Structure of bis(ethylenedithio)tetrathiafulvalenium dichlorocyanoselenate (2:1), (BEDT-TTF){sub 2}Cl{sub 2}SeCN

Technical Report · Sun Dec 31 04:00:00 EST 1995

DOI:https://doi.org/10.2172/212528· OSTI ID:212528

Geiser, U; Schlueter, J A; Dudek, J D; Williams, J M

The electron donor molecule BEDT-TTF has yielded approximately 50 superconductors to date. In addition, numerous other salts with a variety of electrical and magnetic properties have been discovered. Recently, the authors reported a semiconducting salt of BEDT-TTF with the novel T-shaped anion Br{sub 2}SeCN{sup {minus}2}. The crystallographic analysis of that salt revealed a near-centrosymmetric triclinic structure, except for the symmetry-breaking anion. On the basis of a Hamilton R-value test, the non-centrosymmetric space group P1 with ordered anions was preferred over centrosymmetric P{bar 1} with disordered anions. In this paper, the authors present the synthesis and crystal structure of the isostructural chlorine-analogue salt (BEDT-TTF){sub 2}Cl{sub 2}SeCN.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• OSTI ID: 212528
• Report Number(s): ANL/CHM/CP--89574; CONF-951205--5; ON: DE96008408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BEDT-TTF
CRYSTAL STRUCTURE
CYANIDES
EXPERIMENTAL DATA
ORGANIC SEMICONDUCTORS
SELENIUM CHLORIDES
SELENIUM COMPOUNDS
SYNTHESIS
X-RAY DIFFRACTION