基于芘的双席夫碱荧光探针的合成及Zn<sup>2+</sup>识别研究

doi:10.11896/cldb.23090108

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Abstract A pyrene hydrazone double Schiff base fluorescence probe PHB was prepared using 1-pyrene formaldehyde and hydrazine hydrate as raw materials using a two-step method for identifying and detecting zinc ions. Spectral experiments have shown that the probe PHB has efficient and specific identification ability for Zn²⁺. After interacting with Zn²⁺, the fluorescence color of the solution changed from colorless to bright yellow, with a minimum detection limit of 0.074 μmol/L. The probe formed a new complex with Zn²⁺ in a 1∶1 stoichiometric ratio and had good anti-interfe-rence ability. The mechanism of action of probe PHB on Zn²⁺ was determined using density functional theory (DFT) calculations, HRMS, and ¹H NMR. The probe exhibited a fluorescence “off-on” emission response to Zn²⁺ through excited state intramolecular proton transfer (ESIPT) and intramolecular charge transfer (ICT) mechanisms. Applied research has shown that the test paper based on probe PHB could be used for micro detection of Zn²⁺.

Key words： pyrene fluorescence probe quantitative calculation test strip functional material

Published: 10 March 2025 Online: 2025-03-18

CLC number:

O657.3

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	Articles by authors
	HOU Xueqing
	WANG Yijing
	SHANG Guangfu
	WANG Huanjiang
	HE Shuhua

Cite this article:

HOU Xueqing,WANG Yijing,SHANG Guangfu, et al. Synthesis and Zn²⁺ Identification of Double Schiff Base Fluorescent Probes Based on Pyrene[J]. Materials Reports, 2025, 39(5): 23090108-6.

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https://www.mater-rep.com/EN/10.11896/cldb.23090108 OR https://www.mater-rep.com/EN/Y2025/V39/I5/23090108

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