Issue 18, 2023
From the journal:

Analyst

Optical detection of alcohols with a Cu(i)HETPHEN complex by reversible aldehyde to hemiacetal conversion†

Lei Wang, ORCID logo *ab   Zhu-Lin Xie, ORCID logo b   Xin Li,a   Vincent M. Lynchc  and  Karen L. Mulfort ORCID logo *b  

* Corresponding authors

a School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
E-mail: leiwang@usst.edu.cn

b Division of Chemical Sciences and Engineering, Argonne National Laboratory, Lemont, IL 60439, USA
E-mail: mulfort@anl.gov

c Department of Chemistry, University of Texas Austin, Austin, TX, USA

Abstract

A heteroleptic copper(I) bis(phenanthroline) complex with aldehyde groups at the 4,7 positions of the phenanthroline ligand was synthesized. The complex is responsive to alcohol, resulting in a distinct colour change caused by the facile reaction of the aldehyde group with alcohol, forming a hemiacetal product. The aldehyde species can be regenerated after heating the intermediate at 80 °C for 10 minutes, demonstrating the reusability of the complex for alcohol detection. This work presents a new strategy for applying transition metal complexes in small molecule sensing by installing functional groups in the secondary coordination sphere which reversibly react with analytes.

Graphical abstract: Optical detection of alcohols with a Cu(i)HETPHEN complex by reversible aldehyde to hemiacetal conversion

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Article information

DOI
https://doi.org/10.1039/D3AN01005H
Article type
Communication
Submitted
19 Jun 2023
Accepted
17 Aug 2023
First published
17 Aug 2023

Analyst, 2023,148, 4274-4278

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Optical detection of alcohols with a Cu(I)HETPHEN complex by reversible aldehyde to hemiacetal conversion

L. Wang, Z. Xie, X. Li, V. M. Lynch and K. L. Mulfort, Analyst, 2023, 148, 4274 DOI: 10.1039/D3AN01005H

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