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Syntheses and electronic properties of the nickel and palladium complexes of the octaethylporphyrin(M1)-(dihexylbithiophene)n-octaethylporphyrin(M2) system [OEP(M1)-(DHBTh)n-OEP(M2)] connected with the diacetylene linkage. A methodology for molecular design of the particular electronic structure |
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| Authors: | Naoto Hayashi Kazumine Mori Emiko Chikamatsu Keiko Miyabayashi Hiroyuki Higuchi |
| Institution: | a Department of Chemistry, Faculty of Science, Toyama University, 3190 Gofuku, Toyama, Toyama 930-8555, Japan b Division of Natural Science, Osaka Kyoiku University, 4-698-1 Asahi-oka, Kashiwara, Osaka 582-0026, Japan c School of Materials Science, JAIST (Hokuriku), 1-1 Asahi-dai, Tatsunokuchi, Noumi, Ishikawa 923-1292, Japan |
| Abstract: | The palladium complexes of highly extended π-electronic conjugation system, octaethylporphyrin(Pd)-(dihexylbithiophene)n-octaethylporphyrin(Pd) OEP(Pd)-(DHBTh)n-OEP(Pd), n=1-6], were synthesized, in which all the chromophores are connected with diacetylene linkage. The unsymmetrical derivatives of OEP(Ni)-DHBTh-OEP(Pd) were also successfully synthesized. Electronic properties of these symmetrical and unsymmetrical complexes were conclusively described, as compared with those of OEP(Ni)-(DHBTh)n-OEP(Ni). Based on the structure elements, a methodical guiding principle for molecular design of the particular electronic structure will be proposed. |
| Keywords: | Octaethylporphyrin Dihexylbithiophene Diacetylene Electronic property |
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