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Intramolecular hetero-dimer radical cation of naphthalene-phenanthrene and naphthalene-pyrene chromophores formation

✍ Scribed by Akira Tsuchida; Hiroshi Takamura; Masahide Yamamoto

Book ID: 103034307
Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 308 KB
Volume: 198
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)90070-4

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✦ Synopsis

The formation of the intramolecular naphthalene-phenanthrene hetero-dimer radical cation was observed by nanosecond laser photolysis in the visible and near-IR regions. A charge resonance band was observed at 1450 nm in acetonitrile at 298 K. The intramolecular naphthalene-pyrene hetero-dimer radical cation, however, could not be observed at room temperature due to the small stabilization energy of charge resonance. The ionization potentials of both constituent chromophores must be nearly equal for the hetero-dimer radical cation to be sufficiently stable.

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