An unknown compound has the molecular formula C9H11Br. Its proton NMR spectrum shows the following absorptions:singlet, d7.1, integral 44 mmsinglet, d2.3, integral 130 mmsinglet, d2.2, integral 67 mmPropose a structure for this compound

An unknown compound has the molecular formula C9H11Br. Its proton NMR spectrum shows the following absorptions:singlet, d7.1, integral 44 mmsinglet, d2.3, integral 130 mmsinglet, d2.2, integral 67 mmPropose a structure for this compound

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter13: Mass Spectrometry

Section: Chapter Questions

Problem 3Q

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Concept explainers

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.

Question

An unknown compound has the molecular formula C9H11Br. Its proton NMR spectrum shows the following absorptions:
singlet, d7.1, integral 44 mm
singlet, d2.3, integral 130 mm
singlet, d2.2, integral 67 mm
Propose a structure for this compound

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