TY  - JOUR
A1  - Rieth, Thorsten
A1  - Tober, Natalie
A1  - Limbach, Daniel
A1  - Haspel, Tobias
A1  - Sperner, Marcel
A1  - Schupp, Niklas
A1  - Wicker, Philipp
A1  - Glang, Stefan
A1  - Lehmann, Matthias
A1  - Detert, Heiner
T1  - Impact of substitution pattern and chain length on the thermotropic properties of alkoxy-substituted triphenyl-tristriazolotriazines
JF  - Molecules
N2  - Tristriazolotriazines (TTTs) with a threefold alkoxyphenyl substitution were prepared and studied by DSC, polarized optical microscopy (POM) and X-ray scattering. Six pentyloxy chains are sufficient to induce liquid-crystalline behavior in these star-shaped compounds. Thermotropic properties of TTTs with varying substitution patterns and a periphery of linear chains of different lengths, branching in the chain and swallow-tails, are compared. Generally, these disks display broad and stable thermotropic mesophases, with the tangential TTT being superior to the radial isomer. The structure–property relationships of the number of alkyl chains, their position, length and structure were studied.
KW  - star-shaped compounds
KW  - discotic liquid crystals
KW  - X-ray diffraction
KW  - differential scanning calorimetry
KW  - polarizing optical microscopy
KW  - swallow-tail
KW  - heterocycles
KW  - structure–property relation
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-220019
SN  - 1420-3049
VL  - 25
IS  - 23
ER  -