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author:

Zhuo, Ji-Bin (Zhuo, Ji-Bin.) [1] | Yan, Jian-Feng (Yan, Jian-Feng.) [2] | Yuan, Yao-Feng (Yuan, Yao-Feng.) [3]

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EI

Abstract:

A novel multi-site receptor 1 bearing four ferrocenyl arms comprising benzimidazolium moieties was synthesized and structurally characterized by IR, NMR, elemental analysis, mass spectra. Moreover, the structure of receptor 1 was confirmed by X-ray crystallography, it was clear that the cationic heterocyclic was interacted with PF6− through C–H···F hydrogen bonds. Its electrochemical properties of sensing the various anions were investigated by cyclic voltammograms (CV) and differential pulse voltammetry (DPV), the receptor 1 displayed a significant cathodic shift for F−and OH−. The addition of F− and OH−to the solution of receptor 1 resulted in obvious absorption changes in the UV–Vis spectrum, showing that receptor 1 was an excellent sensor for these analytes (F−: LOD = 3.11 × 10−6 M, LOQ = 1.03 × 10−5 M, Ka = 5.83 × 105 M−1; and OH–: LOD = 1.36 × 10−6 M, LOQ = 4.11 × 10−5 M, Ka = 9.03 × 105 M−1). 1H NMR titrations demonstrated that anion was recognized by receptor 1 through (C–H)+···X− and C–H···X hydrogen bonds, the binding process involve initial formation of hydrogen bond and followed by deprotonation. © 2024

Keyword:

Alkylation Cyclic voltammetry Hydrogen bonds Nuclear magnetic resonance spectroscopy Synthesis (chemical) Titration

Community:

  • [ 1 ] [Zhuo, Ji-Bin]Fujian Metrology Institute, Fujian, Fuzhou; 350003, China
  • [ 2 ] [Yan, Jian-Feng]Department of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Yuan, Yao-Feng]Department of Chemistry, Fuzhou University, Fuzhou; 350108, China

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Source :

Journal of Organometallic Chemistry

ISSN: 0022-328X

Year: 2024

Volume: 1021

2 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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