Rapid and reliable triple-emissive detection of 2,6-dichloro-4-nitroaniline as a pesticide based on a high-nuclear Cd()-Sm() nanocluster

A luminescent 56-metal Cd( ii )-Sm( iii ) nanocluster ( 1 , molecular sizes: 4.5 × 2.7 × 2.7 nm) was constructed from a flexible Schiff base ligand, and its crystal structure was determined using the X-ray diffraction method. It shows a rapid triple-emissive response to 2,6-dichloro-4-nitroaniline (...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2022-11, Vol.51 (43), p.16522-16526
Main Authors: Leng, Xilong, Yang, Xiaoping, Ma, Yanan, Wang, Chengri, Li, Hao, Zhang, Zhen, Yang, Keqin, Schipper, Desmond
Format: Article
Language:English
Subjects:
Cadmium
Crystal structure
Imines
Ligands
Nanoclusters
Pesticides
Samarium
Selectivity
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Summary:A luminescent 56-metal Cd( ii )-Sm( iii ) nanocluster ( 1 , molecular sizes: 4.5 × 2.7 × 2.7 nm) was constructed from a flexible Schiff base ligand, and its crystal structure was determined using the X-ray diffraction method. It shows a rapid triple-emissive response to 2,6-dichloro-4-nitroaniline (DCN, a common pesticide) with high sensitivity and selectivity, which can be used to quantitatively analyze the DCN concentrations in fruit extracts. The limits of detection (LODs) of 1 to DCN for the visible ligand-centered and Sm( iii ) emissions and NIR Sm( iii ) luminescence are from 0.95 μM to 2.81 μM. A 56-metal Cd( ii )-Sm( iii ) nanocluster (molecular sizes: 4.5 × 2.7 × 2.7 nm) was constructed for the rapid and reliable triple-emissive detection of 2,6-dichloro-4-nitroaniline (DCN) as a pesticide.
ISSN:1477-9226
1477-9234
DOI:10.1039/d2dt02901d