A highly selective chromogenic and fluorogenic chemodosimeter for dual detection of Cu2+ based on a redox-active calix[4]arene with isoxazolylchloroanthracene. Issue 22 (11th October 2022)
- Record Type:
- Journal Article
- Title:
- A highly selective chromogenic and fluorogenic chemodosimeter for dual detection of Cu2+ based on a redox-active calix[4]arene with isoxazolylchloroanthracene. Issue 22 (11th October 2022)
- Main Title:
- A highly selective chromogenic and fluorogenic chemodosimeter for dual detection of Cu2+ based on a redox-active calix[4]arene with isoxazolylchloroanthracene
- Authors:
- Chang, Kai-Chi
Chen, Chan-Yu
Hsu, Chin-Yun
Lee, Li-Wei
Chung, Wen-Sheng - Abstract:
- Abstract : Calix[4]arene 1 with 25, 27-diisoxazolylchloroanthryl groups is a chromogenic and fluorogenic sensor for Cu 2+ with a LOD of 1.67 μM by fluorescence. Calix[4]diquinone was obtained in high yield through the redox reaction of ligand 1 with Cu(ClO4 )2 . Abstract : Calix[4]arene 1, with two lower-rim isoxazolylchloroanthracene groups, is shown to be not only a chromogenic but also a fluorogenic chemodosimeter for the selective sensing of Cu 2+ . The binding properties of ligand 1 and control compounds 2 and 3 toward metal ions in CH3 CN/CHCl3 (v/v, 1 : 1) were investigated by UV-vis and fluorescence spectroscopy. The results showed that only ligand 1 was highly selective for Cu 2+ ions. When complexed with Cu 2+, ligand 1 displayed a new absorption band around 435 nm and the color of the solution changed from colorless to yellow. Furthermore, the fluorescence of ligand 1 was severely quenched by Cu 2+ and the limit of detection (LOD) was determined to be 1.674 μM. Therefore, compound 1 is not only a chromogenic but also a fluorogenic sensor for the detection of Cu 2+ ions over other metal ions examined. When complexed with ligand 1, Cu 2+ was reduced to Cu + by the free phenolic-OH of ligand 1 and concurrently the phenol was oxidized by Cu 2+ to quinones. The 1 H NMR, EPR, and FTIR spectra provided evidence for the redox behavior of ligand 1 with Cu 2+ . The isolation of calix[4]diquinone 8 and Cu(CH3 CN)4 ClO4 from the reaction of ligand 1 with Cu(ClO4 )2 confirmedAbstract : Calix[4]arene 1 with 25, 27-diisoxazolylchloroanthryl groups is a chromogenic and fluorogenic sensor for Cu 2+ with a LOD of 1.67 μM by fluorescence. Calix[4]diquinone was obtained in high yield through the redox reaction of ligand 1 with Cu(ClO4 )2 . Abstract : Calix[4]arene 1, with two lower-rim isoxazolylchloroanthracene groups, is shown to be not only a chromogenic but also a fluorogenic chemodosimeter for the selective sensing of Cu 2+ . The binding properties of ligand 1 and control compounds 2 and 3 toward metal ions in CH3 CN/CHCl3 (v/v, 1 : 1) were investigated by UV-vis and fluorescence spectroscopy. The results showed that only ligand 1 was highly selective for Cu 2+ ions. When complexed with Cu 2+, ligand 1 displayed a new absorption band around 435 nm and the color of the solution changed from colorless to yellow. Furthermore, the fluorescence of ligand 1 was severely quenched by Cu 2+ and the limit of detection (LOD) was determined to be 1.674 μM. Therefore, compound 1 is not only a chromogenic but also a fluorogenic sensor for the detection of Cu 2+ ions over other metal ions examined. When complexed with ligand 1, Cu 2+ was reduced to Cu + by the free phenolic-OH of ligand 1 and concurrently the phenol was oxidized by Cu 2+ to quinones. The 1 H NMR, EPR, and FTIR spectra provided evidence for the redox behavior of ligand 1 with Cu 2+ . The isolation of calix[4]diquinone 8 and Cu(CH3 CN)4 ClO4 from the reaction of ligand 1 with Cu(ClO4 )2 confirmed their redox reaction. … (more)
- Is Part Of:
- Analyst. Volume 147:Issue 22(2022)
- Journal:
- Analyst
- Issue:
- Volume 147:Issue 22(2022)
- Issue Display:
- Volume 147, Issue 22 (2022)
- Year:
- 2022
- Volume:
- 147
- Issue:
- 22
- Issue Sort Value:
- 2022-0147-0022-0000
- Page Start:
- 5105
- Page End:
- 5112
- Publication Date:
- 2022-10-11
- Subjects:
- Chemistry, Analytic -- Periodicals
543 - Journal URLs:
- http://pubs.rsc.org/en/journals/journalissues/an?e=1#!issueid=an139020&type=current&issnprint=0003-2654 ↗
http://www.rsc.org/ ↗ - DOI:
- 10.1039/d2an01201d ↗
- Languages:
- English
- ISSNs:
- 0003-2654
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 0893.000000
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 24270.xml