In the attached 1H NMR spectrum of ethyl-3-coumarincarboxylate, draw the structure on the spectrum and assign the various resonances (peaks) to the hydrogen nuclei responsible for them. The image is a Proton Nuclear Magnetic Resonance (1H NMR) spectrum of an organic compound. The graph represents the chemical shift in parts per million (PPM) on the x-axis and signal intensity on the y-axis. A molecular structure is depicted above the spectrum, indicating that the NMR data corresponds to the compound shown. This compound seems to have several aromatic rings and functional groups, which correlate to the peaks seen in the spectrum.Key features of the NMR spectrum:1. The peaks around 8 to 7 PPM likely correspond to aromatic hydrogen atoms, indicating the presence of aromatic rings in the compound. 2. The significant peak near 4 PPM is indicative of hydrogen atoms in a different chemical environment, potentially near an electronegative atom or functional group. 3. The peak around 1 to 0 PPM suggests the presence of aliphatic hydrogen atoms, typically found in alkyl chains.This NMR spectrum provides valuable information about the structural features and hydrogen environments within the compound.

Chemical shift of a proton depends on electronic environment. Greater is the electron deficiency…

Answered: In the attached 1H NMR spectrum of…

In the attached 1H NMR spectrum of ethyl-3-coumarincarboxylate, draw the structure on the spectrum and assign the various resonances (peaks) to the hydrogen nuclei responsible for them.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL2: Mass Spectrometry

Section: Chapter Questions

Problem 9CTQ

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Question

100%

In the attached 1H NMR spectrum of ethyl-3-coumarincarboxylate, draw the structure on the spectrum and assign the various resonances (peaks) to the hydrogen nuclei responsible for them.

The image is a Proton Nuclear Magnetic Resonance (1H NMR) spectrum of an organic compound. The graph represents the chemical shift in parts per million (PPM) on the x-axis and signal intensity on the y-axis.

A molecular structure is depicted above the spectrum, indicating that the NMR data corresponds to the compound shown. This compound seems to have several aromatic rings and functional groups, which correlate to the peaks seen in the spectrum.

Key features of the NMR spectrum:

1. The peaks around 8 to 7 PPM likely correspond to aromatic hydrogen atoms, indicating the presence of aromatic rings in the compound.

2. The significant peak near 4 PPM is indicative of hydrogen atoms in a different chemical environment, potentially near an electronegative atom or functional group.

3. The peak around 1 to 0 PPM suggests the presence of aliphatic hydrogen atoms, typically found in alkyl chains.

This NMR spectrum provides valuable information about the structural features and hydrogen environments within the compound.

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