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We prepared water-soluble anthracene-cored poly(aryl ether) dendrimers wG1 and wG2, together with lipophilic dendrimers G1 and G2, and examined their photochemical properties. Water-soluble dendrimers wG1 and wG2 produced excimer emissions peaking at 463nm and 447nm, respectively, in water at a concentration of 10 −5 M, indicating that these dendrimers could form aggregates under highly diluted...
Photoirradiation of methylene-linked anthracene-guanine compounds, which are substituted at the 2 and 9 positions of the anthracene moiety, showed locally excited emission (LE) as well as intramolecular exciplex emission as a result of quenching of the excited singlet state of the anthracene moiety by the guanine moiety. This was confirmed by time-resolved fluorescence as well as steady-state spectroscopy...
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