Shown below is the 1D 1H-NMR spectrum of 2-hexenal annotated with resonance integrals (below) and chemical shifts (above). Which resonances are most likely attributable to the vinyl hydrogens of the trans-isomer this compound (circled in red)? Circle these resonances on the 1D NMR. Explain your assignment. H H H H) H H. H H HH (H) нн PPM 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 9.513 1.000 7.271 7.064 0.150 6.859 1. 103 6.129 0.921 5.835 a 149 2.327 2.512 2.218 0.529 1.548 3.059 0.973 S270

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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.