Answer Happy

35 2. An unknown compound has the formula CzHsl, and gives the IR and proton NMR spectra shown below. a. From the formula, the unknown has_0_units of unsaturation b. From the IR spectrum (and considering the formula) the following functional groups are probably present in the unknown around 507 Median peók round Web For -CHe grave c. From the proton NMR spectrum, the number of unique protons present is 2 tupe of unique prolons are present d List the two sets of peaks in the NMR spectrum by chemical shift and intensity CT Pral group Chemical Shift I oppm Intensity (integral) (triplet , 3A) 30ppm (quartet 2H) e. Proposed structure of the unknown CH3 - CH₂ - I 's Oppm Cethylredete) 1. Looking at the structure you drew in part (e) predict which functional groups you expect to see in the IR spectrum g. Looking at the structure you drew in part (e), fill in the chart in part (d) the expected chemical shifts and expected intensities in the proton NMR spectrum h. "Recheck", does the data you generated in parts (1) and (g) agree with the observed data recorded in parts (b) and (d)? If not, you need to revise your structure!