“…More precisely, the characteristic vibrational bands of 707 and 2089 cm −1 could be attributed to the S-C and C-N groups. 30,31 At the same time, the broad peak at 3450 cm −1 for all of the prepared samples could be attributed to the ν(OH) stretching, and the weak band at 1620 cm −1 indicated that the composite existed in the AgSCN structure. The bands at 521, 768, 1255 and 3454 cm −1 were attributed to the Fe-O, C-H vibration of the benzene rings, and the C-N and N-H vibrations of the amino group, respectively.…”