Article,

Crystal structure analysis of a star-shaped triazine compound: a combination of single-crystal three-dimensional electron diffraction and powder X-ray diffraction

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Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 74 (3): 287--294 (Jun 1, 2018)
DOI: 10.1107/s2052520618006686

Abstract

The solid-state structure of star-shaped 2,4,6-tris­(E)-2-4-(di­methyl­amino)-phenylethenyl-1,3,5-triazine is determined from a powder sample by exploiting the respective strengths of single-crystal three-dimensional electron diffraction and powder X-ray diffraction data. The unit-cell parameters were determined from single crystal electron diffraction data. Using this information, the powder X-ray diffraction data were indexed, and the crystal structure was determined from the powder diffraction profile. The compound crystallizes in a noncentrosymmetric space group, P212121. The molecular conformation in the crystal structure was used to calculate the molecular dipole moment of 3.22 Debye, which enables the material to show nonlinear optical effects.

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