The C–N stretching vibration of aliphatic amines is observed as medium or weak bands in the region 1250-1020 cm-1. In aromatic amines, the band is usually strong and in the region 1335-1250 cm-1.
The C–N stretching vibration of aliphatic amines is observed as medium or weak bands in the region 1250-1020 cm-1. In aromatic amines, the band is usually strong and in the region 1335-1250 cm-1.