Abstract
In order to develop new types of single-component molecular conductors with novel electronic structures and physical properties, the neutral gold dithiolate complex with an etdt (= ethylenedithiotetrathiafulvalenedithiolate) ligand, [Au(etdt)2] was prepared. However, unlike the reported single-component molecular metals, the neutral gold complex [Au(etdt)2]·THF (2) contains a solvent molecule of tetrahydrofuran (THF). The crystals of 2 form a two-dimensional conducting layer structure, which are separated by the terminal ethylene groups and THF molecules. The fairly high room-temperature conductivity of 0.2 S/cm and semiconducting behavior with a low activation energy of 0.1 eV of 2, is consistent with the result of the density functional theory band structure calculations. The observed non-magnetic behavior of 2 is caused from the dimeric structure of [Au(etdt)2] molecules.
Highlights
Introduction(TMTSF = tetramethyltetraselenafulvalene)—the first molecular organic superconductor [2], and λ(BETS) FeCl4 (BETS = bis(ethylenedithio)tetraselenafulvalene)—a field induced superconductor [3,4]
Since the discovery of the first molecular metal, TTF-TCNQ (TTF = tetrathiafulvalene, TCNQ = tetracyanoquinodimethane) charge transfer complex in 1973 [1], many various types of molecular conductors have been reported, including famous examples such as (TMTSF)2 PF6(TMTSF = tetramethyltetraselenafulvalene)—the first molecular organic superconductor [2], and λ(BETS)2 FeCl4 (BETS = bis(ethylenedithio)tetraselenafulvalene)—a field induced superconductor [3,4].These traditional charge transfer-based molecular conductors inherently consist of more than one kind of molecule, a donor as well as an acceptor
For single-component molecular conductor [M(L)2 ] systems, an important characteristic is that its electronic structure can be widely tuned by exchanging the central transition metal atom (M) for another transition metal atom, even among isostructural systems
Summary
(TMTSF = tetramethyltetraselenafulvalene)—the first molecular organic superconductor [2], and λ(BETS) FeCl4 (BETS = bis(ethylenedithio)tetraselenafulvalene)—a field induced superconductor [3,4]. These traditional charge transfer-based molecular conductors inherently consist of more than one kind of molecule, a donor as well as an acceptor. A number of single-component molecular conductors have been reported, such as [Au(Me-thiazdt)2 ]. For single-component molecular conductor [M(L)2 ] systems, an important characteristic is that its electronic structure can be widely tuned by exchanging the central transition metal atom (M) for another transition metal atom, even among isostructural systems.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
