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Figure 1
Schematic representation of a paracrystalline lattice composed of layer-ordered (i.e. lamellar-ordered) molecules. a is the primitive lattice vector, which is defined by its components, a1, a2 and a3, as shown in this figure; n is the vector of the layer orientation axis, which is parallel to a3; d3 is the long period between layers; dr is the lateral distance within a layer; β is the angle between a1 and a3; and Δa is the lattice positional fluctuation parameter. The subscript r denotes the direction transverse to a3. As an example, the molecule shown here in an extended chain in the layer-stacked structure assembly is S-docosanylcysteine, which was investigated in this study.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 40| Part s1| January 2007| Pages s669-s674
doi:10.1107/S0021889806056056
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