Highlight Rotate Markup Four infrared spectra are shown corresponding to four of

Question

Highlight Rotate Markup Four infrared spectra are shown corresponding to four of the following compounds. For each spectrum determine the structure. Explain how the peaks correspond to the structure. Tabulate your analysis. Spectra 1 Corresponds to compound (circle one) ABCDE Zones Absorption, cm-1 Functional group Base Value Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Spectra 2 Corresponds to compound (circle one) ABCDE Functional groupBess Zones Absorption,cm -1 zonel Base Value Zone 2 Zone 3 Zone 4 Zone 5 Zone 6

Explanation / Answer

Functional group -OH present which gives a stretching frequency broad peak in the range of 3200-3600 cm-1 and a Bending frequency in the range of 1400-1500 cm-1. Apart from that, there are C-H bonds which correspond to 2800 & 2900 peak, C-H2 shows in 1400 cm-1. C-O peak Shows in 900-1200 cm-1

Ketone -C=O, Shows a strong sharp peak around 1700 cm-1. C-H stretching frequency shows in 2800-2900 cm-1. C-C showed 900-1500 medium peak.

Acid  -C=O, Shows a strong sharp peak around 1700 cm-1. Acid  -OH present which gives a stretching frequency broad peak in the range of 3200-3600 cm-1 C=C stretching frequency shows in 1550-1680 cm-1. C-O peak Shows in 900-1200 cm-1.

Functional group -OH present which gives a stretching frequency broad peak in the range of 3200-3600 cm-1. C=C stretching frequency shows in 1550-1680 cm-1. C-O peak Shows in 900-1200 cm-1. C-H stretching frequency shows in 2800-2900 cm-1.

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