π-Conjugated molecules identified for reversible and visual detection of F in aqueous: Effect of heterocycle unit on sensing performance.

Clicks: 248
ID: 56906
2019
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #76 of 116 articles by views in spectrochimica acta part a, molecular and biomolecular spectroscopy

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
To illustrate the impact of molecular structure, especially heterocycle unit, on the sensing performance, two kinds of π-conjugated molecules containing aromatic heterocyclic (Dye 1) and aromatic ring (Dye 2) were identified and compared each other. Even with similar structures, they possessed quite different spectral and colorimetric responses to F, Cl, Br, I, NO, HSO, HPO, ClO and CHCOO, etc. The reason might result from the difference in withdraw-electron ability of aromatic and heterocyclic rings, which would lead to different acidity of active H in the target π-conjugated molecules. In acidic aqueous, Dye 1 expressed a reversible ratiometric-colorimetric response to F, accompanying with a visual color change from bright yellow to purple, a nice linear range of 2.0-35.0 × 10 mol/L and a low detection limit of 1.60 × 10 mol/L. While Dye 2 did not react with any anion due to its weak acidity of active hydrogen. Under the optimized conditions, Dye 1 was successfully applied for colorimetric or naked-eye detection of F in environmental water, tea and toothpaste samples with RSD ≤ 3.1%. The recognition mechanism for Dye 1 to F was confirmed to be deprotonation one with a 1:1 binding stoichiometry.
Reference Key
yan2019conjugatedspectrochimica Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yan, Zhengquan;Wang, Cong;Tang, Yulian;Zhu, Yanjie;Cao, Qianying;Yang, Tianran;Hu, Lei;
Journal spectrochimica acta part a, molecular and biomolecular spectroscopy
Year 2019
DOI
S1386-1425(19)30841-8
URL
Keywords
f(−) heterocycle π-conjugated system recognition mechanism relationship between structure and performance reversible and visual sensing

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.