When the molecule shown below is treated with AICI3, one organic product A is cleanly isolated after an acidic aqueous workup. The proton spectrum shown was obtained. The signal at 8.5 ppm disappears when a D₂O shake is conducted. 1H 2H₁ 12H Provide the structure of A in the box ppm 3H

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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.