The crystal structure of tetramethyltetraselenafulvalenium perrhenate, (TMTSF)(ReO4)(C2H3Cl3)0.25.
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概要
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The crystal structure of (TMTSF)(ReO<SUB>4</SUB>)(C<SUB>2</SUB>H<SUB>3</SUB>Cl<SUB>3</SUB>)<SUB>2.25</SUB> was determined. The crystals are monoclinic P2/c, <I>a</I>=18.573(3), <I>b</I>=7.418(2), <I>c</I>=26.210(6)Å, β=107.85(2)°, <I>Z</I>=8. TMTSF molecules are stacked to form diadic columns along the b axis. The mode of intermolecular overlapping between adjacent TMTSF molecules shows a new mode of overlapping. The strong alternation of the intermolecular Se–Se distances along the TMTSF columns indicates that this compound is a Peierls insulator, which is consistent with the semiconducting behavior. The Peierls instability is accompanied by a bending distortion of the planar TMTSF molecules. The roomtemperature conductivity is 3×10<SUP>−4</SUP> (Ω cm)<SUP>−1</SUP>, and the activation energy is 0.18eV. There are some short Se–O contacts between ReO<SUB>4</SUB> anions and TMTSF stacks. The solvent molecnles (C<SUB>2</SUB>H<SUB>3</SUB>Cl<SUB>3</SUB>) are located in the channel formed along the b axis.
- 公益社団法人 日本化学会の論文
著者
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Inokuchi Hiroo
Institute For Molecular Science
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Kobayashi Hayao
Department Of Chemistry Faculty Of Science Toho University
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Kobayashi Akiko
Department Of Biopharmaceutics Meiji Pharmaceutical University
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SAITO Gunzi
Institute for Molecular Science
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Sasaki Yukiyoshi
Department of Chemistry and The Research Centre for Spectrochemistry, Faculty of Science, The University of Tokyo
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