Figure 1.

Bridge-size dependence of hole transport in DNA strands: G⁺(TTG)_nGG DNA with N = 1–4. (a) The ratio φ of the yields of GGG and of all the products P_j (N = 1…N). (b) The ratio φ′ of the yields of GGG and of P₁. Experimental data of Giese et al. (ref. 19 and S.W. and B.G., unpublished data) are marked by open squares with error bars. The calculated results from the numerical solution of Scheme S2 are, for the solid lines, k_r/k = 0.08, k_d/k = 0.08, and k_t/k = 0.6 and, for the dotted lines, k_r/k = 0.1, k_d/k = 0.08, and k_t/k = 1.1.