Poppe Marco, Chen Changlong, Liu Feng, Poppe Silvio, Tschierske Carsten
Department of Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Strasse 2, 06120, Halle, Germany.
State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P.R. China.
Chemistry. 2017 May 29;23(30):7196-7200. doi: 10.1002/chem.201700905. Epub 2017 Apr 27.
Bicontinuous cubic phases are of significant importance for numerous applications, for example, for the crystallization of membrane proteins, as photonic materials and as templates for porous silica. A new variant of bicontinuous cubic liquid crystalline phase with Ia3‾ d lattice is reported herein for X-shaped bolapolyphiles. It was shown that in this class of compounds, cubic-phase induction can be achieved by proper aromatic core fluorination; in addition, the first cubic phases having π-conjugated oligo(phenylene ethynylene) rods on the gyroid minimal surface were obtained. These new structures composed of 3D folded layers of parallel arranged π-conjugated rods should allow charge transport in all three dimensions, which is of interest for organic semiconductor applications.
双连续立方相在众多应用中具有重要意义，例如用于膜蛋白结晶、作为光子材料以及作为多孔二氧化硅的模板。本文报道了一种具有Ia3‾ d晶格的双连续立方液晶相的新变体，用于X形双亲分子。结果表明，在这类化合物中，通过适当的芳环核心氟化可以实现立方相诱导；此外，还获得了在螺旋状最小曲面上具有π共轭低聚（亚苯基乙炔）棒的首个立方相。这些由平行排列的π共轭棒的三维折叠层组成的新结构应能在所有三个维度上实现电荷传输，这在有机半导体应用中具有重要意义。
