Table 3 Spectroscopic data for 2-aryl-3-hydroxymethyl imidazo[1,2-a]pyridines 6
From: Fluorescent property of 3-hydroxymethyl imidazo[1,2-a]pyridine and pyrimidine derivatives
UV / Vis | Fluorescence | ||||
|---|---|---|---|---|---|
Compound | Aryl | Absλ max(nm) | λ ex (nm) | λ em (nm) | I* |
1 | --- | 318 | 320 | 376 | 101.9 |
6a | C6H5 | 320 | 320 | 381.6 | 346.91 |
6b | 4’Cl-C6H4 | 323 | 320 | 381 | 147.17 |
6c | 4’F-C6H4 | 320 | 320 | 380.4 | 340.42 |
6d | 4’CH3-C6H4 | 323 | 320 | 381.2 | 306.31 |
6e | 4’CH3O-C6H4 | 323 | 320 | 383.6 | 884.37 |
6f | 3’,4’di- CH3O-C6H3 | 323 | 320 | 385.6 | 878.18 |
6g | 4’NO2-C6H4 | 347 | 347 | - | - |