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Proceedings Paper

Synthesis and mesomorphic properties of 5,10,15,20-tetra(aminophenyl)porphin derivatives on the basis of 3,4,5-trihydroxybenzoic acid
Author(s): V. Bykova; M. Zharova; A. Semeikin; T. Karmanova; Nadezhda Usol'tseva
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Paper Abstract

The synthesis and investigation of mesomorphic properties of 5,10,15,20-tetra(aminophenyl)porphin derivatives on the basis of 3,4,5-trihydroxybezoic acid were carried out to study the influence of molecular structure geometry on thermotropic and lyotropic mesomorphism in a number of organic solvents. Introduction of two bulky fragments into R1 position (X, XI) or four bulky fragments into R1 and R2 (XII, XIII) positions (in case of meta- or ortho-substitution of benzene rings) leads to emerging of monotropic mesophase. Tetra-substitution of porphyrine cycle in the para-position of the benzene ring (compound XIV) reveals the enantiotropic mesophase. The influence of bulky fragments on the glass-forming capacity of the compounds was researched.

Paper Details

Date Published: 1 September 2004
PDF: 6 pages
Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); doi: 10.1117/12.581076
Show Author Affiliations
V. Bykova, Ivanovo State Univ. (Russia)
M. Zharova, Ivanovo State Univ. (Russia)
A. Semeikin, Ivanovo State Univ. of Chemistry and Technology (Russia)
T. Karmanova, Ivanovo State Univ. of Chemistry and Technology (Russia)
Nadezhda Usol'tseva, Ivanovo State Univ. (Russia)


Published in SPIE Proceedings Vol. 5565:
XV Conference on Liquid Crystals
Jozef Zmija, Editor(s)

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