A Water‐Soluble Cycloparaphenylene: Supramolecular Receptor with Visible Fluorescence

We report the first synthesis of a water‐soluble [9]cycloparaphenylene derivative containing three hydrindacene (1,2,3,5,6,7‐hexahydro‐s‐indacene) units with four carboxylates at the 2,6‐positions via a macrocyclic gold complex. This crown‐shaped macrocyclic compound exhibits remarkable water solubi...

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Bibliographic Details
Published in:	ChemistryEurope Vol. 2; no. 6
Main Authors:	Morito, Ryo, Kataoka, Takayuki, Saito, Kunio, Osakada, Kohtaro, Ide, Tomohito, Tsuchido, Yoshitaka, Kawai, Hidetoshi
Format:	Journal Article
Language:	English
Published:	Wiley-VCH 01-11-2024
Subjects:	Au(I) Complex Cycloparaphenylene Host-Guest Chemistry Water-soluble
Online Access:	Get full text
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Summary:	We report the first synthesis of a water‐soluble [9]cycloparaphenylene derivative containing three hydrindacene (1,2,3,5,6,7‐hexahydro‐s‐indacene) units with four carboxylates at the 2,6‐positions via a macrocyclic gold complex. This crown‐shaped macrocyclic compound exhibits remarkable water solubility, of up to 16 mmol L−1 (2.6 g/100 mL), as well as strong visible fluorescence in water (λem=447 nm, ϕF=0.64, brightness (ϵ×ϕF)=5.1×104). This molecule effectively encapsulates cationic guest compounds, such as methyl viologen dichloride, as indicated by a change in visible fluorescence. We have synthesized a water‐soluble [9]cycloparaphenylene derivative consisting of three hydrindacene units with four carboxylates though a macrocyclic gold complex. This crown‐shaped compound exhibits high water solubility and strong visible fluorescence. Furthermore, it encapsulates cationic guest molecules such as methyl viologen dichloride in aqueous solution, demonstrating visible fluorescence changes.
ISSN:	2751-4765 2751-4765
DOI:	10.1002/ceur.202400025