Table 2.

IR frequencies of the functional groups in OTC and DXC.

OTC		DXC
ν [cm−1]	Functional Group	ν [cm−1]	Functional Group
3145	νO–H	3281	νO–H
2997	νCH2	2992	νCH2
2925	νCH2	2968	νCH2
1616	νC=O
1579	δN–H	1571	δN–H
1538	νC=C aromatic	1553	νC=C aromatic
1331	δCH3	1331	δCH3
1070	νC–OH	1084	νC–OH