期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 20, 期 21, 页码 6494-6504出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201304235
关键词
absorption; chromophores; dyes; pigments; fluorescence; photophysics
资金
- Deutsche Forschungsgemeinschaft [SFB 767, TP B3]
The reaction of POCl3-activated, readily soluble diketopyrrolopyrrole (DPP) with 2-aminoheteroaromatics to yield 1:1 and 1:2 hydrogen chelates is described. Complexation of these hydrogen chelates with boron reagents results in thermally and photochemically stable fluorescent dyes (PP-azacyanines). The 1:2 complexes in particular absorb at long wavelengths and are brightly fluorescing. The rich photophysics of the new compounds are presented. Both the pronounced vibrational fine structure of the S0S1 transitions and the observed fluorescence phenomena allow detailed conclusions to be made on the correlation between molecular structure and optical properties.
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