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The dynamics of liquid formamide, N-methylformamide, N,N-dimethylformamide, and N,N-dimethylacetamide. A dielectric relaxation study

Barthel, Josef ; Buchner, Richard ; Wurm, B.



Abstract

Dielec. relaxation was measured in liq. formamide (FA), N-methylformamide (NMF), DMF, and N,N-dimethylacetamide (DMA) 238.15-338.15 K in the frequency range from 0.2 to 89 GHz. Whereas the FA spectra can be formally fitted with a Davidson-Cole relaxation-time distribution, two relaxation process can be resolved for the other liqs. For DMF and DMA, the long relaxation time, τ1(T), follows the ...

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