The 'H NMR spectrum of 1-nitronaphthalene recorded at 298K in CDC!3 solution is given below. The 2-dimensional 'H NOESY spectrum is given on the facing page. Given that the nitro group at position 1 will always extensively deshield the proton at position 8 such that it will appear as the resonance at lowest field in the spectrum, use the NOESY spectrum to assign all of the other protons in the spectrum. Hg NO2 1-nitronaphthalene H7. H3 H5 H4 'H NMR Spectrum (400 MHz, CDCI, sołution) solvent residual 8.8 8.6 8.4 8.2 8.0 7.8 7.6 7.4 7.2 ppm Proton Chemical Shift (8) in ppm H2 H3 H4 H5 H6 H7 H8 8.56

The 'H NMR spectrum of 1-nitronaphthalene recorded at 298K in CDC!3 solution is given below. The 2-dimensional 'H NOESY spectrum is given on the facing page. Given that the nitro group at position 1 will always extensively deshield the proton at position 8 such that it will appear as the resonance at lowest field in the spectrum, use the NOESY spectrum to assign all of the other protons in the spectrum. Hg NO2 1-nitronaphthalene H7. H3 H5 H4 'H NMR Spectrum (400 MHz, CDCI, sołution) solvent residual 8.8 8.6 8.4 8.2 8.0 7.8 7.6 7.4 7.2 ppm Proton Chemical Shift (8) in ppm H2 H3 H4 H5 H6 H7 H8 8.56

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Section13.SE: Something Extra

Problem 56GP: Long-range coupling between protons more than two carbon atoms apart is sometimes observed when ...

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