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In this study, a new assembly strategy for lyotropic chromonic liquid crystals (LCLCs) is proposed using iπ–iπ interactions, mainly comprising electrostatic and dispersion forces, between charged π-electronic systems to form stacking structures supported by the hydration of triethylene glycol (TEG) units. Meso-TEG-aryl-substituted porphyrin AuIII complex, an amphiphilic π-electronic cation, showed diverse states and assembly modes in ion pairs depending on the coexisting counteranions. The PCCp– ion pair formed a hexagonal columnar (Colh) LC phase based on a charge-by-charge assembly, suggesting the formation of an ordered arrangement of charged π-electronic systems through iπ–iπ interactions, with reduced interactions between the TEG chains. Furthermore, in the presence of water, LCLC behaviors in the Colh and nematic columnar phases according to the amount of water were observed for the PCCp– ion pair via iπ–iπ interactions. Magnetic-field-induced orientation of the charge-by-charge columnar structures upon dehydration was observed. Furthermore, single-stranded charge-by-charge columnar structures, as components of the LCLCs, were observed using transmission electron microscopy (TEM).

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: amphiphiles, charged pi-electronic systems, ion-pairing assemblies, liquid crystals

刊行年月日: 2025-01-15

出版者: Wiley

掲載誌:

• Angewandte Chemie International Edition (ISSN: 14337851) vol. 64 issue. 3

研究助成金:

• Japan Society for the Promotion of Science JP18H01968, JP22H02067, JP23K23335, JP23K17951, JP20H05863
• Japan Society for the Promotion of Science JP23H04874
• Japan Society for the Promotion of Science JP20J22745

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1002/anie.202415135

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更新時刻: 2025-02-23 22:51:25 +0900

MDRでの公開時刻: 2025-02-23 22:51:25 +0900