S/No | Peak/band (cm−1) | %T | Functional groups/assignment | Origin |
---|---|---|---|---|
A | ||||
1. | 2955.8 | 67.950 | Alkanes sp3 C-H stretch | C-H |
2. | 2926.0 | 62.776 | Alkanes sp3 C-H stretch | C-H |
3. | 2855.1 | 78.007 | Aldehyde C-H stretch | C-H |
4. | 1748.1 | 98.517 | Ester carbonyl C-O stretch | C=O |
5. | 1606.5 | 99.085 | Conjugated alkenes C-C | C=C |
6. | 1453.7 | 82.438 | Aromatic compounds C-C stretch | C=C |
7. | 1379.4 | 91.002 | Acyl C-O; phenol C-O stretch | C=O; C-O |
8. | 1237.5 | 97.513 | Aromatic ethers, aryl-O stretch | Ar-O-C |
9. | 1036.2 | 97.765 | Alkoxy C-O stretch | X-O-C |
10. | 905.7 | 97.513 | Mono-substituted alkene sp2 C-H bend | =C-H |
11. | 767.8 | 97.464 | Di-substituted aromatic sp2 C-H bend | =C-H |
12. | 726.8 | 87.966 | Mono-substituted aromatic sp2 C-H bend | =C-H |
13. | 693.3 | 94.726 | Di-substituted aromatic sp2 C-H bend | =C-H |
B | ||||
1. | 3444.1 | 87.566 | Dimeric O-H stretch | O-H |
2. | 2989.1 | 87.083 | Alkanes sp3 C-H stretch | C-H |
3. | 2907.3 | 95.394 | Alkanes sp3 C-H stretch | C-H |
4. | 2091.0 | 98.362 | Isothiocyanate (-SCN) stretch | -SCN |
5. | 1889.8 | 98.918 | Carboxylic acids C-O stretch | C=O |
6. | 1736.9 | 45.205 | Ester C-O stretch | C=O |
7. | 1654.9 | 88.777 | Amides C-O stretch | C=O |
8. | 1446.2 | 86.722 | Aromatic compounds C-C stretch | C=C |
9. | 1376.9 | 45.205 | Acyl C-O; phenol C-O stretch | C=O; C-O |
10. | 1237.5 | 26.947 | Skeletal C-C vibration | C-C |
11. | 1092.1 | 80.365 | Alkoxy C-O stretch | X-O-C |
12. | 1043.7 | 32.142 | Primary amine C-N stretch | C-N |
13. | 939.3 | 87.721 | Alkenes sp2 C-H bend | =C-H |
14. | 878.7 | 87.409 | Alkenes sp2 C-H bend | =C-H |
15. | 849.8 | 83.588 | Tri-substituted alkenes sp2 C-H bend | C-H |
16. | 786.5 | 85.048 | Di-substituted aromatic sp C-H bend | C-H |
17. | 733.0 | 83.080 | Mono-substituted aromatic C-H bend | C-H |
C | ||||
1. | 2955.8 | 83.080 | Alkanes sp3 C-H stretch | C-H |
2. | 2926.0 | 60.632 | Alkanes sp3 C-H stretch | C-H |
3. | 2858.9 | 89.315 | Alkanes sp3 C-H stretch | C-H |
4. | 2728.4 | 99.307 | Aldehyde C-H stretch | C-H |
5. | 1990.4 | 99.392 | Cyanate C-N stretch | -C≡N |
6. | 1748.1 | 99.203 | Esters C-O stretch | C=O |
7. | 1610.2 | 98.594 | Conjugated alkenes C-C stretch | C=C |
8. | 1457.4 | 91.799 | Aromatic ring stretch | C=C |
9. | 1379.1 | 96.026 | Nitro compounds NO2 stretch | -N=O |
10. | 1155.5 | 98.738 | Tertiary amine C-N stretch | C-N |
11. | 1032.5 | 98.385 | Primary amine C-N stretch | C-N |
12. | 909.5 | 98.686 | Vinyl C-H bend | C-H |
