Dynamics of plastic and liquid cyclohexane in bulk and in porous glasses studied by NMR methods
β Scribed by S. Stapf; R. Kimmich; T. Zavada
- Publisher
- Springer Vienna
- Year
- 1997
- Tongue
- English
- Weight
- 634 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0937-9347
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π SIMILAR VOLUMES
Neutron diffraction measurements have been made for cyclohexane, C,D,, as a function of temperature for bulk samples and also in porous silica with characteristic pore dimensions of -9OA. The results show that the simplifying assumption of cyclohexane as an unhindered rotator are not valid and that
Polar and non-polar liquids in porous glasses have been studied by proton and deuteron field-cycling NMR relaxometry. The mean pore diameters were 4 nm, 30 nm and 208 nm. The frequency dependence of the spin-lattice relaxation time T1 is strongly influenced by the polarity of the adsorbate. Non-pola