Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic Molecule
The electrochemical and spectroelectrochemical properties of the discotic mesogen 2,3,6,7,10,11-pentyloxytriphenylene (H5T) were studied with the use of cyclic voltammetry combined with UV-Vis and electron paramagnetic resonance (EPR) spectroscopy in solution. The UV-Vis absorption spectroscopy of H...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/24/8/6924 |
| _version_ | 1797605156886413312 |
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| author | Piotr Ślęczkowski |
| author_facet | Piotr Ślęczkowski |
| author_sort | Piotr Ślęczkowski |
| collection | DOAJ |
| description | The electrochemical and spectroelectrochemical properties of the discotic mesogen 2,3,6,7,10,11-pentyloxytriphenylene (H5T) were studied with the use of cyclic voltammetry combined with UV-Vis and electron paramagnetic resonance (EPR) spectroscopy in solution. The UV-Vis absorption spectroscopy of H5T in dichloromethane showed its monomeric state in a concentration range up to 10<sup>−3</sup> mol dm<sup>−3</sup>. The reversible process of the electrochemical formation of the radical cation was evidenced within the experimentally accessible potential window. The in situ UV-Vis spectroelectrochemical measurements further enabled identification of the product of the redox process and evaluation of the effect of aggregation in the concentration range of 5 × 10<sup>−3</sup> mol dm<sup>−3</sup>. The results are discussed in the frame of solvent effects on the self-assembly propensity of solute molecules, in a wide range of concentrations. In particular, the crucial role of the solvent polarity is indicated, which contributes to the understanding of solution effects and pre-programming of supramolecular organic materials, in particular anisotropic disc-shaped hexa-substituted triphenylenes. |
| first_indexed | 2024-03-11T04:57:07Z |
| format | Article |
| id | doaj.art-6aa815dc4b244d1c9d20cf5d4f576a9f |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-11T04:57:07Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-6aa815dc4b244d1c9d20cf5d4f576a9f2023-11-17T19:32:31ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-04-01248692410.3390/ijms24086924Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic MoleculePiotr Ślęczkowski0International Centre for Research on Innovative Biobased Materials (ICRI-BioM)—International Research Agenda, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, PolandThe electrochemical and spectroelectrochemical properties of the discotic mesogen 2,3,6,7,10,11-pentyloxytriphenylene (H5T) were studied with the use of cyclic voltammetry combined with UV-Vis and electron paramagnetic resonance (EPR) spectroscopy in solution. The UV-Vis absorption spectroscopy of H5T in dichloromethane showed its monomeric state in a concentration range up to 10<sup>−3</sup> mol dm<sup>−3</sup>. The reversible process of the electrochemical formation of the radical cation was evidenced within the experimentally accessible potential window. The in situ UV-Vis spectroelectrochemical measurements further enabled identification of the product of the redox process and evaluation of the effect of aggregation in the concentration range of 5 × 10<sup>−3</sup> mol dm<sup>−3</sup>. The results are discussed in the frame of solvent effects on the self-assembly propensity of solute molecules, in a wide range of concentrations. In particular, the crucial role of the solvent polarity is indicated, which contributes to the understanding of solution effects and pre-programming of supramolecular organic materials, in particular anisotropic disc-shaped hexa-substituted triphenylenes.https://www.mdpi.com/1422-0067/24/8/6924discotic liquid crystalhexaalkoxytriphenylenesUV-Vis absorption spectroscopycyclic voltammetryEPR spectroelectrochemistrymolecular aggregation |
| spellingShingle | Piotr Ślęczkowski Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic Molecule International Journal of Molecular Sciences discotic liquid crystal hexaalkoxytriphenylenes UV-Vis absorption spectroscopy cyclic voltammetry EPR spectroelectrochemistry molecular aggregation |
| title | Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic Molecule |
| title_full | Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic Molecule |
| title_fullStr | Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic Molecule |
| title_full_unstemmed | Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic Molecule |
| title_short | Spectroscopic and Spectroelectrochemical Studies of Hexapentyloxytriphenylene—A Model Discotic Molecule |
| title_sort | spectroscopic and spectroelectrochemical studies of hexapentyloxytriphenylene a model discotic molecule |
| topic | discotic liquid crystal hexaalkoxytriphenylenes UV-Vis absorption spectroscopy cyclic voltammetry EPR spectroelectrochemistry molecular aggregation |
| url | https://www.mdpi.com/1422-0067/24/8/6924 |
| work_keys_str_mv | AT piotrsleczkowski spectroscopicandspectroelectrochemicalstudiesofhexapentyloxytriphenyleneamodeldiscoticmolecule |