Zinc Sulfate Open Frameworks with Nonconventional Room-Temperature Phosphorescence for Selective Amine Vapor Detection

IF 4.3 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2025-04-02 DOI:10.1021/acs.inorgchem.5c00917

Lei Miao, Bo-Lun Zhang, Wen-Tao Song, Jun Chen, Wen-Jing Shi, Rui-Hong Wang, Shuqin Liu, Ying-Jia Li, Jian-Jun Zhang

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引用次数: 0

Abstract

Molecular-based afterglow materials have garnered significant attention due to their diverse applications. However, most studies focus on conventional luminophores, leaving nonconventional systems underexplored, particularly regarding the screening of new material subclasses and the development of applications such as sensing. Herein we report the successful preparation of two new two-dimensional ZnSO₄-based open-framework materials (OFMs)─(H₂DABCO)[Zn₃(μ₃-OH)₂(SO₄)₃]·H₂O (1) and (H₂DABCO)[Zn(SO₄)₂] (2)─through self-assembly of Zn²⁺/SO₄^2– with nonaromatic triethylenediamine (DABCO). Both compounds exhibit distinct delayed emission characteristics with lifetimes of 259.10 ms (1) and 49.62 μs (2), respectively. Frontier orbital analysis reveals the key role of charge transfer between sulfate groups to (H₂DABCO)²⁺ cations in the luminescence. Notably, 1 demonstrates exceptional performance as an afterglow probe for the selective detection of n-propylamine and n-butylamine vapors, achieving detection limits of 32.99 and 47.18 ppm, respectively. The sensing mechanism involves a phase-transition process, and the luminescence change can be observed by the naked eye. This work pioneers the integration of sulfate-based OFMs with nonconventional room-temperature phosphorescence properties, demonstrating their potential as afterglow probes for industrial and environmental monitoring.

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.