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. Author manuscript; available in PMC: 2024 Jun 5.
Published in final edited form as: Angew Chem Int Ed Engl. 2023 Apr 27;62(23):e202216784. doi: 10.1002/anie.202216784

Figure 2.

Figure 2.

Absorption (dashed line) and emission (solid line, excitation 350 nm) spectra of 2 (green), 3 (blue), and 4 (red) in PBS. The absorption and emission spectra were normalized to 0.1 at 350 nm.