Propose possible structures consistent with each set of data. Assume each compound has an sp3 hybridized C – H absorption in its IR spectrum, and that other major IR absorptions above 1500 cm are listed. a. a compound having a molecular ion at 72 and an absorption in its IR spectrum at 1725 cm−1 b. a compound having a molecular ion at 55 and an absorption in its IR spectrum at ~2250 cm−1 c. a compound having a molecular ion of 74 and an absorption in its IR spectrum at 3600–3200 cm−1

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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.