Table 4 The effect of varying ultraviolet intensity on the quantum yield (Φ) of 1,3-butadiene
From: Reactivity and kinetics of 1,3-butadiene under ultraviolet irradiation at 254 nm
I/(μW cm−2) | k2/h−1 | I0/(μW cm−2) | I1/(μW cm−2) | I0–I1/(μW cm−2) | Φ |
|---|---|---|---|---|---|
25 | 0.001670 | 20 | 18.7 | 1.3 | 37.19 |
50 | 0.002417 | 38 | 35.2 | 2.8 | 24.99 |
100 | 0.003418 | 72 | 69 | 3 | 32.99 |
200 | 0.005297 | 133 | 127 | 6 | 25.56 |
300 | 0.007364 | 207 | 198 | 9 | 23.69 |
400 | 0.009555 | 280 | 272 | 8 | 34.58 |
500 | 0.01282 | 351 | 342 | 9 | 41.24 |