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Showing posts with label 13C-NMR. Show all posts
Showing posts with label 13C-NMR. Show all posts

Sunday, 7 August 2016

Basic 1H- and 13C-NMR Spectroscopy

/////////////////////////Basic 1H- and 13C-NMR Spectroscopy
Nuclear Magnetic Resonance (NMR) spectroscopy is a powerful and theoretically complex analytical tool.Basic 1H- and 13C-NMR Spectroscopyprovides an introduction to the principles and applications of NMR spectroscopy. Whilst looking at the problems students encounter when using NMR spectroscopy, the author avoids the complicated mathematics that are applied within the field. Providing a rational description of the NMR phenomenon, this book is easy to read and is suitable for the undergraduate and graduate student in chemistry.

* Describes the fundamental principles of the pulse NMR experiment and 2D NMR spectra 
* Easy to read and written with the undergraduate and graduate chemistry student in mind
* Provides a rational description of NMR spectroscopy without complicated mathematics

Saturday, 22 November 2014

NMR PROBLEM 3.....1H-NMR and 13C-NMR for a heterocyclic aldehyde



1H-NMR and 13C-NMR for a heterocyclic aldehyde


1H-NMR and 13C-NMR for a heterocyclic aldehyde. Notice the correlation between the chemical shifts in the two spectra. The proton spectrum has a sweep width of 10 ppm, and the carbon spectrum has a width of 200 ppm


The peak areas of the 13C-NMR are not proportional to the number of carbons giving rise to the peaks. Carbons with no protons attached to them usually give rise to small peaks. In the proton spin decoupled 13C-NMR each carbon signal appears as a unsplit singlet. The heterocyclic aldehyde has 5 carbons all in different environments so the spectrum will show 5 peaks.