Synthesis of meso-azulenylporphyrins |
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| Authors: | Kurotobi Kei Osuka Atsuhiro |
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| Institution: | Department of Chemistry, Graduate School of Science, Kyoto University, and CREST (Core Research for Evolutional Science and Technology) of Japan Science and Technology Agency (JST), Sakyo-ku, Kyoto 606-8502, Japan. |
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| Abstract: | reaction: see text] meso-Azulenylporphyrins 1-4 were prepared by Suzuki-Miyaura coupling or the Ziegler-Hafner method. 1-Azulenyl and 6-azulenyl groups are indeed acting as electron-donating and electron-accepting substituents toward Zn(II) porphyrin. Fluorescence of Zn(II) porphyrin in the dyads is strongly quenched depending upon substitution position of azulene in order of 2 > 1 > 4 > 3. |
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