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Each problem contains the formula of the compound, the IR spectrum (% transmission vs. wavenumber, cm-1), and the 1H NMR spectrum (axis = chemical shift,

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Each problem contains the formula of the compound, the IR spectrum (% transmission vs. wavenumber, cm-1), and the 1H NMR spectrum (axis = chemical shift, ppm). Some spectra show a peak hovering above the baseline. This is an expanded view of one of the peaks to allow you to see splitting patterns more clearly: 1H This peak is a magnified version of this peak , TTTTTTTT 3.0 2.8 2.6 2.4 For each problem, you must - Calculate the degree of unsaturation - Assign IR absorption bands above 1500 cm-1 - Draw the structure of the compound - Label the protons in your structure with letters and assign them to peaks in the NMR spectrum as we did in the examples in class (lab) 3A: CH1402 100 80 60 870 1085 1275 BSITE 464 1379 40 1062 9262 9611 20 1736 4000 3500 3000 2500 2000 1500 1000 6H Le 3H 1.25 1.20 1.15 1.10 PPM.05 1H 2H 2H alle TT T T T 5. Proton NMR 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 PPM

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