Electrosynthesis and Spectroscopic Characterization of Poly(o-Aminophenol) Film Electrodes

Table 2

Vibration modes observed by Raman spectroscopy in POAP modified Au electrodes at 0.1 V in 1 M HClO₄ [41].

Wavenumber/cm^−1	Vibration modes
1638	–C=N– stretching of quinonimine units
1593	>C=C< stretching of quinoid units or N–H^+ deformation vibration on secondary amines
1520	–C=C– stretching in the aromatic ring
1474	–C=N– stretching of quinoid units
1390	C–C stretching of quinoid units
1328	>C–N^•+– stretching
1160	C–H bending in plane
925	Perchlorate vibration band
576	Ring deformation of benzeniod units