Organic metals: BVDT-TTF and BDVDT-TTF polyiodides

Journal Article · Wed Dec 31 23:00:00 EST 1986 · Dokl. Phys. Chem. (Engl. Transl.); (United States)

OSTI ID:6964039

Yagubskii, E B; Kotov, A I; Shibaeva, R P; Ignat'ev, A A; Neiland, O Ya; Kreitsberga, Ya N

In order to experimentally investigate the influence of the steric effects of the ethylene groups in BEDT-TTF on the structure and electroconducting properties of the salts, the authors synthesized polyiodides of two derivatives of BEDT-TTF: bis(vinylenedithio)tetrathiafulvalene (BVDT-TTF), and bis(dimethylvinylenedithio)tetrathiafulvalene (BDVDT-TTF). Comparison of the structure and properties of the (BVDT-TTF)(I/sub 3/)/sub 0.4/ and (BDVDT-TTF) (I/sub 3/)/sub 0.4/ crystals with the (BEDT-TTF)(I/sub 3/)/sub 0.5/ crystals shows that substitution in BEDT-TTF of ethylene bridges for the vinylene bridges, leading to a completely conjugated planar system, probably ensures the possibility of a denser packing of the cation-radicals in the stacks. This results in strong unidimensional anisotropy of the intermolecular interactions, which leads to dielectrization of the electronic system in BVDT-TTF and BDVDT-TTF polyiodides.

• Research Organization: Institute of Chemical Physics, Chernogolovka (USSR)
• OSTI ID: 6964039
• Journal Information: Dokl. Phys. Chem. (Engl. Transl.); (United States), Journal Name: Dokl. Phys. Chem. (Engl. Transl.); (United States) Vol. 289:1-3; ISSN DKPCA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
360603* -- Materials-- Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
BEDT-TTF
BINDING ENERGY
CRYSTAL STRUCTURE
CRYSTALS
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
HETEROCYCLIC COMPOUNDS
IONIC CRYSTALS
LEPTONS
MATERIALS TESTING
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
STEREOCHEMISTRY
STRUCTURAL CHEMICAL ANALYSIS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VALENCE