SupraBank - Considerable Change of Fluorescence Properties upon Multiple Binding of Coralyne to 4-Sulfonatocalixarenes

DOI:: https://doi.org/10.34804/supra.20210928314
Title:: Considerable Change of Fluorescence Properties upon Multiple Binding of Coralyne to 4-Sulfonatocalixarenes

Description:: The interaction of coralyne, an analogue of natural protoberberine alkaloids, with 4-sulfonatocalixarenes (SCXn) was studied in aqueous solution at pH 2 to reveal the major factors determining the stability, stoichiometry, and fluorescent properties of the species formed. Addition of SCXn to coralyne solution brought about remarkable fluorescence intensity diminution and hypochromism in the 300−440 nm absorption domain. SCXn hosts were capable of binding as many coralyne molecules as the number of their hydroxybenzenesulfonate units. The SCXn-promoted interaction among coralyne molecules was evidenced by the appearance of a long-lived fluorescence component. In dilute alkaloid solution, 1:1 and 1:2 coralyne/4-sulfonatocalix[4]arene complexes were formed, but only 1:1 association occurred with 4-sulfonatocalix[8]arene. Time-resolved fluorescence measurements demonstrated that photoinduced electron transfer from a hydroxybenzenesulfonate moiety to the singlet-excited coralyne can compete efficiently with the other deactivation processes.

Views	Downloads	Citations
1463	0	0

How can we help you?

Choose This is a comprehensive overview please explain what each part means.
Choose I currently do not really know what to do next, please give me some guidance.

Close Guide

Citation:	L. Biczók, M. Megyesi, SupraBank 2025, Considerable Change of Fluorescence Properties upon Multiple Binding of Coralyne to 4-Sulfonatocalixarenes (dataset). https://doi.org/10.34804/supra.20210928314
Link:	https://doi.org/10.34804/supra.20210928314
Export:	BibTex \| RIS \| EndNote

Citation:	M. Megyesi, L. Biczók, J. Phys. Chem. B 2010, 114, 2814–2819.
Link:	https://doi.org/10.1021/jp910418k
Export:	BibTex \| RIS \| EndNote \|