Details

Autor(en) / Beteiligte

• Yardley, Rebecca E
• Paquette, Joseph A
• Taing, Hi
• Gaebler, Heather M
• Eichhorn, S. Holger
• Hamilton, Ian P
• Maly, Kenneth E

Titel

Stabilization of Columnar Liquid Crystal Phases via Arene-Perfluoroarene Interactions

Ist Teil von

• Organic letters, 2019-12, Vol.21 (24), p.10102-10105

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We report the synthesis of novel polycatenar dibenzo­pentacene­quinones 1 and 2 that are designed to form columnar liquid crystalline phases. The mesomorphic properties of these compounds were investigated by polarized optical microscopy, differential scanning calorimetry, and powder X-ray diffraction. While compound 1 exhibits two distinct columnar mesophases between 148 and 177 °C, fluorinated 2 exhibits a columnar mesophase from 121 to 336 °C. This dramatic stabilization of the columnar mesophase of 2 can be attributed to improved π-stacking as a result of arene–perfluoroarene interactions.