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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, 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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Publication details

The article was received on 21 May 2003, accepted on 09 Jun 2003 and first published on 20 Jun 2003


Article type: Paper
DOI: 10.1039/B305690B
J. Mater. Chem., 2003,13, 1883-1886

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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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