Mechanosynthesis of Diaminobiphenyls-Based Schiff’s Bases as Simple Probes for the Naked-Eye Detection of Cyanide Ion

Cyanide ions are known to be lethal for insects and mammals and harmful for the environment, and new methods for their selective detection are in high demand. Herein, the mechanosynthesis of simple Schiff’s bases-based probes S1–S3 for visual detection of CN− anion is reported. These probes were obt...

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Bibliographic Details
Published in:Chemistry an international journal 2023-04, Vol.5 (2), p.978-986
Main Authors: Al-Ithawi, Wahab K. A., Khasanov, Albert F., Kovalev, Igor S., Nikonov, Igor L., Kopchuk, Dmitry S., Platonov, Vadim A., Santra, Sougata, Zyryanov, Grigory V., Ranu, Brindaban C.
Format: Article
Language:English
Subjects:
Anions
Ball milling
Charge transfer
Chromatography
color change
cyanide ion detection
Cytochrome
Hydrogen
Insects
mechanosynthesis
Methods
Schiff bases
Seeds
Solvents
Stainless steel
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Summary:Cyanide ions are known to be lethal for insects and mammals and harmful for the environment, and new methods for their selective detection are in high demand. Herein, the mechanosynthesis of simple Schiff’s bases-based probes S1–S3 for visual detection of CN− anion is reported. These probes were obtained by means of a reaction between isomeric 4,4-, 3,3- and 2,2-diaminobiphenyls and 4-nitrobenzaldehyde under ball milling conditions. The probes showed high selectivity and sensitivity toward CN− anion via a dramatic “yellow-to-dark purple” color change with a detection limit of 26 × 103, 8.7 × 103 and 14 × 103 ppm for S1–S3, respectively. The proposed mechanism of the detection suggests the deprotonation of a proton from an imine moiety, followed by the formation of charge transfer complexes (CTC).
ISSN:2624-8549
2624-8549
DOI:10.3390/chemistry5020066