CHEM 3342 Spectral Interpretation I Su 2010

CHEM 3342 Spectral Interpretation I Su 2010 - Name:_ CHEM...

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Name:____________________________________________________ CHEM 3342 Spectral Interpretation I (IR) Welch Summer 2010 Answer the following questions. Use a separate sheet of paper where necessary. 1. Compare the IR spectra shown below for hexane, 1-hexene, and 1-hexyne. Draw the structure of each compound and identify the following bands: Hexane : alkane C–H stretch, alkane C–H bend, methyl C–H bend 1-Hexene : alkene C–H stretch, alkane C–H stretch, C=C stretch, alkane C–H bend, methyl C–H bend, and terminal alkene C–H bend 1-Hexyne: alkyne C–H stretch, alkyne C≡C stretch, alkane C–H stretch, alkane C–H bend, and methyl C–H bend ***How does the C–H stretching frequency vary with the hybridization of the carbon atom? Relate this to the stretching frequencies for carbon–carbon bonds.
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CHEM 3342 Spectral interpretation I, page 2 of 5 2. Identify and name the non-alkane functional groups in the following molecules. Circle each functional group and write the name of the group beside it. a.
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CHEM 3342 Spectral Interpretation I Su 2010 - Name:_ CHEM...

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