Sensitive detection of formaldehyde via a luminescent distorted Eu4L4 tetrahedral cage

Ran Li; Xuan Deng; Fan Yin; Xiao-Fang Duan; Li-Peng Zhou; Yang Zhou; Xiao-Qing Guo; Qing-Fu Sun

doi:10.1039/D4CC05823B

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Sensitive detection of formaldehyde via a luminescent distorted Eu₄L₄ tetrahedral cage†

Ran Li,^ab Xuan Deng,^ab Fan Yin,^b Xiao-Fang Duan,^b Li-Peng Zhou,

^b Yang Zhou,^b Xiao-Qing Guo*^b and Qing-Fu Sun

*^ab

Author affiliations

* Corresponding authors

^a College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China

^b Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
E-mail: guoxiaoqing@fjirsm.ac.cn, qfsun@fjirsm.ac.cn

Abstract

A distorted low-symmetry Eu₄L₄ tetrahedral cage was fabricated through the self-assembly of europium ions and C₃-symmetric bowl-shaped ligands containing a phosphangulene core. X-ray crystallography confirmed its unique architecture, featuring significant structural distortion and solvent-accessible coordination sites. This cage showcases exceptional luminescence-based sensitivity for formaldehyde detection compared to other analogs, achieving an impressive detection limit of 19.4 ppb.

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Article information

DOI: https://doi.org/10.1039/D4CC05823B
Article type: Communication
Submitted: 01 Nov 2024
Accepted: 27 Dec 2024
First published: 02 Jan 2025

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Chem. Commun., 2025,61, 2135-2138

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Sensitive detection of formaldehyde via a luminescent distorted Eu₄L₄ tetrahedral cage

R. Li, X. Deng, F. Yin, X. Duan, L. Zhou, Y. Zhou, X. Guo and Q. Sun, Chem. Commun., 2025, 61, 2135 DOI: 10.1039/D4CC05823B

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Chemical Communications