13. | 805.1 | 98.057 | Di-substituted aromatic C-H bend | C-H |
14. | 767.8 | 97.557 | Di-substituted aromatic C-H bend | C-H |
15. | 730.6 | 95.929 | Cis-alkenes sp2 C-H bend | C-H |
16. | 697.0 | 96.671 | Cis-alkenes sp2 C-H bend | C-H |
D | ||||
1. | 3615.5 | 97.573 | Primary amines N-H stretch | N-H |
2. | 3391.9 | 94.951 | Primary amines N-H stretch | N-H |
3. | 3056.4 | 96.541 | Aromatic compound C-H stretch | C-H |
4. | 2974.4 | 92.265 | Alkanes sp3 C-H stretch | C-H |
5. | 2892.4 | 96.394 | Alkanes sp3 C-H stretch | C-H |
6. | 2307.2 | 99.009 | Alkynes sp C-C stretch | C≡C |
7. | 1733.2 | 95.893 | Aldehyde C-O stretch | C=O |
8. | 1636.3 | 98.056 | Amides C-O stretch | C=O |
9. | 1423.8 | 94.187 | Alkanes sp3 C-H bend | C-H |
10. | 1267.3 | 60.465 | Alkyl & aryl halides (C-F stretch) | C-F |
11. | 1047.4 | 75.523 | Alkoxy C-O stretch | X-O-C |
12. | 879.7 | 89.739 | Alkenes sp2 C-H bend | =C-H |
13. | 730.6 | 12.893 | Para-aromatic sp2 C-H bend | C-H |
E | ||||
1. | 3444.1 | 89.445 | Alcohols O-H stretch | O-H |
2. | 2981.9 | 87.541 | Alkanes sp3 C-H stretch | C-H |
3. | 2907.3 | 95.268 | Aldehydes C-H stretch | C-H |
4. | 2091.0 | 98.579 | Alkynes sp C-C stretch | C≡C |
5. | 1889.8 | 98.809 | Carboxylic acid C-O stretch | C=O |
6. | 1736.9 | 44.150 | Aldehyde C-O stretch | C=O |
7. | 1446.2 | 87.344 | Aromatic compounds C-C stretch | C=C |
8. | 1375.4 | 60.518 | Nitro compounds NO2 stretch | -N=O |
9. | 1237.5 | 27.455 | Aromatic phosphates P-O-C stretch | P-O-C |
10. | 1095.8 | 82.220 | Alkoxy C-O stretch | X-O-C |
11. | 1043.7 | 33.483 | Primary amine C-N stretch | C-N |
12. | 878.7 | 89.082 | Aromatic phosphates P-O-C stretch | P-O-C |
13. | 849.8 | 83.047 | Tri-substituted alkenes sp2 C-H bend | C-H |
14. | 785.5 | 86.047 | Cis-alkenes sp2 C-H bend | C-H |
15. | 738.0 | 74.085 | Cis-alkenes sp2 C-H bend | C-H |
16. | 704.5 | 83.018 | Cis-alkenes sp2 C-H bend | C-H |
F | ||||
1. | 3410.5 | 77.486 | Alcohols O-H stretch | O-H |
2. | 2981.9 | 85.453 | Alkanes sp3 C-H stretch | C-H |
3. | 2907.3 | 93.016 | Alkanes sp3 C-H stretch | C-H |
4. | 1725.8 | 56.071 | Aldehyde C-O stretch | C=O |
5. | 1446.2 | 86.294 | Aromatic compounds C-C stretch | C=C |
6. | 1375.4 | 62.498 | Nitro compounds NO2 stretch | -N=O |
7. | 1241.2 | 40.429 | Acyl C-O; phenol C-O stretch | C-O |
8. | 1088.4 | 77.450 | Alkoxy C-O stretch | X-O-C |
9. | 1043.7 | 35.790 | Alkoxy C-O stretch | X-O-C |
10. | 939.3 | 88.215 | Mono-alkenes sp2 C-H bend | C-H |
11. | 879.7 | 79.321 | Alkene sp2 C-H bend | C-H |
12. | 849.8 | 81.398 | Tri-substituted alkenes sp2 C-H bend | C-H |