Table 1. Rate constants of hole transfer for (GT)_n and (GA)_n sequences.

(GT)n	kht*, 105 s-1	(GA)n	kht*, 105 s-1
2	11	2	570
3	5.9	3	230
4	2.2	4	130
6	0.67	6	31
8	0.31	8	13
12	0.12	12	6.2

^*Hole-transfer rate constants were determined by fitting the formation of PTZ^·+ to a single-exponential function. Experimental error was estimated to be within 10%.