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MS, IR, & NMR spectrum of an unknown compound

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You are given a description and 3 spectrum of an unknown compound and you are asked to identify it based off of the MS, IR, & NMR spectrum. All work must be shown with reasoning behind how the answer was found.

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Solution Summary

The structure of a compound is elucidated using MS, Ir and NMR. All work and reasoning is included.

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Hello

Your compound is crotonaldehyde...most likely the trans isomer.

H b CH3 c
| |
C==C
| |
O==C H d
|
H a

Firstly, the UV absorbs in a range characteristic of conjugated ...

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