Table 1.

Extracted population decay times (T₁), and the best fit parameters for the anisotropy decay. The error bars report the 95% confidence intervals.

	Population Decay	Anisotropy Decayc
	T1 (ps)	a1	t1,or (ps)	a2	t2,or (ps)
1PMe3	4.82 ± 0.03a	0.06 ± 0.02	3.1 ± 0.8	0.28 ± 0.02	21 ±2
1PMe2Ph	4.42 ± 0.02a	0.05 ± 0.01	2.5 ± 0.7	0.30 ± 0.01	37 ± 5
1PMePh2	4.57 ± 0.02a	0.02 ± 0.01	2.7 ± 1.8	0.32 ± 0.01	59 ± 12
Free ${\text{N}}_3^{-}$	2.3 ± 0.4 (7%)b 15.5 ± 0.2 (93%)b	0.18 ± 0.01	1.2 ± 0.1	0.10 ± 0.01	6.4 ± 0.4

^aPopulation decay of the 1^PR3 series is fit with a single exponential function.

^bPopulation decay of free ${\text{N}}_3^{-}$ is fit with a biexponential function, and the values in parentheses are the amplitude percentage for eachcomponent.

^cThe anisotropy decay was fit with the following expression: $\text{r}(\text{t})={\text{a}}_1\exp \left(-\frac{\text{t}}{{\text{t}}_{1,\text{or}}}\right)+{\text{a}}_2\exp \left(-\frac{\text{t}}{{\text{t}}_{2,\text{or}}}\right)$.