Intramolecular excimer of DI(1-pyrenylmethyleneoxycarbonyl) alkanes |
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| Authors: | Masahide Yamamoto Keigo Goshiki Toshiji Kanaya Yasunori Nishijima |
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| Institution: | Department of Polymer Chemistry, Kyoto University, Yoshida, Kyoto, Japan |
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| Abstract: | Intramolecular excimer emission of a series of di(1-pyrenylmethyleneoxycarbonyl)alkanes (n = 0–22) has been studied under photostationary conditions. The intramolecular excimer formation rate constant decreases monotonously with increasing number of methylene units of the chains in the low temperature region. The temperature dependence of the rate constant for each sample was studied to give an apparent activation energy of ca. 5 kcal/mol. |
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| Keywords: | To whom correspondence should be addressed |
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