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Liquid Crystals Volume 50, 2023 - Issue 7-10: In memoriam Maria Teresa Cidade, 28th International Liquid Crystal Conference (ILCC 2022); Guest editors: Maria Helena Godinho, Susete Nogueira Fernandes and Pedro Lúcio Almeida
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Design of New Materials

Effect of alkyloxy substituents on mesomorphic and photophysical properties of star-shaped tristriazolotriazines

N. V. Zharnikovaa Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian FederationView further author information
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O. B. Akopovaa Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian FederationView further author information
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A. V. Kazaka Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian Federation;b Department of Physics, Moscow Polytechnic University, Moscow, Russian FederationView further author information
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K. S. Nikitina Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian Federation;c Laboratory of Coordination Chemistry of Macrocyclic Compounds, G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russian FederationView further author information
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S. D. Usoltseva Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian Federation;d Inorganic Chemistry Department, Ivanovo State University of Chemistry and Technology, Ivanovo, Russian FederationView further author information
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N. A. Pigolkinaa Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian Federation;d Inorganic Chemistry Department, Ivanovo State University of Chemistry and Technology, Ivanovo, Russian FederationView further author information
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N. I. Girichevaa Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian FederationView further author information
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A. I. Smirnovaa Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian FederationView further author information
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V. A. Kuleva Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian Federation;e Department of Chemical Technology of Fibrous Materials, Ivanovo State University of Chemistry and Technology, Ivanovo, Russian FederationView further author information
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I. V. Kholodkovf Department of Technology of Electronic Materials and Devices, Ivanovo State University of Chemistry and Technology, Ivanovo, Russian FederationView further author information
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Yu. S. Marfing Pacific National University, Khabarovsk, Russian FederationView further author information
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N. V. Usol’tsevaa Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russian FederationCorrespondence[email protected]
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Pages 1296-1309 | Received 01 Nov 2022, Accepted 25 Mar 2023, Published online: 11 Apr 2023
 
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ABSTRACT

Two series of tristriazolotriazine (TTT) derivatives with different length of aliphatic substituents have been synthesised in order to study the influence of peripheral substitution on mesomorphism and fluorescent properties of these star-shaped compounds. Homologues with methoxy and alkyloxy substituents (series 1) are non-mesogenic, in contrast to homologues with two alkyloxy substituents (series 2) exhibiting columnar mesophase. The results obtained by quantum-chemical calculations for the monomers and dimers of non-mesogenic TTT series and their comparison with truxenone derivatives having identical substituents made it possible to establish the reasons that deprive series 1 of mesogenity. Compounds of both TTT series possess good solubility in organic solvents and capable of specific interactions with solvents in the ground and excited states. They form fluorescenting floating layers and thin films. An analysis of the fluorescence spectra showed a high potential for their application, in particular, in the field of molecular sensing and precise non-invasive control.

GRAPHICAL ABSTRACT

Disclosure statement

No potential conflict of interest was reported by the author(s).

Supplementary data

Supplemental data for this article can be accessed online at https://doi.org/10.1080/02678292.2023.2196523

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

This work was supported by the Ministry of Education and Science of the Russian Federation [projects no. FZZM-2020-0006, FZZM-2023-0009].

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