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(a) Molecular structure and DFT-optimized space-filling model of TANI-NHC(O)C5H10N(CH3)3+Br– (TANI-PTAB). (b) Concentration dependent UV–vis spectra of TANI-PTAB in water (arrow indicates change on increasing concentration), inset: linear dependence of absorbance on concentration (values taken at λmax = 580 nm). (c) Critical aggregation concentration for aqueous TANI-PTAB solution, measured by pyrene fluorescence, CAC = 1 × 10–4 M.
