Unconventional ionic liquid crystals in which the liquid crystallinity is enabled by halogen-bonded supramolecular anions [CnF2 n+1-I⋯I⋯I-CnF2 n+1]- are reported. The material system is unique in many ways, demonstrating for the first time 1) ionic, halogen-bonded liquid crystals, and 2) imidazolium-based ionic liquid crystals in which the occurrence of liquid crystallinity is not driven by the alkyl chains of the cation. Out of the ordinary: The high directionality of halogen bonds and the fluorophobic effect were exploited in the design and synthesis of a new family of unconventional superfluorinated ionic liquid crystals. The liquid crystallinity of the system is driven by halogen-bonded supramolecular anions [CnF2 n+1-I⋯I⋯I-CnF2 n+1]- which act as rigid rod-like calamitic units.

Cavallo G., Terraneo G., Monfredini A., Saccone M., Priimagi A., Pilati T., et al. (2016). Superfluorinated ionic liquid crystals based on supramolecular, halogen-bonded anions. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 55(21), 6300-6304 [10.1002/anie.201601278].

Superfluorinated ionic liquid crystals based on supramolecular, halogen-bonded anions

Saccone M.
Methodology
;
2016-01-01

Abstract

Unconventional ionic liquid crystals in which the liquid crystallinity is enabled by halogen-bonded supramolecular anions [CnF2 n+1-I⋯I⋯I-CnF2 n+1]- are reported. The material system is unique in many ways, demonstrating for the first time 1) ionic, halogen-bonded liquid crystals, and 2) imidazolium-based ionic liquid crystals in which the occurrence of liquid crystallinity is not driven by the alkyl chains of the cation. Out of the ordinary: The high directionality of halogen bonds and the fluorophobic effect were exploited in the design and synthesis of a new family of unconventional superfluorinated ionic liquid crystals. The liquid crystallinity of the system is driven by halogen-bonded supramolecular anions [CnF2 n+1-I⋯I⋯I-CnF2 n+1]- which act as rigid rod-like calamitic units.
Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie
http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-3773
Cavallo G., Terraneo G., Monfredini A., Saccone M., Priimagi A., Pilati T., et al. (2016). Superfluorinated ionic liquid crystals based on supramolecular, halogen-bonded anions. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 55(21), 6300-6304 [10.1002/anie.201601278].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/398580
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