BRAINCAKEInfra Red Spectrum - 7
Infrared spectrum 7: identifying an unknown, C4H8O
An unknown compound has the molecular formula C4H8O. Possible structures include butanal, butanone and but-3-en-1-ol. Its infrared spectrum shows:
• a strong, sharp absorption at 1715 cm-1
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Key terms in this lesson
- ketone
- An organic compound containing a C=O group bonded to two carbon atoms within the chain.
- aldehyde
- An organic compound containing the -CHO group, in which a carbon-oxygen double bond lies at the end of the carbon chain.
More in Infra-red Spectroscopy
- Characteristic Absorptions
- Infra Red Spectrum - 1
- Infra Red Spectrum - 2
- Infra Red Spectrum - 3
- Infra Red Spectrum - 4
- Infra Red Spectrum - 5
- Infra Red Spectrum - 6
- Infra Red Spectrum - 8
All 10 lessons in Infra-red Spectroscopy · All Edexcel AS-level Chemistry topics