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Topic: paramagnetic substances influence as shift reagent in NMR  (Read 2485 times)

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paramagnetic substances influence as shift reagent in NMR
« on: August 07, 2010, 04:01:27 PM »
hi all
when someone use Ni or Co as shift reagent the peaks in NMR are broaden but when they are replaced with lantanids ions like Eu the peaks will not be broaden any more, what is the difference between these two paramagnetic substances?

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