. Author manuscript; available in PMC: 2010 May 14.

Published in final edited form as: J Struct Biol. 2009 Jun 28;168(3):539–547. doi: 10.1016/j.jsb.2009.06.018

Table 3.

Wavenumbers and assignment of the bands observed in the FT-IR spectra of the chitin samples shown in Fig. 8.

I. basta Wavenumber/cm⁻¹	α-Chitin Wavenumber/cm⁻¹	β-Chitin (T. rotula) Wavenumber/cm⁻¹	Assignment
897	895	890	CH deformation (o.o.p.), C1 axial (β bond)
920^*	919		CH_X deformation (o.o.p.)
		926
951	953	954
973^*	976^*	971
		993^*	C–O–C/C–O stretching
1013^*	1012^*	1014^*
1027	1028	1025
		1032^*
		1041^*
		1064
1071	1073	1078
		1103^*
		1109
1115	1115
		1122
		1136
1159	1157	1154
1204	1205	1202	Amide III
1230^*	1235	1237
		1246
1263	1261	1265
		1305^*
1310	1312	1312
		1330
		1364^*	CH_X deformation
		1374
1378	1378	1379
1415	1415	1420^*
1430	1429	1432
		1456
1559	1558	1562	Amide II
1633^*	1630	1630	Amide I
1662	1660	1660^*

= shoulder, o.o.p. = out of plane.