Premium
Formation of a Double Diamond Cubic Phase by Thermotropic Liquid Crystalline Self‐Assembly of Bundled Bolaamphiphiles
Author(s) -
Zeng Xiangbing,
Prehm Marko,
Ungar Goran,
Tschierske Carsten,
Liu Feng
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201602734
Subject(s) - thermotropic crystal , liquid crystal , materials science , crystallography , phase (matter) , diamond , tetrahedron , symmetry (geometry) , liquid crystalline , chemistry , geometry , composite material , organic chemistry , optoelectronics , mathematics
Abstract A quaternary amphiphile with swallow‐tail side groups displays a new bicontinuous thermotropic cubic phase with symmetry Pn 3 ‾ m and formed by two interpenetrating networks where cylindrical segments are linked by H bonds at tetrahedral junctions. Each network segment contains two bundles, each containing 12 rod‐like mesogens, lying along the segment axis. This assembly leads to the first thermotropic structure of the “double diamond” type. A quantitative geometric model is proposed to explain the occurrence of this rare phase.