International Journal of Spectroscopy / 2013 / Article / Tab 1

Research Article

Infrared Spectroscopic Characterization of CIT-6 and a Family of *BEA Zeolites

Table 1

Mid-IR peaks for CIT-6 and its derivatives. The notations are as follows: w is weak intensity, m is medium intensity, s is strong intensity, and sh is shoulder.

As-made CIT-6CalcinedZn CIT-6High- Si *BEALow- Si *BEAAluminumPure Si *BEAAssignment

1484 m1484 m1484 w1484 wδ C–H and (for Aluminum sample only) [36, 37]
1454 w1455 w1459 m
1441 w1438 m
1393 m1394 w1394 w1394 m
1367 w1369 w1366 w1366 w1367 w1366 m
1352 m

1207 s1220 s1203 s1216 s1226 s1200 s1226 s (O–T–O) [14, 15]
1165 s1165 s1165 m
1103 sh, s
1060 s1088 s1056 s1080 s1086 s1070 s1060 s
991 s998 s

961 sh, m952 m949 mAcetic acid [37]

820 sh, m816 m820 sh, m821 sh, w820 m (O–T–O) [14, 15]
777 m792 m788 m795 m795 m789 m795 m
718 w732 w723 w731 w731 w728 w730 w

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