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Crystal structure of 1,4‴-Dimethoxy-4,1′:4′,1″:4″,1‴-quaterphenylene

Authors
Journal
Materials Letters
0167-577X
Publisher
Elsevier
Publication Date
Volume
63
Issue
28
Identifiers
DOI: 10.1016/j.matlet.2009.07.054
Keywords
  • Mop4
  • Crystal Structure
  • Organic Semiconductor
  • Band Gap
  • Absorption
  • Fluorescence

Abstract

Abstract 1,4‴-Dimethoxy-4,1′:4′,1″:4″,1‴-quaterphenylene crystallizes in space group Pbca with a = 7.4989(5) Å, b = 6.1544(3) Å, c = 40.359(2) Å, V = 1862.6(2) Å 3, and Z = 4. In the crystal structure the molecules are arranged in layers, which are stacked in the direction of the crystallographic c-axis. The torsion between the molecules in a layer amounts to 69.06° resulting in a herringbone structure. The phenyl rings of the molecule are approximately planar with a torsion angle of 4.64° between the outer and the center rings. UV/Vis transmission measurements of the colorless crystal reveal a band gap of ~ 3.2 eV.

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