Figure 4

The fluorescence spectra of 1c–g (2.0 × 10–4 mol dm–3) in nitrogen-saturated toluene at room temperature. The excitation wavelength was 339 nm.
The fluorescence spectra of 1c–g (2.0 × 10–4 mol dm–3) in nitrogen-saturated toluene at room temperature. The excitation wavelength was 339 nm.