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A self-assembled bicontinuous cubic phase with single diamond network

DOI: 10.1002/anie.201902677 DOI Help

Authors: Carsten Tschierske (Martin-Luther-University Halle-Wittenberg) , Xiangbing Zeng (University of Sheffield) , Silvio Poppe (Martin-Luther-University Halle-Wittenberg) , Anne Lehmann (Martin-Luther-University Halle-Wittenberg) , Marko Prehm (Martin-Luther-University Halle-Wittenberg) , Changlong Chen (Xi’an Jiaotong University) , Feng Liu (Xi’an Jiaotong University) , Huanjun Lu (University of Sheffield) , Goran Ungar (University of Sheffield; Xi’an Jiaotong University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Angewandte Chemie International Edition

State: Published (Approved)
Published: March 2019

Abstract: We report the first single diamond cubic phase in a liquid crystal. This skeletal structure with Fd3¯m space group is formed by self‐assembly of bolaamphiphiles with swallow‐tailed lateral chains. It consists of bundles of π‐conjugated p‐terphenyl rods fused into an infinite network by hydrogen‐bonded spheres at tetrahedral four‐way junctions. We also present a quantitative model relating molecular architecture with space‐filling requirements of six possible bicontinuous cubic phases, i.e. single‐ and double‐network versions gyroid, diamond and “plumbers nightmare”.

Journal Keywords: Liquid crystals; Single network bicontinuous cubic phases; Bolaamphiphiles; Self-assembly; Single diamond network; X-ray diffraction

Subject Areas: Materials, Chemistry


Instruments: I22-Small angle scattering & Diffraction

Other Facilities: Shanghai Synchrotron Radiation Facility