New organic synthetic metals derived from BEDT-TTF, Ni(dsit) sub 2 and BEDO-TTF

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:5371867

Beno, M A; Kini, A M; Geiser, U; Wang, H H; Carlson, K D; Williams, J M

Three strategies have been employed by us to synthesize new organic synthetic metals and superconductors. On the basis of structure-property correlations derived for the {beta}-(BEDT-TTF){sub 2}X salts, new charge transfer salts of BEDT-TTF with large, polarizable anions have been synthesized. The occurrence of molecular dimers has been engineered into salts of the new organic acceptor molecule, Ni(dsit){sub 2} (bis (4,5 -diselenolate -1,3-dithiole-2-thione) nickelate), to synthesize salts with acceptor packing similar to the donor packing in {kappa}-(BEDT-TTF){sub 2}Cu(SCN){sub 2}. Finally, two charge transfer salts of bis(ethylenedioxy)tetrathiafulvalene, BEDO-TTF, namely (BEDO-TTF){sub 2}AuBr{sub 2} and (BEDO-TTF){sub 2}AuI{sub 2} have been synthesized. The AuBr{sub 2}{sup -} salt, the first BEDO-TTF salt to be structurally characterized, is semiconducting below 263 K, while the AuI{sub 2}{sup -} salt shows metallic conductivity to low temperatures. 10 refs., 3 figs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5371867
• Report Number(s): CONF-8908191-1; ON: DE90003793
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANIONS
BEDT-TTF
BROMIDES
BROMINE COMPOUNDS
CHARGED PARTICLES
GOLD BROMIDES
GOLD COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
IONS
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANIC SUPERCONDUCTORS
PHYSICAL PROPERTIES
SALTS
SUPERCONDUCTORS
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE