1H NMR Study of Molecular Dynamics of 4-apyH Cation under High Hydrostatic Pressure |
| W. Medyckia, J. Świergielb, R. Jakubas c and K. Hołderna-Natkaniecb
aInstitute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland bInstitute of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland cFaculty of Chemistry, University of Wrocław, Joliot-Curie 14, 50-383 Wrocław, Poland |
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| Received: 24 04 2005; |
| Polycrystalline [4-NH2C5H4NH] SbCl4 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. |
| DOI: 10.12693/APhysPolA.108.161 PACS numbers:77.84.-s, 76.60.-k |