Interesting phase behaviors and ion-conducting properties of dicationic N-alkylimidazolium tetrafluoroborate saltsElectronic supplementary information (ESI) available. See DOI: 10.1039/c8ra09208g
A series of dicationic imidazolium bis(tetrafluoroborate) salts were newly synthesized, and their phase transition behaviors were correlated with thermal, scattering, optical and conductivity results. The bis-imidazolium salts having side-chain lengths of C 6 -C 10 showed plastic crystal mesophases,...
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Main Authors | , , , , , , , , |
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Format | Journal Article |
Language | English |
Published |
29.01.2019
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Online Access | Get full text |
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Summary: | A series of dicationic imidazolium bis(tetrafluoroborate) salts were newly synthesized, and their phase transition behaviors were correlated with thermal, scattering, optical and conductivity results. The bis-imidazolium salts having side-chain lengths of C
6
-C
10
showed plastic crystal mesophases, while a liquid crystal mesophase was formed in the bis-imidazolium salts with long side-chains (C
11
and C
12
). Soft plastic and liquid crystalline phases were also confirmed by wide-angle X-ray diffraction. For the bis-imidazolium salts exhibiting a plastic crystal mesophase, the ionic conductivity suddenly increased at the melting temperature. However, the bis-imidazolium salts with long side-chains showed a slope increase during the liquid crystal-liquid crystal transition.
A series of dicationic imidazolium bis(tetrafluoroborate) salts were newly synthesized, and their phase transition behaviors were correlated with thermal, scattering, optical and conductivity results. |
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Bibliography: | Electronic supplementary information (ESI) available. See DOI 10.1039/c8ra09208g |
ISSN: | 2046-2069 |
DOI: | 10.1039/c8ra09208g |