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Structural properties of charge-transfer complexes of multilayered [3.3]paracyclophanes |
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| Authors: | Masahiko Shibahara Motonori Watanabe Chang Yuan Kenta GotoTeruo Shinmyozu |
| Affiliation: | a Department of Chemistry, Faculty of Education and Welfare Science, Oita University, 700 Dannoharu, Oita 870-1192, Japan b Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, 6-10-1 Hakozaki, Fukuoka 812-8581, Japan c Department of Chemistry, Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Fukuoka 812-8581, Japan |
| Abstract: | In the solid state, multilayered [3.3]paracyclophanes (PCPs) 2-6 and tetracyanoethylene (TCNE) form charge-transfer (CT) complexes with a 1:1 stoichiometry. All the benzene rings overlapped each other. All the [3.3]PCP units and dione units assume chair conformations and the transannular distances are shorter than those of the corresponding free multilayered [3.3]PCP except for the dione unit in the four-layered dione 6. In the crystal-packing diagrams, the PCP and TCNE are located in alternating donor-acceptor stacking in columns, and effective short contacts are observed in the neighboring molecules. |
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