Synthesis, crystal structures and electrical properties of cation radical salts of selenium-containing π-extended donors, BEDT-HBDST and BEDT-HSTT
2003
Abstract We have synthesized novel selenium-containing π-extended donors, BEDT-HBDST and BEDT-HSTT. The PF 6 , AsF 6 and SbF 6 salts of BEDT-HBDST showed broad ρ max at around 120, 95 and 85 K, respectively, and metallic behavior down to 2 K. The quasi-one-dimensional metallic band structures are calculated for the PF 6 and AsF 6 salts of BEDT-HSTT with an α′-type donor arrangement, although these salts showed semiconducting behavior.
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