Question from NMRWiki Q&A forum Strange peak distortions but that of water

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[Question from NMRWiki Q&A forum] Strange peak distortions but that of water

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07-05-2013, 08:03 AM

nmrlearner

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Strange peak distortions but that of water

Strange peak distortions but that of water

Hy everyone, I'm having a strange problem when reading the NMR spectrum of a small aromatic molecule in deuterium oxide: all the resonances of the solute molecule are very distorted, as if caused by poor shimming. For example, they show multiple maxima, and are not symmetric. But the problem is that the HDO resonance has a perfectly symmetric Lorentzian lineshape. Could it be a shimming problem, even if the water resonance is perfect?

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