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Beilstein J. Org. Chem. 2019, 15, 2133–2141, doi:10.3762/bjoc.15.210
Graphical Abstract
Figure 1: Structures of some representative triangulenium dyes. a) Rhodamine/fluorescine-like derivatives wit...
Figure 2: Examples of various types of SNAr reactions typical in triangulenium synthesis, exemplified with th...
Scheme 1: Synthesis of three novel SX-(DMP)3C+ PF6− ethylsulfanyl-substituted triarylmethylium salts.
Scheme 2: Synthetic route for the synthesis of S3-ADOTA+.
Scheme 3: Synthesis of S3-TOTA+ PF6− (6) and the mono ring closed xanthenium 7.
Scheme 4: Synthesis of S2-TOTA+ PF6− (8) and S1-TOTA+ PF6− (9).
Figure 3: UV–vis spectra in MeCN: S3-(DMP)3C+ (1, red), S2-(DMP)3C+ (2, green), and S1-(DMP)3C+ (3, blue).
Figure 4: UV–vis spectra in MeCN: S3-acridinium (4a, black) and S3-xanthenium (7, red). Inset: The 3D structu...
Figure 5: UV–vis spectra in CH2Cl2: S1-TOTA+ (9, blue line), S2-TOTA+ (8, red line), and S3-TOTA+ (6, black l...
Figure 6: UV–vis absorption and fluorescence spectra (λex = 485 nm) of 5a in CH2Cl2 solution. Calculated mole...
Figure 7: Normalized absorption and fluorescence spectra of 6 (S3-TOTA+), λex = 460 nm, and 8 (S2-TOTA+), λex...