Synthesis and Structures of Neutral Crystals and Charge-Transfer Salts of Selenium Containing TMET-TTP Derivatives
-
- Minoru Ashizawa
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of TechnologyO-okayama, Meguro-ku, Tokyo 152-8552
-
- Hirofumi Nii
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of TechnologyO-okayama, Meguro-ku, Tokyo 152-8552
-
- Takehiko Mori
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of TechnologyO-okayama, Meguro-ku, Tokyo 152-8552
-
- Yohji Misaki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto UniversityYoshida, Kyoto 606-8501
-
- Kazuyoshi Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto UniversityYoshida, Kyoto 606-8501
-
- Kazuo Takimiya
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima UniversityHigashi-Hiroshima 739-8527
-
- Tetsuo Otsubo
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima UniversityHigashi-Hiroshima 739-8527
説明
<jats:title>Abstract</jats:title> <jats:p>TMET-TTP derivatives in which one or both of the outer 1,3-dithiole rings are replaced by 1,3-diselenole rings (1a–1d) have been prepared (TMET-TTP: 2-[4,5-bis(methylthio)-1,3-dithiol-2-ylidene]-5-(4,5-ethylenedithio-1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalene). The neutral crystal of 1c has β-type uniform stacks, whereas 1a shows a θ-type molecular arrangement in the neutral crystal. The AsF6 salts of 1a and 1d have a θ-type structure similarly to other TMET-TTP salts. In spite of the relatively small dihedral angle (117°), the conductivity is weakly semiconductive from room temperature. Selenium substitution causes unbalance of the diagonal intermolecular interactions, which may be the origin of a deviation from the universal phase diagram of the θ-phase.</jats:p>
収録刊行物
-
- Bulletin of the Chemical Society of Japan
-
Bulletin of the Chemical Society of Japan 76 (11), 2091-2097, 2003-11-01
Oxford University Press (OUP)
