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. 2019 Jun 26;116(28):13856–13861. doi: 10.1073/pnas.1908034116

Fig. 5.

Fig. 5.

Concentration-dependent (A) UV-vis absorption and (B) emission spectra of 1 in hexane–dichloromethane (9:1, vol/vol) mixtures at different concentrations from 2.0 × 10−6 to 1.3 × 10−4 M at room temperature. (Inset) A plot of the corresponding phosphorescence intensity ratio between 516 and 690 nm (I516/I690) in hexane–dichloromethane (9:1, vol/vol) mixtures at different concentrations. (C) Photographs of emission color changes in hexane–dichloromethane (9:1, vol/vol) mixtures at concentrations of 1.1 × 10−5, 9.0 × 10−6, and 4.0 × 10−6 M (from left to right).