Author:
Xu Shu,Korb J.-P.,Jonas J.
Abstract
ABSTRACTAn overview of several NMR studies of liquids in confined geometries is
presented. First, the NMR relaxation rates, 1/T1,
1/T1ρ , and 1/T2 were measured for several
molecular liquids confined to porous silica glasses with pore radii in the
range from 12 Å to 100 Å as a function of temperature, pore size, and
frequency. The experimental relaxation data were interpreted in terms of
bulk, surface, and topological contributions using the following
expression:where 1/Tib and 1/Tis are the bulk and the surface
layer relaxation rates, ε is the thickness of the surface layer, R is the
pore radius, and Ai(ω) represents the pure topological
effect.Second, the pressure effects on the dynamics of the confined liquid of
acetonitrile-d3 were also investigated. Third, the natural
abundance of 13C spin lattice relaxation rates for CS2
confined to porous silica glasses provided information about confinement
effects on the angular momentum behavior of this simple liquid.
Publisher
Springer Science and Business Media LLC
Cited by
6 articles.
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