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CHEM 331L Physical Chemistry Laboratory Revision Determination of Equilibrium Constants using NMR spectroscopy In this laboratory exercise we will measure the Equilibrium constant for the cis-trans isomerism about a peptide bond involving the amino acid L-Proline. This will be accomplished by determining the relative concentrations of each isomer using key proton signals in a Nuclear Magnetic Resonance (NMR) spectrum of a solution of an N-Acetyl derivative of the amino acid, which will serve as a model for peptide bonds involving Proline. In each case, the relative concentration of the Equilibrium species can be determined from the NMR signal strength. The relative concentrations can then be leveraged to determine the desired Equilibrium constant .
CHEM 331L Physical Chemistry Laboratory Revision 2.1 Determination of Equilibrium Constants using NMR Spectroscopy In this laboratory exercise we will measure the equilibrium constant for the cis-trans isomerism about a peptide bond involving the amino acid L-Proline.This will be accomplished by
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Basic concepts for two-dimensional NMR, Frequency, Infrared Spectroscopy and Mass Spectrometry, Principles of NMR, Nuclear magnetic resonance, Measuring 13C NMR Spectra, Lecture 3: Coupling Constants Chem 117, 19.3 SPECTROSCOPY OF ALDEHYDES AND KETONES, Chapter 13: Nuclear Magnetic Resonance (NMR), Chapter 13: Nuclear Magnetic Resonance (NMR) Spectroscopy