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. 2023 Jul 21;5(8):4174–4186. doi: 10.1021/acsaelm.3c00443

Table 2. Photophysical Characteristics of the Compounds.

compound λabsa,b,c, nm λPLa,b,c, nm ΦPLa ΦPLb ΦPLc S1, eV T1, eV ΔEST, eV
PyPhCz 340/340/380 399/407/411 0.04 0.02 0.02 3.77 3.12 0.65
PyPhDMAC 290/287/304 429/482/441 0.05 0.045 0.04 3.63 3.24 0.39
28PyPhPTZ 322/319/336 468/550/480 0.01 0.01 <0.01 3.19 2.67 0.52
PyPhPXZ 324/322/333 472/545/480 0.07 0.03 <0.01 3.38 2.82 0.56
a

Toluene solution.

b

THF solution.

c

Solid state. λabs is the wavelength of absorption maximum; λPL is the wavelength of photoluminescence maximum; Φ is photoluminescence quantum yield. The concentration of solutions was 10–5 M.