Search
Abstract
The spectroscopic properties of a series of para-hydroxyazobenzocrowns, including three novel compounds, were investigated using UV–Vis absorption and emission spectroscopy. This study presents, for the first time, determined quantum yield (QY) values for macrocycles of this category, ranging between 0.122 and 0.195. The highest values were obtained for crowns bearing two phenyl substituents in benzene rings. The impact of aromatic ring substituents and macroring size on the spectral characterization (1H NMR and FTIR) of p-hydroxyazobenzocrowns was examined in consideration of the azophenol ⇄ quinone-hydrazone tautomeric equilibrium. Dipole moments of p-hydroxyazobenzocrowns in the ground and excited states have been determined. The alignment between experimental findings and theoretical studies was established.
Citations
-
1
CrossRef
-
0
Web of Science
-
1
Scopus
Authors (4)
Cite as
Full text
full text is not available in portal
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
no. 308,
ISSN: 1386-1425 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Szulc P., Luboch E., Okuniewski A., Wagner-Wysiecka E.: Fluorescence of p-hydroxyazobenzocrowns – Tautomeric equilibrium effect// SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY -Vol. 308, (2024), s.123721-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.saa.2023.123721
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
seen 84 times
Recommended for you
Supramolecular Synthesis Based on a Combination of Se···N Secondary Bonding Interactions with Hydrogen and Halogen Bonds
- K. Eichstaedt,
- A. Wasilewska,
- B. Wicher
- + 2 authors