NMR at high temperature

Signals obtained were sharp and Lorentzian and corresponded to the average signature of the different species in the melt. All the NMR spectra were fitted with the DMfit software. 

Because of the small space available between the sample container (BN crucible) and the radiofrequency and gradients coils, thermal shielding was insured by several ceramic barriers, and additional cooling was performed with nitrogen stream at room temperature. 

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