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Shirahata T, Kohno S, Furuta K, Katayama S, Suzuki K, Kawamoto T, Mori T, Misaki Y. Organic Molecular Conductors Based on Tetramethyl-TTP: Structural and Electrical Properties Modulated by the Anion Size and Shape. Inorg Chem 2022; 61:7754-7764. [PMID: 35549245 DOI: 10.1021/acs.inorgchem.1c04004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The tetramethyl derivative of bis-fused tetrathiafulvalene, 2,5-bis(4,5-dimethyl-1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalene (TMTTP), has been successfully synthesized. Most of the radical cation salts consisting of TMTTP feature a high electrical conductivity of σrt = 101 to 102 S cm-1 on a single crystal. The anion shape and size of TMTTP conductors modulate the electrical properties. The PF6- and AsF6- salts exhibit metallic conductivity down to 10 K, while the ReO4- and AuI2- salts show metal-to-insulator (MI) transition at 126 and 11 K, respectively. Single-crystal X-ray structure analysis of (TMTTP)2X (X = PF6, AsF6, BF4, and ReO4) and (TMTTP)3AuI2 reveals that the donor packing motif is categorized as the so-called β-type. The tight-binding band calculations of (TMTTP)2X (X = ReO4, BF4, PF6, and AsF6) suggest these salts are characterized by quasi-one-dimensional Fermi surfaces. The band calculation based on X-ray structure analysis of (TMTTP)2ReO4 at 100 K demonstrates that the MI transition of this salt is associated with the charge ordering with the zigzag stripe pattern.
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Affiliation(s)
- Takashi Shirahata
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan.,Research Unit for Development of Organic Superconductors, and Research Unit for Power Generation and Storage Materials, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Shuhei Kohno
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Keisuke Furuta
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Shogo Katayama
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Kento Suzuki
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Tadashi Kawamoto
- Department of Materials Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takehiko Mori
- Department of Materials Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yohji Misaki
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan.,Research Unit for Development of Organic Superconductors, and Research Unit for Power Generation and Storage Materials, Ehime University, Matsuyama, Ehime 790-8577, Japan
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Affiliation(s)
- J. P. Pouget
- a Laboratoire de Physique des Solides (CNRS URA 2) Bailment 510, Université Paris-Sud , 91405 , ORSAY , France
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Jérome D. Organic Conductors: From Charge Density Wave TTF−TCNQ to Superconducting (TMTSF)2PF6. Chem Rev 2004; 104:5565-92. [PMID: 15535660 DOI: 10.1021/cr030652g] [Citation(s) in RCA: 210] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Denis Jérome
- Laboratoire de Physique des Solides, UMR 8502, Université Paris-Sud, 91405 Orsay, France
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Chung M, Figueroa E, Kuo Y, Wang Y, Brill JW, Burgin T, Montgomery LK. Thermodynamics of the anion ordering transitions in (TMTSF)2ReO4 and (TMTSF)2BF4. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:9256-9263. [PMID: 10007159 DOI: 10.1103/physrevb.48.9256] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kang W, Cooper JR, Jérome D. Quantized Hall effect in the organic superconductor (TMTSF)2ReO4 (TMTSF=tetramethyltetraselenafulvalinium). PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:11467-11470. [PMID: 9996903 DOI: 10.1103/physrevb.43.11467] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Parkin SS, Coulon C, Moret R, Pouget JP. Incommensurate structural modulation and electronic localization in bis-tetramethyltetraselenafulvalene thiocyanate. PHYSICAL REVIEW. B, CONDENSED MATTER 1987; 36:2246-2250. [PMID: 9943071 DOI: 10.1103/physrevb.36.2246] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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