IBU IBU-CHL IBU-JTCNQ IBU-BTB IBU-MO IBU-PA Assignment
3150 - - - - - ν(OH)
2954, 2922
2870
2954, 2922
2870
2954, 2922
2870
2954, 2922
2870
2954, 2922
2870
2956, 2924
2873
ν(C-H)
- - 2729, 2630 - - - ν(N-H)
- - 2341, 2374 - - - ν(C≡N)
1720 1718 1720 1720 1720 1710 ν(C=O)
- - - - - 1683 ν(NO2)
1653 1628 1654 1654 1654 1628 ν(C=C)
1558, 1508 1552, 1498 1558, 1508 1562, 1508 1548, 1419 1562, 1508 1548, 1419 1562, 1508 1548 ν(C-H) deformation
- - - - 1361 1342 ν(C-N)
1321 1324 1323 1323 1323 1321 ν(C-C)
1184, 1121 1158 1168 1184 1184 1151 ν(C-O)
- - - - - - ν(C-Br)
- - - - - - ν(S=O)
970, 935 989, 935 970 935 939 918 ν(C-H) in plane
848 854 866 866 848, 823 866 δrock CH2
740, 680 752, 690 746, 634 779 779 783 δ(COO)
- - - - - 704 ν(NO2)
- - - 669 667, 630 - ν(S-O)
588, 522 572 588, 522 588, 522 574, 522 522 ring deformation
Table 7: Infrared frequencies and their assignments.
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