Vibrational and Compositional Analysis Associated with the Color of Guadua angustifolia Kunth Variety Bicolor (GAKVB)

Table 2

IR analysis of the green section of the exterior wall of GAKVB.

Number	Experimental wavenumber (cm^−1)	Reference wavenumber (cm^−1)	Group	References
1	467	457	Si–O–Si	[35]
	854	850	Si–O–Si
	1061	1078	SiO2
	1352	1250–1500	C–H
	1378	1250–1500	C–H
	1488	1250–1500	C–H
	1636	1650	H2O
	2926	2830–3000	C–H
	2996	2830–3000	C–H
	3415	3000–3750	O–H
2	854	880	Al–OH–Mg	[27, 36]
3	1061	1060	C–O; O–C–H	[27, 37]
4	1196	1199	Lignin, acetate	[38]
5	1240	1237
6	1352	1380	C–H asymmetric	[25]
7	1488	1473	C–H symmetric	[26]
8	1513	1513	Benzene	[39]
9	1636	1675	2-Methoxy p-quinone	[26, 40]
		1620	H2O	[27]
10	1702	1710–1685	Unsaturated aldehydes
11	1734	1734	Ester (C=O)	[38]
12	3415	3400–3200	H2O	[27]