, and physical properties of [ET]3[Sb2(L-tart)2].CH3CN (ET = bis(ethylendithio)tetrathiafulvalene; L-tart = (2R,3R)-(+)-tartrate).
José Ramón Galán-mascarósEnric Canadell† And Ana Murcia-martínezCarlos J. Gómez-garcíaEugenio Coronadosubject
chemistry.chemical_classificationAntimonyChemistryStereochemistryRadicalMolecular ConformationTemperatureSalt (chemistry)Activation energyTartrateCrystallography X-RayMagnetic susceptibilityInorganic Chemistrychemistry.chemical_compoundCrystallographyElectrical resistivity and conductivityElectrochemistryOrganometallic CompoundsThermodynamicsPhysical and Theoretical ChemistryElectronic band structureTartratesTetrathiafulvalenedescription
The salt [ET](3)[Sb(2)(L-tart)(2)].CH(3)CN (1) has been obtained by electrocrystallization of the organic donor bis(ethylendithio)tetrathiafulvalene (ET or BEDT-TTF) in the presence of the chiral anionic complex [Sb(2)(L-tart)(2)](2-) (L-tart = (2R,3R)-(+)-tartrate). This salt crystallizes in the chiral space group P2(1)2(1)2(1) (a = 11.145(2) angstroms, b = 12.848(2) angstroms, c = 40.159(14) angstroms, V = 5750.4(14) angstroms(3), Z = 4) and is formed by alternating layers of the anions and of the organic radicals in a noncentrosymmetric alpha-type packing. This compound shows a room temperature electrical conductivity of approximately 1 S.cm(-1) and semiconducting behavior with an activation energy of approximately 85 meV. Analysis of the magnetic susceptibility and band structure, however, suggests that this compound should be a narrow band gap semiconductor.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-12-08 | Inorganic chemistry |