Dielectric spectra of some common solvents in the microwave region. Dipolar aprotic solvents and amides

Dies ist die aktuelle Version dieses Eintrags.

Zusammenfassung

Precise complex permittivity spectra of the amides formamide, N-methylformamide (NMF), N,N-dimethylformamide, and N,N-dimethylacetamide and of the dipolar aprotic solvents acetonitrile, propylene carbonate, and DMSO were detd. at 0.95-89 GHz. The dielec. relaxation of all liqs. is nonexponential, ranging from a small sym. relaxation time distribution for acetonitrile to 3 discrete dispersion steps for NMF. [on SciFinder(R)]