Table 1. Observed Average Lifetime (⟨τ⟩obs) and Populations (αic) and Lifetimes (τi) of Individual Decay Components Obtained through TCSPCa.
| sample | solvent | ⟨τ⟩obs | α0 (%) | α1c | τ1 (ns) | α2c | τ2 | α3c | τ3 |
|---|---|---|---|---|---|---|---|---|---|
| 2-AP riboside | B | 9.17 | 0 | 2.9 | 2.58 | 97.1 | 9.37 | ||
| 2-AP riboside | B+E | 8.40 | 0 | 10.9 | 1.25 | 89.1 | 9.28 | ||
| (2-AP)(2-AP) | B | 2.95 | 68.6 | 27.5 | 2.03 | 3.9 | 9.46 | ||
| (2-AP)(2-AP) | B+E | 4.16 | 42.3 | 47.7 | 3.55 | 10.0 | 7.05 | ||
| (2-AP)C | B | 5.02 | 54.3 | 4.0 | 0.29 | 28.7 | 3.65 | 13.0 | 9.49 |
| C(2-AP) | B | 2.51 | 42.0 | 11.5 | 0.23 | 41.3 | 2.43 | 5.2 | 8.35 |
| C(2-AP)C | B | 4.11 | 77.0 | 15.2 | 2.59 | 7.8 | 7.11 | ||
| C(2-AP)C | B+E | 5.14 | 55.8 | 15.1 | 2.77 | 29.1 | 6.36 |
a
α0 is a dark population whose decays are not resolved (τ < 200 ps). The populations αic have been corrected to account for the presence of the dark population (see Experimental Methods for details). “B”, aqueous buffer; “B+E”, buffer containing 30% ethanol.