Given the molecular formula C7H7NO2 assign as many of the absorption bands in the spectrum below and propose a structure. (7 points)* Note you are graded on your ability to justify your answer, only 1 point is given for finding the correct structure. 1.0 0.8 80.6 0.4 0.2 0.0- 4000 3500 3000 2500 2000 1500 1000 500 Transmittance (T) 3088 090€ 2994 2954- 2932 2864 1523 009 1179- 1112- 861 618 741

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NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.