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Title: Liquid organic frameworks : a liquid crystalline 8-connected network with body-centered cubic symmetry
Author(s): Chen, Changlong
Poppe, Marco
Poppe, Silvio
Tschierske, Carsten
Liu, Feng
Issue Date: 2020
Type: Article
Language: English
Abstract: Liquid state self-assembly is important for the understanding of the complex structures developed in abiogenesis and biogenesis as well as for numerous potential technological applications. Herein we report the first body-centered cubic liquid crystalline phase with 8-connected network topology and open octahedral network structure. It is formed by dynamic soft self-assembly of X-shaped polyphiles with oligo(para-phenylene-ethynylene) cores. The π-conjugated rods with perfluorinated inner benzene rings form networks conjoined by eight-way junctions, which are formed by nano-segregated spheres involving hydrogen-bonded polar end groups, while the branched aliphatic chains at opposite sides of the cores fill the continuum. This novel cubic phase is based on the I-WP minimal surface separating the frameworks of polyaromatic cores from the most disordered chain segments. It can also be considered as a dense sphere packing. Such liquid organic frameworks, representing hybrids of sphere packings and networks could be of interest for organic photonics and other technologies.
Open Access: Open access publication
License: (CC BY-NC 4.0) Creative Commons Attribution NonCommercial 4.0(CC BY-NC 4.0) Creative Commons Attribution NonCommercial 4.0
Sponsor/Funder: Publikationsfonds MLU
Journal Title: Angewandte Chemie
Publisher: Wiley-VCH
Publisher Place: Weinheim
Volume: 59
Issue: 47
Original Publication: 10.1002/anie.202008784
Page Start: 20820
Page End: 20825
Appears in Collections:Open Access Publikationen der MLU

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