Jump to main content
Jump to site search

Issue 35, 2018
Previous Article Next Article

Anion-induced ionic liquid crystals of diphenylviologens

Author affiliations

Abstract

Two series of ionic liquid crystals derived from diphenylviologens, 1 and 2, were prepared and their photophysical and electrochemical properties were also investigated. The crystallographic data of two single crystals, 1-RSO3 (n = 10) and 2-BF4 (n = 12), showed that a mono- or bilayer-lamellar structure was induced by intermolecular H-bonds. All mesophases were identified as smectic A phases by POM textures and powder XRD data. A linear correlation plot (R2 = 0.8885) of the d-spacings vs. the calculated effective radius (Reff) in compounds 2-X was obtained. The aggregation-induced emission (AIE) ranging from ca. 463 to 529 nm observed in compounds 2-X (e.g., X = BF4, PF6, RSO3, OTf and NTf2) was also anion dependent. Also, compounds 2-X exhibited thermal switching, with an On/Off-emission mode between the Cr and SmA phases. In its cyclic voltammogram, compound 1-RSO3 (n = 12) exhibited two distinct reversible redox couples; in contrast, compound 2-RSO3 (n = 12) formed spike-like voltammetric peak potentials without redox couples.

Graphical abstract: Anion-induced ionic liquid crystals of diphenylviologens

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Jun 2018, accepted on 03 Aug 2018 and first published on 08 Aug 2018


Article type: Paper
DOI: 10.1039/C8TC03090A
Citation: J. Mater. Chem. C, 2018,6, 9430-9444
  •   Request permissions

    Anion-induced ionic liquid crystals of diphenylviologens

    R. Wang, G. Lee and C. K. Lai, J. Mater. Chem. C, 2018, 6, 9430
    DOI: 10.1039/C8TC03090A

Search articles by author

Spotlight

Advertisements