An unknown compound has the following spectra. For full credit, answer each ques

Question

An unknown compound has the following spectra. For full credit, answer each question. From the mass spectrum below, what is the molecular weight of the compound? Does it have a Br or Cl in it? Identify at least one functional group from the IR spectrum below. Mark the peaks that lead you to your conclusion. From the^13C NMR spectrum below, how many different kinds of carbon are there in the molecule? What kind of carbon is responsible for the peak at 177.76 ppm? What feature of the molecule is responsible for the peak at 40.40 ppm?

Explanation / Answer

Spectral analysis

a. From mass molar mass = 216

e. types of carbon by 13C spectra = 6

g. The peak at 40.40 ppm is due to carbon next to a C=O group.

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