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Position ![]() |
Position ![]() |
Vibrational Mode |
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3300 | 3.03 | alkyne CH stretching |
3078 | 3.25 | olefinic CH2 asymmetric stretching |
3050 | 3.28 | aromatic CH stretching |
3010 | 3.32 | olefinic CH stretching |
2955 | 3.38 | aliphatic CH3 asymmetric stretching |
2925 | 3.42 | aliphatic CH2 asymmetric stretching |
2870 | 3.48 | aliphatic CH3 symmetric stretching |
2855 | 3.50 | aliphatic CH2 symmetric stretching |
2100 | 4.76 | alkyne CC stretching |
1900 | 5.26 | C = C = C stretching |
1550-1650 | 6.0 - 6.4 | C = C stretching |
1450 | 6.89 | aliphatic CH2 bending |
1375 | 7.27 | aliphatic CH3 symmetric bending |
970 | 10.3 | CH = CH out of plane bending |
890-910 | 10.9-11.2 | CH = CH2 out of plane bending |
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