Table 2. Optical characteristic properties of synthesized compounds.

	Quantum yield		Emission maximum [nm]
	THF	DCM	λ 1	λ 2	λ 3	λ 4
15C4	0.29	0.30	384	406	429	—
16C4	0.27	0.32	384	406	429	495
18C4	0.38	0.46	384	406	—	486
20C4	0.32	0.36	384	406	426	489
18C6	0.37	0.46	384	406	—	489