Influence of Monomer Concentration on the Morphologies and Electrochemical Properties of PEDOT, PANI, and PPy Prepared from Aqueous Solution

Table 2

Assignments of the Raman bands for the PEDOT, PANI, and PPy.

Vibrational wavenumbers (cm^−1)			Assignments
PEDOT	PANI	PPy
520, 587, 848, 990			Oxyethylene ring deformation
698			Cα-S- ring deformation
1115			C-O-C ring deformation
1265			Cα- interring stretching
1360			Cβ- stretching
1422, 1440			Symmetric Cα=Cβ (stretch)
1515, 1573			Asymmetric Cα=Cβ stretching
	1628		C-C in benzene ring (stretch)
	1610		C=C in quinone ring (stretch)
	1513		N-H bending
	1458, 1440		C=N and CH=CH (stretch)
	1359		C-N^+ polarons (stretch)
	1255		C-N in benzenoid ring (stretch)
	1140		C-H in semiquinone ring (bend)
	855		Benzenoid ring deformation in emeraldine salt
	815		Quinoid ring deformation
	608, 624		Benzenoid ring in-plane deformation
		984, 928	Ring deformation
		1105, 1066	Symmetrical C-H in plane bending
		1257	Asymmetrical C-H in plane bending
		1319, 1295	Asymmetrical C-N stretching
		1608	C=C stretching