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The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is?
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The compound of molecular formula c8 h8o has a formula infrared absorp...
Identification of the Compound
The molecular formula C8H8O, along with the infrared absorption band near 1690 cm-1, suggests the presence of a carbonyl group (C=O). This band typically indicates the presence of a ketone or an aldehyde.
Infrared Absorption Analysis
- The absorption band near 1690 cm-1 is characteristic of:
- Aldehydes: Generally show C=O stretching around 1720-1740 cm-1.
- Ketones: Typically exhibit C=O stretching around 1700-1725 cm-1.
Given that the band is at 1690 cm-1, it is more indicative of a ketone due to its lower frequency.
Possible Structures
Considering the formula C8H8O, the most likely structure is 1-phenylethanone (also known as acetophenone). This structure consists of:
- A phenyl group (C6H5) linked to a carbonyl group (C=O).
- A methyl group (–CH3) attached to the carbonyl carbon.
This structure fulfills the molecular formula and aligns with the IR absorption data.
Conclusion
Based on the molecular formula C8H8O and the IR absorption band at 1690 cm-1, the most plausible structure is 1-phenylethanone. This compound's features not only fit the formula but also correspond to the spectral data indicating a ketone functional group.
The molecular formula C8H8O, along with the infrared absorption band near 1690 cm-1, suggests the presence of a carbonyl group (C=O). This band typically indicates the presence of a ketone or an aldehyde.
Infrared Absorption Analysis
- The absorption band near 1690 cm-1 is characteristic of:
- Aldehydes: Generally show C=O stretching around 1720-1740 cm-1.
- Ketones: Typically exhibit C=O stretching around 1700-1725 cm-1.
Given that the band is at 1690 cm-1, it is more indicative of a ketone due to its lower frequency.
Possible Structures
Considering the formula C8H8O, the most likely structure is 1-phenylethanone (also known as acetophenone). This structure consists of:
- A phenyl group (C6H5) linked to a carbonyl group (C=O).
- A methyl group (–CH3) attached to the carbonyl carbon.
This structure fulfills the molecular formula and aligns with the IR absorption data.
Conclusion
Based on the molecular formula C8H8O and the IR absorption band at 1690 cm-1, the most plausible structure is 1-phenylethanone. This compound's features not only fit the formula but also correspond to the spectral data indicating a ketone functional group.
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The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is?
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The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is?.
The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The compound of molecular formula c8 h8o has a formula infrared absorption band near 1690cm-1 the most likely structure is?.
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