an unknown has the formula C₆H₁₂O. The IR spectrum of this substance has a strong vibration near 1700 cm⁻¹ . Which structure below is consistent with these data?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter22: Organic And Biological Molecules
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an unknown has the formula C₆H₁₂O. The IR spectrum of this substance has a strong vibration near 1700 cm⁻¹ . Which structure below is consistent with these data?

The image shows chemical structures labeled as I, II, III, and IV:

I. A linear molecule with a hydroxyl (OH) group and a double bond in the carbon chain. It is a form of an unsaturated alcohol.

II. A branched molecule with a carbonyl group (C=O). This is likely a ketone due to its positioning within the molecule.

III. A cyclic ether with a five-membered ring and a methyl group attached to it. The presence of an oxygen atom in the ring classifies it as a cyclic ether or oxolane derivative.

IV. A cyclic alcohol with a hydroxyl (OH) group attached to a five-membered ring. This indicates a cyclic structure similar to cyclopentanol.

Each structure demonstrates different functional groups and structural arrangements, serving as a useful visual aid for understanding organic chemistry concepts related to alcohols, ketones, and ethers.
Transcribed Image Text:The image shows chemical structures labeled as I, II, III, and IV: I. A linear molecule with a hydroxyl (OH) group and a double bond in the carbon chain. It is a form of an unsaturated alcohol. II. A branched molecule with a carbonyl group (C=O). This is likely a ketone due to its positioning within the molecule. III. A cyclic ether with a five-membered ring and a methyl group attached to it. The presence of an oxygen atom in the ring classifies it as a cyclic ether or oxolane derivative. IV. A cyclic alcohol with a hydroxyl (OH) group attached to a five-membered ring. This indicates a cyclic structure similar to cyclopentanol. Each structure demonstrates different functional groups and structural arrangements, serving as a useful visual aid for understanding organic chemistry concepts related to alcohols, ketones, and ethers.
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