Table 4 Spectroscopic data for 2-aryl-3-hydroxymethyl imidazo[1,2-a]pyrimidines 7
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* |
2 | --- | 229 | 230 | 414.8 | 205.58 |
7a | C6H5 | 247 | 247 | 437.6 | 432.44 |
7b | 4’Cl-C6H4 | 228 | 228 | 439.2 | 53.56 |
7c | 4’F-C6H4 | 240 | 240 | 437.2 | 542.19 |
7d | 4’CH3-C6H4 | 240 | 240 | 433.6 | 184.23 |
7e | 4’CH3O-C6H4 | 226 | 226 | 433.6 | 188.03 |
7f | 3’,4’di-CH3O-C6H3 | 344 | 344 | 432.4 | 428.32 |
7g | 4’NO2-C6H4 | 265 | 265 | 432 | 186.43 |