Assign the peaks in the ¹H NMR spectrum of cinnamic acid (3), Spec 2. In particular, deduce the value of the coupling constant (J) between the two alkene protons and deduce the stereochemistry of cinnamic acid. SPEC 3 d 600 Hz Shift

Assign the peaks in the ¹H NMR spectrum of cinnamic acid (3), Spec 2. In particular, deduce the value of the coupling constant (J) between the two alkene protons and deduce the stereochemistry of cinnamic acid. SPEC 3 d 600 Hz Shift

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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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

Assign the peaks in the ¹H NMR spectrum of cinnamic acid (3), Spec 2. In particular, deduce the value of the
coupling constant (J) between the two alkene protons and deduce the stereochemistry of cinnamic acid.
80
ER
15
12
R
28
S
SPEC
OCH LON
3
d
600 Hz. Shift

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