A single probe for solvent dependent optical recognition of iron(II/III) and arsenite: discrimination between iron redox states with single crystal X-ray structure evidence
oleh: Jayanta Das, Milan Ghosh, Biplab Ghosh, Prasenjit Mandal, Sangita Maji, Debasis Das
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2023-10-01 |
Deskripsi
Abstract The detection and discrimination of Fe2+ and Fe3+ ions have been investigated using a simple probe (L), produced by the condensation of ethylenediamine and 3-ethoxysalicyaldehyde. Single crystal X-ray structures demonstrate that L interacts with Fe2+ and Fe3+. In aqueous-DMSO media, the L recognises AsO2 − by fluorescence and colorimetry techniques. The AsO2 − aided PET inhibition and H-bond assisted chelation enhanced fluorescence (CHEF) boost fluorescence by 91-fold. The L can detect 0.354 ppb Fe2+, 0.22 ppb Fe3+ and 0.235 ppt AsO2 −.