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Issue 8, 2003
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Polycatenar vinamidinium salts—low-melting ionic mesogens displaying columnar mesomorphism

Carsten P. Roll,a   Bertrand Donnio,b   Daniel Guillonb  and  Wolfgang Weigand*a  
Author affiliations

* Corresponding authors

a Institute of Inorganic and Analytical Chemistry, Friedrich-Schiller-Universität Jena, August-Bebel-Str. 2, Jena, Germany
E-mail: c8wewo@uni-jena.de
Fax: 49 (0)3641 948102
Tel: 49 (0)3641 948160

b Institut de Physique et Chimie des Matériaux de Strasbourg, Groupe des Matériaux Organiques, UMR 7504 CNRS-ULP, 23 rue du Loess, BP 43, Strasbourg Cedex 2, France
E-mail: bertrand.donnio@ipcms.u-strasbg.fr
Fax: 33 (0)388 107246
Tel: 33 (0)388 107157

Abstract

A few hexacatenar mesogens derived from vinamidinium salts were synthesized and their mesomorphic properties investigated by optical polarization microscopy (POM), differential scanning calorimetry (DSC) and small-angle X-ray scattering (SAXS). In contrast to the free vinamidine and the corresponding vinamidinium perchlorate salt, the chloride, bromide and triflate derivatives gave rise to hexagonal columnar mesophases with remarkable phase stability and melting temperatures just slightly above room temperature.

Graphical abstract: Polycatenar vinamidinium salts—low-melting ionic mesogens displaying columnar mesomorphism

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Article information

https://doi.org/10.1039/B305690B
Submitted
21 May 2003
Accepted
09 Jun 2003
First published
20 Jun 2003
J. Mater. Chem., 2003,13, 1883-1886
Article type
Paper
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Polycatenar vinamidinium salts—low-melting ionic mesogens displaying columnar mesomorphism

C. P. Roll, B. Donnio, D. Guillon and W. Weigand, J. Mater. Chem., 2003, 13, 1883
DOI: 10.1039/B305690B

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