Crystal structure of 11-{[(4′-heptoxy-4-biphenylyl) carbonyl] oxy}-1-undecyne

Jianxin Geng, Fengxia Geng, Xiaoniu Yang, Jiku Wang, Gao Li*, Enle Zhou, Benzhong Tang

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

6 Citations (Scopus)

Abstract

The crystal structure of 11-{[(4′-heptoxy-4-biphenylyl) carbonyl] oxy}-1-undecyne (A9EO7), an acetylene with a biphenyl mesogenic moiety, was studied by combination of electron diffraction (ED), wide-angle X-ray diffraction (WAXD), and molecular simulation of ED pattern and molecular packing. A9E07 was found to adopt an orthorhombic P21212 space group with cell parameters of a = 5.78 Å, b=7.46 Å, and c = 63.26 Å, for which molecular packing calculations were conducted to elucidate the molecular conformation. Its crystal morphology was observed using a transmission electron microscope (TEM) and an atom force microscope (AFM), A9E07 crystal grew to form step like morphology. Crystallization behavior of A9E07 in magnetic field was examined. Induced by magnetic field A9EO7 could crystallize in such a way that its molecular long axis was parallel to the substrate.

Original languageEnglish
Pages (from-to)115-130
Number of pages16
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume383
DOIs
Publication statusPublished - 2002

Keywords

  • Acetylene
  • Morphology
  • Structure
  • TEM

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