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A blog for the NMR users at the University of Ottawa and all others interested in NMR spectroscopy.

Most recent posts

We have all been taught to tune our NMR probes to maximize the pulse power delivered to our sample (or minimize the reflected power back to the amplifier).  This prevents damage to the amplifiers and minimizes the duration of 90 pulses at fixed power levels. ...
In previous posts on this BLOG, examples of  1H/2H and 12C/13C isotope effects were discussed.  The figure below shows an example of a 10B/11B isotope effect observed in the 19F NMR spectrum of tetrabutyl ammonium tetrafluorobarate.The spectrum clearly...
The pleasingly symmetric and narrow Lorentzian resonances in a high resolution NMR spectrum are truly things of stunning beauty, appreciated by all NMR spectroscopists. Their majesty depends on the homogeneity of the NMR magnet around the sample. Inhomogeneous...

Most popular posts

We have all been taught to tune our NMR probes to maximize the pulse power delivered to our sample (or minimize the reflected power back to the amplifier).  This prevents damage to the amplifiers and minimizes the duration of 90 pulses at fixed power levels. ...
In previous posts on this BLOG, examples of  1H/2H and 12C/13C isotope effects were discussed.  The figure below shows an example of a 10B/11B isotope effect observed in the 19F NMR spectrum of tetrabutyl ammonium tetrafluorobarate.The spectrum clearly...
The pleasingly symmetric and narrow Lorentzian resonances in a high resolution NMR spectrum are truly things of stunning beauty, appreciated by all NMR spectroscopists. Their majesty depends on the homogeneity of the NMR magnet around the sample. Inhomogeneous...