Acta Crystallographica Section B

Structural Science

Volume 64, Part 6 (December 2008)

research papers

Acta Cryst. (2008). B64, 771-779 [ doi:10.1107/S0108768108031601 ]

Structures of mono-unsaturated triacylglycerols. V. The '₁-2, '-3 and ₂-3 polymorphs of 1,3-dilauroyl-2-oleoylglycerol (LaOLa) from synchrotron and laboratory powder diffraction data

J. B. van Mechelen, K. Goubitz, M. Pop, R. Peschar and H. Schenk

Abstract: The crystal structures of the $\beta ^{\prime}_1$ -2, the [beta] '-3 and the [beta] ₂-3 polymorphs of 1,3-dilauroyl-2-oleoylglycerol have been solved from powder diffraction data. The packing of the [beta] ₂-3 polymorph is similar to that of other cis mono-unsaturated triacylglycerols. Both the [beta] ' polymorphs are crystallized in a novel type of packing in which one of the saturated lauroyl chains is packed side-by-side with part of the unsaturated oleoyl chain.

Keywords: triacylglycerols; powder diffraction; polymorph.


	Rietveld powder data file (CIF format) (228.2 kbytes) [ doi:10.1107/S0108768108031601/dr5021Isup2.rtv ] Contains datablock I

	Rietveld powder data file (CIF format) (180.5 kbytes) [ doi:10.1107/S0108768108031601/dr5021IIsup4.rtv ] Contains datablock II

	Rietveld powder data file (CIF format) (218.0 kbytes) [ doi:10.1107/S0108768108031601/dr5021IIIsup6.rtv ] Contains datablock III

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