| Abstrakt: |
The crystal structures of β-1,2,3-tris(pentadecanoyl)glyceroI (β-C15C15C15), β-1,2,3-tris(heptadecanoy1)glycerol (β-C17C17C17) and β-1,2,3-tris(nonadecanoyl)glycerol (β-C19C19C19) have been determined from high-resolution X- ray powder diffraction data. Grid search and Rietveld refinement have been used to determine and refine the structures, respectively. As in β-1,2,3-tris(tridecanoyl)glycerol (β-C13C13C13) and the even-numbered mono-acid triacylglycerols, all three odd-numbered monoacid triacylglycerols crystallize in space group P¯1; with Z = 2 in an asymmetric tuning-fork conformation and have a lateral acyl chain packing resulting in a layered structure. [ABSTRACT FROM AUTHOR] |
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