Table 1.
Assignment of the fragmentation channels of AL∙H+ (m/z 215) observed upon HCD collisional excitation, and laser excitation at 2.68 and 5.06 eV. a,b
| Photofragment m/z | m/z Lost from AL∙H+ | HCD | 2.68 eV | 5.06 eV | Photofragment Results from Loss of Neutral |
|---|---|---|---|---|---|
| 188 | 27 | ✓ | ✓ (s) | ✓ (vs) | HCN |
| 172 | 43 | ✓ | ✓(w) | ✓ (s) | HNCO a |
| 170 | 45 | ✓ | ✓ (s) | ✓(w) | HCN + H2O |
| 144 | 71 | ✓ | ✓ (s) | ✓ (s) | (HNCO + CO) a Or, HCN + CO2 |
| 142 | 73 | ✓ | ✓(m) | ✓ (s) | HNCO + H2CO Or, HCN + H2O + CO |
| 130 | 85 | ✓ | ✓ (w) | ✓ (w) | HNCO + NCO |
| 117 | 98 | ✓ | ✓ (m) | ✓ (s) | (HNCO + CO + HCN) a |
| 92 | 123 | ✓ | ✓ (s) | ✓ (s) | HNCO + CO + (CN)2 |
| 90 | 125 | ✓ | ✓ (s) | ✓ (s) | HNCO + CO + 2HCN |
a Fragmentation channels observed in electron impact ionization of alloxazine containing molecules [30]. b vs is very strong, s is strong, m is medium, and w is weak.