Table 1.
Donor-acceptor couplings (HDA) for electron and hole transfer were computed as described in Section 4. Electron transfer rates are computed from Eq. (1) using the maximum calculated HDA value (|HDA|2 = maximum[HDA(electron transfer)2, HDA(hole transfer)2] divided by the square root of six to account for all of the bipyridine ligands) and assuming λ=0.9 eV. Driving forces and experimental rates are taken from references 1 and 6
| Wire | MD RMS HDA (electron transfer) (eV) |
MD RMS HDA (hole transfer) (eV) |
Driving Force, -ΔG (eV) |
ET rate Computed (s-1) |
ET rate Experimental (s-1) |
|---|---|---|---|---|---|
| [bpyRu-C13-Im]2+ | 1.5×10-6 | 5.1×10-7 | 0.9 | 1.6×104 | 2×104 [1] |
| [bpyRu-C11-Ad]2+ | 1.7×10-6 | 8.6×10-7 | 0.9 | 2.1×104 | 2×104 [1] |
| [bpyRu-C11-EB]2+ | 6.7×10-7 | 3.5×10-7 | 0.9 | 3.3×103 | 2×104 [1] |
| [bpyRu-F8bp-Im]2+ | 8.3×10-5 | 2.4×10-4 | 0.32 | 1.1×107 | 4×106 [6] |
| [tmbpyRu-F8bp-Im]2+ | 8.3×10-5 | 2.4×10-4 | 0.45 | 4.7×107 | 3×107 [6] |
| [bpyRu-F8bp-Ad]2+ | 2.6×10-6 | 1.1×10-6 | 0.32 | 1.3×103 | NA |