Efficient light-induced phase transitions in halogen-bonded liquid crystals

F. Pernandez-Palacio, M. Poutanen, M. Saccone (Corresponding Author), A. Siiskonen, G. Terraneo, G. Resnati, O. Ikkala, P. Metrangolo (Corresponding Author), A. Priimagi

Research output: Contribution to journalArticleScientificpeer-review

32 Citations (Scopus)

Abstract

Here, we present a new family of light-responsive, fluorinated supramolecular liquid crystals (LCs) showing efficient and reversible light-induced LC-to-isotropic phase transitions. Our materials design is based on fluorinated azobenzenes, where the fluorination serves to strengthen the noncovalent interaction with bond-accepting stilbazole molecules, and increase the lifetime of the cis-form of the azobenzene units. The halogen-bonded LCs were characterized by means of X-ray diffraction, hot-stage polarized optical microscopy, and differential scanning calorimetry. Simultaneous analysis of light-induced changes in birefringence, absorption, and optical scattering allowed us to estimate that
Original languageEnglish
Pages (from-to)8314-8321
JournalChemistry of Materials
Volume28
Issue number22
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Liquid Crystals
Halogens
Liquid crystals
Azobenzene
Phase transitions
Fluorination
Birefringence
Optical microscopy
Differential scanning calorimetry
Scattering
X ray diffraction
Molecules
azobenzene

Cite this

Pernandez-Palacio, F., Poutanen, M., Saccone, M., Siiskonen, A., Terraneo, G., Resnati, G., ... Priimagi, A. (2016). Efficient light-induced phase transitions in halogen-bonded liquid crystals. Chemistry of Materials, 28(22), 8314-8321. https://doi.org/10.1021/acs.chemmater.6b03460
Pernandez-Palacio, F. ; Poutanen, M. ; Saccone, M. ; Siiskonen, A. ; Terraneo, G. ; Resnati, G. ; Ikkala, O. ; Metrangolo, P. ; Priimagi, A. / Efficient light-induced phase transitions in halogen-bonded liquid crystals. In: Chemistry of Materials. 2016 ; Vol. 28, No. 22. pp. 8314-8321.
@article{6e548d50546441d592b8880d5bb82bd2,
title = "Efficient light-induced phase transitions in halogen-bonded liquid crystals",
abstract = "Here, we present a new family of light-responsive, fluorinated supramolecular liquid crystals (LCs) showing efficient and reversible light-induced LC-to-isotropic phase transitions. Our materials design is based on fluorinated azobenzenes, where the fluorination serves to strengthen the noncovalent interaction with bond-accepting stilbazole molecules, and increase the lifetime of the cis-form of the azobenzene units. The halogen-bonded LCs were characterized by means of X-ray diffraction, hot-stage polarized optical microscopy, and differential scanning calorimetry. Simultaneous analysis of light-induced changes in birefringence, absorption, and optical scattering allowed us to estimate that",
author = "F. Pernandez-Palacio and M. Poutanen and M. Saccone and A. Siiskonen and G. Terraneo and G. Resnati and O. Ikkala and P. Metrangolo and A. Priimagi",
year = "2016",
doi = "10.1021/acs.chemmater.6b03460",
language = "English",
volume = "28",
pages = "8314--8321",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "American Chemical Society",
number = "22",

}

Pernandez-Palacio, F, Poutanen, M, Saccone, M, Siiskonen, A, Terraneo, G, Resnati, G, Ikkala, O, Metrangolo, P & Priimagi, A 2016, 'Efficient light-induced phase transitions in halogen-bonded liquid crystals', Chemistry of Materials, vol. 28, no. 22, pp. 8314-8321. https://doi.org/10.1021/acs.chemmater.6b03460

Efficient light-induced phase transitions in halogen-bonded liquid crystals. / Pernandez-Palacio, F.; Poutanen, M.; Saccone, M. (Corresponding Author); Siiskonen, A.; Terraneo, G.; Resnati, G.; Ikkala, O.; Metrangolo, P. (Corresponding Author); Priimagi, A.

In: Chemistry of Materials, Vol. 28, No. 22, 2016, p. 8314-8321.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Efficient light-induced phase transitions in halogen-bonded liquid crystals

AU - Pernandez-Palacio, F.

AU - Poutanen, M.

AU - Saccone, M.

AU - Siiskonen, A.

AU - Terraneo, G.

AU - Resnati, G.

AU - Ikkala, O.

AU - Metrangolo, P.

AU - Priimagi, A.

PY - 2016

Y1 - 2016

N2 - Here, we present a new family of light-responsive, fluorinated supramolecular liquid crystals (LCs) showing efficient and reversible light-induced LC-to-isotropic phase transitions. Our materials design is based on fluorinated azobenzenes, where the fluorination serves to strengthen the noncovalent interaction with bond-accepting stilbazole molecules, and increase the lifetime of the cis-form of the azobenzene units. The halogen-bonded LCs were characterized by means of X-ray diffraction, hot-stage polarized optical microscopy, and differential scanning calorimetry. Simultaneous analysis of light-induced changes in birefringence, absorption, and optical scattering allowed us to estimate that

AB - Here, we present a new family of light-responsive, fluorinated supramolecular liquid crystals (LCs) showing efficient and reversible light-induced LC-to-isotropic phase transitions. Our materials design is based on fluorinated azobenzenes, where the fluorination serves to strengthen the noncovalent interaction with bond-accepting stilbazole molecules, and increase the lifetime of the cis-form of the azobenzene units. The halogen-bonded LCs were characterized by means of X-ray diffraction, hot-stage polarized optical microscopy, and differential scanning calorimetry. Simultaneous analysis of light-induced changes in birefringence, absorption, and optical scattering allowed us to estimate that

U2 - 10.1021/acs.chemmater.6b03460

DO - 10.1021/acs.chemmater.6b03460

M3 - Article

VL - 28

SP - 8314

EP - 8321

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 22

ER -

Pernandez-Palacio F, Poutanen M, Saccone M, Siiskonen A, Terraneo G, Resnati G et al. Efficient light-induced phase transitions in halogen-bonded liquid crystals. Chemistry of Materials. 2016;28(22):8314-8321. https://doi.org/10.1021/acs.chemmater.6b03460