Nano-CL-20/HMX Cocrystal Explosive for Significantly Reduced Mechanical Sensitivity

Table 2

Assignment of the major bands of the FT-IR spectra of raw CL-20, raw HMX, and CL-20/HMX cocrystals.

Assignments	CL-20	Cocrystal	HMX	Assignments
C–H stretching	3045	3033	3036	–CH2– stretching
	3017	2856	3027
Asymmetric stretching of –NO2	1607	1604
	1590	1576	1564	Asymmetric stretching of –NO2
	1568	1527
		1456	1462	–CH2– deformation
		1432	1433
		1395	1395
		1331	1348
		1275	1281	N–N stretching + symmetric stretching of –NO2
		1177	1203
		1144	1145	N–N stretching + ring stretching
		1096	1087
Symmetric stretching of –NO2	1383
	1329
	1285
	1051	1050
		991	965	Ring stretching
C–N stretching	944	945	946	Ring deformation
	884	882
C–C stretching	855	858
	831	835
	820	794
–NO2 deformation	758	763	761	–NO2 deformation
	751	749
	744	718
	738
		655	658	Ring deformation + –NO2 out-of-plane deformation
		622	627
		598	600