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

Gabriella Cavallo; Giancarlo Terraneo; Alessandro Monfredini; Marco Saccone; Arri Priimagi; Tullio Pilati; Giuseppe Resnati; Pierangelo Metrangolo; Duncan W. Bruce

doi:10.1002/anie.201601278

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

Gabriella Cavallo, Giancarlo Terraneo, Alessandro Monfredini, Marco Saccone, Arri Priimagi, Tullio Pilati, Giuseppe Resnati, Pierangelo Metrangolo, Duncan W. Bruce

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

Unconventional ionic liquid crystals in which the liquid crystallinity is enabled by halogen-bonded supramolecular anions [C_nF_{2 n+1}-I⋯I⋯I-C_nF_{2 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 [C_nF_{2 n+1}-I⋯I⋯I-C_nF_{2 n+1}]^- which act as rigid rod-like calamitic units.

Lingua originale	Inglese
pagine (da-a)	6300-6304
Numero di pagine	5
Rivista	Angewandte Chemie - International Edition
Volume	55
Numero di pubblicazione	21
DOI	https://doi.org/10.1002/anie.201601278
Stato di pubblicazione	Pubblicato - 17 mag 2016
Pubblicato esternamente	Sì

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

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.",

keywords = "fluorophobic effect, halogen bonding, ionic liquid crystals, self-assembly, supramolecular chemistry",

author = "Gabriella Cavallo and Giancarlo Terraneo and Alessandro Monfredini and Marco Saccone and Arri Priimagi and Tullio Pilati and Giuseppe Resnati and Pierangelo Metrangolo and Bruce, {Duncan W.}",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.",

year = "2016",

month = may,

day = "17",

doi = "10.1002/anie.201601278",

language = "English",

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T1 - Superfluorinated ionic liquid crystals based on supramolecular, halogen-bonded anions

AU - Cavallo, Gabriella

AU - Terraneo, Giancarlo

AU - Monfredini, Alessandro

AU - Saccone, Marco

AU - Priimagi, Arri

AU - Pilati, Tullio

AU - Resnati, Giuseppe

AU - Metrangolo, Pierangelo

AU - Bruce, Duncan W.

PY - 2016/5/17

Y1 - 2016/5/17

N2 - 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.

AB - 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.

KW - fluorophobic effect

KW - halogen bonding

KW - ionic liquid crystals

KW - self-assembly

KW - supramolecular chemistry

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U2 - 10.1002/anie.201601278

DO - 10.1002/anie.201601278

M3 - Article

SN - 1433-7851

VL - 55

SP - 6300

EP - 6304

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 21

ER -

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

Abstract

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