Table 1. Photoluminescence Lifetime, τ, Quantum Yield, QY, Radiative Rate, Γ_r, and Non-Radiative Rate, Γ_nr, for the Five Compounds^a.

molecule	τ (ps)	QY	Γr (ns–1)	Γnr (ns–1)
c-P6·T6	627	0.7%	0.010	1.60
c-P6x·T6	682	1.3%	0.019	1.45
sEt-P11·(T6)2	271	0.5%	0.020	3.73
s-P11·(T6)2	343	0.8%	0.024	2.90
l-P6·T6	364	2.3%	0.064	2.69

^aDetails of measurements are given in the Supporting Information.