Table 2.

Assignment of vibrations and corresponding wavenumbers to characteristic bands in IR spectra of prepared materials with loaded drug.

Sample	ν(CH)ar	δ(CH)	ν(CCl)	ν(C=C)ar	ν(NH)	ν(COO−)s	ν(COO−)as	δ(NH)
SBA-15(C)/DIC	3080	1454	746	1555	3420	1450	1509	1611
				1580	3274
SBA-15(C)-800/DIC	3082	1454	748	1555	3413	1451	1510	1609
				1580	3280
SBA-15(C)-1300/DIC	3081	1453	746	1555	3421	1450	1511	1612
				1580	3274
SBA-15(C)-2000/DIC	3080	1454	748	1555	3418	1453	1510	1610
				1580	3271