1H NMR study of molecular dynamics of 4-apyH cation under! high hydrostatic pressure
Medycki W.1, Świergiel J.1, Jakubas R.2, Hołderna-Natkaniec K.3
- 1Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland
- 2Institute of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
- 3Faculty of Chemistry, University of Wroc law, Joliot-Curie 14, 50-383 Wroc law, Poland
Acta Physica Polonica A, 108 (1), pp.161-164, 2005
DOI::
Abstract:
Polycrystalline [4-NH2C5H4NH] SbCl 4 and [4-NH2C5H4NH] SbCl6 have been investigated by proton NMR methods between 120 K and 370 K under hydrostatic pressure of 0.1 and 520 MPa. Reduction in the dipolar second moment is interpreted in terms of cation reorientation. Activation energies characterizing the motion increase with increasing pressure.
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