Table 2. Photophysical data of comparisons.

Compound	λ em	φ a (%)	τ p (ns)	τ d (µs)	k r (107 s−1)
4CzIPNb	507	21/86	17.8	5.1	1.8
m-3CzIPNb	426	12/86	7.9	26.1	1.5
4-PTZBNc	513	—	4610	44.2	—
Diarylboryl-PTZd	485	20	5.11	5.07	3.9

^aPhotoluminescence quantum efficiency of the solution sample before/after Ar bubbling.

^bMeasured in toluene.

^cMeasured in film, τ_{phosphorescence} = 487.7 µs.

^dSolid-state luminescence properties.