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. 2006 Jan 23;103(5):1178–1183. doi: 10.1073/pnas.0509011103

Table 1. Kinetic data for photoinduced processes of 16+ in deaerated acetonitrile solution in the temperature range 284–303 K.

T, K ket, s-1 kbet, s-1 kptz, liter·mol-1·s-1 krd, s-1 τbet, μs τrd, μs
284 1.5 × 105 (1.8 × 105) 1.4 × 105 (5.4 × 105) 7.9 × 108 (5.0 × 108) 8.1 × 102 7.4 (1.8) 1,230
288 1.7 × 105 (2.0 × 105) 1.4 × 105 (5.9 × 105) 8.4 × 108 (5.0 × 108) 1.8 × 103 7.1 (1.7) 550
293 1.7 × 105 (2.1 × 105) 1.4 × 105 (6.7 × 105) 7.6 × 108 (4.9 × 108) 3.5 × 103 7.0 (1.5) 285
299 1.8 × 105 (2.4 × 105) 1.4 × 105 (7.0 × 105) 7.8 × 108 (4.8 × 108) 1.3 × 104 7.1 (1.4) 78
303 2.5 × 105 (3.1 × 105) 1.5 × 105 (6.9 × 105) 8.1 × 108 (4.8 × 108) 2.1 × 104 6.7 (1.4) 47

The corresponding data for 26+ are reported in parentheses. Subscripts are defined as follows: et, photoinduced electron transfer (Scheme 2a, step 2); bet, back electron transfer (Scheme 2a, steps 5 and 6); ptz, bimolecular electron transfer between the A1+ unit and ptz+ (Scheme 2b, steps 9 and 10); rd, displacement of the ring from A1+ to the A22+ station corresponding to the shift of the transient absorption maximum of the A1+ unit (Scheme 2 a and b, step 4).