In a mass spectrometric study of nitrogenous aromatic compounds, a peak at m/z - 39 was found for 17 of the 20 compounds investigated, including the 4 compounds in the first row below, with a relative intensity ranging from 5 to 84% of the base peak. This peak was absent in the mass spectrum of each of the three compounds in the bottom row U. Org Chem 1964, 29, 2065-2066). NH, HN HN N. HN NH2 HN-N HN 17.76a Draw a structure for the cationic fragment with m/z = 39.

In a mass spectrometric study of nitrogenous aromatic compounds, a peak at m/z - 39 was found for 17 of the 20 compounds investigated, including the 4 compounds in the first row below, with a relative intensity ranging from 5 to 84% of the base peak. This peak was absent in the mass spectrum of each of the three compounds in the bottom row U. Org Chem 1964, 29, 2065-2066). NH, HN HN N. HN NH2 HN-N HN 17.76a Draw a structure for the cationic fragment with m/z = 39.

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 31AP: When measured on a spectrometer operating at 200 MHz, chloroform (CHCl3) shows a single sharp...

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