Then, FIG. 11 shows the absorption spectrum and the emission spectrum of 2PCCzPDBq in a toluene solution of 2PCCzPDBq, and FIG. 12 shows the absorption spectrum and the emission spectrum of 2PCCzPDBq in a thin film of 2PCCzPDBq. The spectra were measured with a UV-visible spectrophotometer (V550, produced by JASCO Corporation). The spectra of 2PCCzPDBq in the toluene solution of 2PCCzPDBq were measured with the toluene solution of 2PCCzPDBq put in a quartz cell. The spectra of 2PCCzPDBq in the thin film of 2PCCzPDBq were measured with a sample fabricated by deposition of 2PCCzPDBq on a quartz substrate by evaporation. Note that in the case of the absorption spectrum of 2PCCzPDBq in the toluene solution of 2PCCzPDBq, the absorption spectrum obtained by subtraction of the absorption spectra of the quartz cell and toluene from the measured spectrum is shown, and in the case of the absorption spectrum of 2PCCzPDBq in the thin film of 2PCCzPDBq, the absorption spectrum obtained by subtraction of the absorption spectrum of the quartz substrate from the measured spectrum is shown.
As shown in FIG. 11, in the case of 2PCCzPDBq in the toluene solution of 2PCCzPDBq, the absorption peaks were observed at approximately 305 nm and 385 nm, and the emission wavelength peak was observed at 450 nm (excitation wavelength: 305 nm). As shown in FIG. 12, in the case of 2PCCzPDBq in the thin film of 2PCCzPDBq, the absorption peaks were observed at approximately 209 nm, 258 nm, 307 nm, 336 nm, and 396 nm, and the emission wavelength peak was observed at 502 nm (excitation wavelength: 396 nm).
EXAMPLE 2
Synthesis Example 2
