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

Table 1

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

Assignments	CL-20	Cocrystal	HMX	Assignments
C–H stretching	3045.8	3043.1
	3030.6	3033.3	3037.5	Asymmetric –CH2– stretch vibration
			3027.8
		3006.9	2991.7	Symmetric –CH2– stretch vibration
C–N stretching	1624.3
	1606.2	1603.4
Asymmetric –NO2 stretch vibration	1595.1	1560.4	1556.2	Asymmetric –NO2 stretch vibration
	1577.0
	1559.0
–NO2 symmetric stretching	1382.5	1382.5
	1333.9	1340.8	1347.8	N–N stretch vibration + symmetric stretch vibration
	1308.8	1322.7
	1274.1	1293.6
	1260.2	1272.7
	1246.3	1257.4
		1185.2	1189.3	Ring stretch vibration
C–H asymmetric stretching	1124.0	1126.8
N–N stretching	1086.5	1096.2
	1049.0	1050.4
	982.3	990.7
		940.6	950.4	Ring stretching
–NO2 deformation	854.5	878.1
	832.3	833.7	832.3	–NO2 deformation
Ring deformation	368.1	394.5
	343.1	355.6	359.8	Ring deformation
Lattice vibration	316.7	315.3
Cage deformation	261.1	280.6
	191.7	219.4
–NO2 deformation	126.3	119.4