| No. density (×1015 cm−3) | λa (nm) | ε × 10−4 (l mole−1 cm−1) |
STB-3/MeOH | 4.93 | 351 | 5.89 |
Method I | 8.69 | 345 | 5.16 |
Method II | 7.32 | 344 | 5.49 |
Method III | 5.20 | 347 | 5.96 |