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Structural Characteristics in a Stable Metallic ET Salt with Unusually High Oxidation State (ET: Bis(ethylenedithio)tetrathiafulvalene)
| Title: | Structural Characteristics in a Stable Metallic ET Salt with Unusually High Oxidation State (ET: Bis(ethylenedithio)tetrathiafulvalene) |
| Authors: | Minemawari, Hiromi Browse this author | | Jose, Judy Fe F. Browse this author | | Takahashi, Yukihiro Browse this author →KAKEN DB | | Naito, Toshio Browse this author →KAKEN DB | | Inabe, Tamotsu Browse this author →KAKEN DB |
| Issue Date: | Mar-2012 |
| Publisher: | Chemical Society of Japan |
| Journal Title: | Bulletin of the Chemical Society of Japan |
| Volume: | 85 |
| Issue: | 3 |
| Start Page: | 335 |
| End Page: | 340 |
| Publisher DOI: | 10.1246/bcsj.20110253 |
| Abstract: | Electrolysis of ET in a mixed solvent of methanol/CHCl3 with bromide yielded (ET)3(Br3)5, in which an unusually high formal charge of ET^[5/3+] is achieved. ET forms a two-dimensional conducting sheet incorporating Br3-[-]. Despite the high formal charge of the ET cations, the strong electrostatic attractions between the ET cations and Br3^[-] support aggregation of the ET cations, allowing sufficient π-π overlap for delocalization of the π-electrons. The crystal shows stable metallic behavior down to low temperatures, being consistent with the metallic band structure with two-dimensional Fermi surfaces and Pauli-like paramagnetism down to low temperatures. The lack of any indication of instability in the metallic phase due to correlation effects is considered to result from an ionic-crystal-like structure, in which the lattice is more resistant toward lattice deformation and/or shrinkage than in typical partially oxidized salts with low formal charges. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/52228 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 稲辺 保
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