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- W1973947599 abstract "Fifteen aliphatic and alicyclic secondary amines dispersed in polyethylene matrices exhibited dielectric relaxations at 4.2 K which are attributed to inversion of the nitrogen coordination pyramids by tunnelling of the amino hydrogens. Two primary phosphines exhibited broad dispersion curves which are attributed to relaxation by PH2 group rotations and twelve primary amines exhibited relaxations with characteristically skew dispersion curves. This characteristic is attributed to interference between tunnel couplings corresponding to internal rotation and to inversion. Comparison is made with published microwave and infrared spectroscopic data of these and similar molecular species and conclusions are drawn, where possible, about the barriers to inversion and to internal rotation. All the dielectric dispersions are attributed to Debye relaxation with a spread of time constants, and this is explicitly justified in one case." @default.
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- W1973947599 date "1982-02-01" @default.
- W1973947599 modified "2023-09-25" @default.
- W1973947599 title "Dielectric relaxation of Amines by inversion and internal rotation" @default.
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- W1973947599 doi "https://doi.org/10.1016/0301-0104(82)85051-9" @default.
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