Absorption spectra of the dibenzofluorene derivative belonging to the KuQuinones family

Authors

DOI:

https://doi.org/10.17721/fujcV12I1P180-182

Keywords:

KuQuinones, dibenzofluorene derivative, UV-Vis spectra, keto–enol tautomerization, pH

Abstract

A detailed study of the UV-Vis spectra of the dibenzofluorene derivative belonging to the KuQuinones family was carried out in polar aprotic (CH3CN), polar protic (CH3OH), and slightly polar (CHCl3) solvents. The spectral properties of this compound underscore its similarity to other KuQuinones on the one hand, while on the other hand they confirm that it is not a planar but a three-dimensional (3D) structure with separated charges. The existence of keto–enol tautomerization and acid-base equilibrium under different pH conditions has also been investigated.

References

Coletti A, Lentini S, Conte V, Floris B, Bortolini O, Sforza F, Grepioni F, Galloni P. Unexpected One-Pot Synthesis of Highly Conjugated Pentacyclic Diquinoid Compounds. The Journal of Organic Chemistry 2012;77(16):6873-6879. https://doi.org/10.1021/jo300985x

Valentini F, Sabuzi F, Forchetta M, Conte V, Galloni P. KuQuinones: a ten years tale of the new pentacyclic quinoid compound. RSC Advances 2023;13(13):9065-9077. https://doi.org/10.1039/d3ra00539a

Onuki M, Ota M, Otokozawa S, Kamo S, Tomoshige S, Tsubaki K, Kuramochi K. Dimerizations of 2-bromo-3-methyl-1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone in tetra-n-butylammonium bromide. Tetrahedron 2020;76(6):130899. https://doi.org/10.1016/j.tet.2019.130899

Sabuzi F, Lentini S, Sforza F, Pezzola S, Fratelli S, Bortolini O, Floris B, Conte V, Galloni P. KuQuinones Equilibria Assessment for Biomedical Applications. The Journal of Organic Chemistry 2017;82(19):10129-10138. https://doi.org/10.1021/acs.joc.7b01602

Haimeur A, Levkov I, Yegorova T, Kysil A, Bugera O, Konovalova I, Shishkina S, Bakkali H, Blanco E, Voitenko Z. Dibenzofluorene derivative for nonlinear optics and solar cells applications. Molecular Crystals and Liquid Crystals 2021;716(1):94-102. https://doi.org/10.1080/15421406.2020.1859699

Levkov I, Yegorova T, Kysil A, Vedrenne M, Voitenko Z. Reaction of 1-aminoisoindole with 1,4-naphthoquinone and study of the product by spectroscopic methods. French-Ukrainian Journal of Chemistry 2018;6(2):27-31. https://doi.org/10.17721/fujcv6i2p27-31

Downloads

Published

2025-04-22

Issue

Vol. 12 No. 1 (2024)

Section

Articles

License

Copyright (c) 2025 French-Ukrainian Journal of Chemistry

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The French‑Ukrainian Journal of Chemistry holds copyright and publishes all articles under a Creative Commons Attribution 4.0 International licence (CC BY 4.0).
This license permits unrestricted use, sharing, adaptation, distribution, and reproduction in any medium or format, provided that the original author(s) and source are credited, a link to the license is included, and any changes made are indicated.
Authors grant the French‑Ukrainian Journal of Chemistry the exclusive right of first publication and may enter into separate, non‑exclusive distribution agreements for the published version (e.g., institutional repository, book chapter). Authors are also encouraged to post pre‑prints and post‑prints online to increase visibility and citation.