Photopolymerization results of NB using Ru dimer/1/ITX photoinitiating system in CD2Cl2 ([NB] = 1 M, 510 equiv.). Irradiation conditions: 365 nm, 6.5 mW cm−2, 1 min.
| Entry | Precatalyst | Pre-catalyst/1/ITX (equiv.) | Conv.a (%) | σ cis b | M n-th c (kg mol−1) | M n-SEC d (kg mol−1) | Đ d |
|---|---|---|---|---|---|---|---|
| a | Ru-1 | 0/5/2.5 | 0 | n.d | n.d | n.d | n.d |
| b | Ru-1 | 1/0/0 | 1 | 9 | 0.36 | n.d. | n.d. |
| c | Ru-1 | 1/0/2.5 | 7 | 23 | 1.60 | n.d. | n.d. |
| d | Ru-1 | 1/5/2.5 | 78 | 52 | 18.69 | 146.8 | 3.02 |
| e | Ru-1 | 1/5/5 | 94 | 52 | 22.57 | 108.4 | 1.96 |
| fe | Ru-1 | 1/5/2.5 | 22 | 65 | 5.27 | 63.4 | 2.05 |
| g | Ru-2 | 1/5/2.5 | 69 | 52 | 16.43 | 447.2 | 1.59 |
| h | Ru-3 | 1/5/2.5 | 67 | 48 | 16.10 | n.d. | n.d. |
a
Determined by 1H-NMR.
b
Calculated from 1H-NMR spectrum.
c
Theoretical number average molar mass 
.
d
Experimental number average molar mass Mn-th obtained by SEC.
e
Irradiation at 405 nm, 4.7 mW cm−2, 1 min. n.d. means not determined due to the absence of reaction or the formation of an insoluble polymer.