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ago in Analytical Chemistry by (690 points)
What functional groups are present in an unknown compound based on the infrared spectrum obtained from infrared spectroscopy analysis?

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ago by (390 points)
As a chemist, I would need to see the actual infrared  IR  spectrum or have the specific absorption peaks provided to accurately identify the functional groups present in the unknown compound. However, I can provide you with a general guideline on how to interpret an IR spectrum and identify functional groups based on their characteristic absorption peaks:1. O-H stretch: Broad absorption peak around 3200-3600 cm indicates the presence of an alcohol  O-H  or carboxylic acid  O-H  functional group.2. N-H stretch: Sharp absorption peak around 3100-3500 cm indicates the presence of an amine  N-H  or amide  N-H  functional group.3. C-H stretch: Absorption peaks around 2800-3000 cm indicate the presence of alkane  C-H  functional groups, while peaks around 3000-3100 cm indicate the presence of alkene  C-H  or aromatic  C-H  functional groups.4. C=O stretch: Strong absorption peak around 1650-1750 cm indicates the presence of a carbonyl group, which can be found in aldehydes, ketones, carboxylic acids, esters, or amides.5. C=C stretch: Absorption peak around 1600-1680 cm indicates the presence of an alkene  C=C  functional group or an aromatic ring.6. CC or CN stretch: Absorption peaks around 2100-2260 cm indicate the presence of an alkyne  CC  or nitrile  CN  functional group.7. C-O stretch: Absorption peaks around 1000-1300 cm indicate the presence of an ether  C-O , ester  C-O , or carboxylic acid  C-O  functional group.Please provide the specific absorption peaks or the actual IR spectrum for a more accurate identification of the functional groups present in the unknown compound.
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