2. (Chapter 13 - Q58b) The compound whose 'H NMR spectrum is shown has the molecular formula C7H,Br. Follow the following questions to predict the unknown structure. Chem. Rel. shift area 2.31 1.50 7.01 1.00 7.35 1.00 TMS 10 9. 8 7 6. 4 3 1 0 ppm Chemical shift (8) © 2016 Cengage Learning 2(a) Degree of the unsaturation of this compound is= 2(b) The two distinct peaks in the aromatic region of the 'H NMR indicate that compound is .-disubstituted = 2(c) The splitting pattern of the peak at 2.31 6 is = 2(d) The group that corresponds to the splitting pattern in 1(c) is = 2(e) This compound has the plane of symmetry Yes or No = 2(f) The name of the unknown compound = Intensity

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Analyzing and Predicting Spectroscopic Data

The interaction of electromagnetic radiation with the structure of molecules in the sample and their study is referred spectroscopy. Several spectroscopic methods are used to acquire sample information, and these methods are proved to be accurate, fast, and non-destructive. The information obtained about the content and composition of molecules from these spectroscopic methods is called spectroscopic data.