Table 1 FTIR data of FB, BZ, their physical mixture and cocrystals
Chemical bond | FB | BZ | Physical mixture | Cocrystals |
|---|---|---|---|---|
C–H stretch | 2876, 2984 (aliphatic and aromatic) |  |  |  |
C = O stretch | 1648 | 1684 (Carbonyl) | 1648 (Carbonyl) | 1702 (Carbonyl) |
C–O stretch | 1246–1288 (Arylkyl) | 1175–1279 (Acidic) | 2992 (Arylkyl) | 1287 (Arylkyl) |
1279 (Acidic) | 1098 (Dialkyl ether) | |||
C–O stretch | 1091 (Dialkyl ether) |  |  |  |
Cl (Short) | 761 (Halogen) | Â | 762 (Halogen) | Â |
O–H Stretch |  | 3609–3794 (Alcohol) |  |  |
Cl–H (Medium) |  |  |  | 764 (acid–halogen interaction) |