2,6-Dibromogallates as a new building block for controlling π-stacking, network formation and mirror symmetry breaking

Achiral multi-chain (polycatenar) compounds based on the 2,7-diphenyl substituted [1]benzothieno[3,2- b ]benzothiophene (BTBT) unit and a 2,6-dibromo-3,4,5-trialkoxybenzoate end group lead to materials forming bicontinuous cubic liquid crystalline phases with helical network structures over wide tem...

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Published inChemical communications (Cambridge, England) Vol. 57; no. 53; pp. 6491 - 6494
Main Authors Kwon, Ohjin, Cai, Xiaoqian, Saeed, Azhar, Liu, Feng, Poppe, Silvio, Tschierske, Carsten
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 01.07.2021
Royal Society of Chemistry
Subjects
Benzothiophene
Broken symmetry
Chemistry
Chemistry, Multidisciplinary
Liquid crystals
Network formation
Physical Sciences
Science & Technology
PHASES
CUBIC LIQUID-CRYSTALLINE
DESIGN
COLUMNAR
COMPLEXITY
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Summary:Achiral multi-chain (polycatenar) compounds based on the 2,7-diphenyl substituted [1]benzothieno[3,2- b ]benzothiophene (BTBT) unit and a 2,6-dibromo-3,4,5-trialkoxybenzoate end group lead to materials forming bicontinuous cubic liquid crystalline phases with helical network structures over wide temperature ranges. Bromination of the gallate unit changes the π-stacking mode, widens LC ranges and favors mirror symmetry broken triple networks over double networks.
Bibliography:10.1039/d1cc01922h
Electronic supplementary information (ESI) available: Methods, syntheses, analytical data, additional XRD and structural data. See DOI
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc01922h