Research Article

A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol

Volume: 2026 Number: 2 August 31, 2026

A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol

Abstract

In this study, a Schiff base-derived Pd(II) complex (L–Pd) was successfully synthesized and investigated as a fluorescent sensor for the detection of 2,4,6-trinitrophenol (TNP), a highly hazardous nitroaromatic explosive pollutant. Fluorescence studies demonstrated that the L–Pd complex exhibits strong emission properties and functions as an effective fluorescent probe for the sensitive detection of TNP through a fluorescence quenching mechanism in an ACN/H2O (2:3, v/v) medium. The complex displayed excellent sensing performance toward TNP, characterized by a high Stern–Volmer quenching constant (KSV = 20.7 × 103 M-1) and an exceptionally low limit of detection (LOD = 0.246 μM), highlighting its remarkable sensitivity. Furthermore, fluorescence titration experiments and Job’s plot analysis indicated a 2:1 complexation stoichiometry between L–Pd and TNP, indicating that two L–Pd molecules interact with a single TNP molecule during the recognition process. These results provide valuable insights into the sensing mechanism and molecular interactions responsible for the selective and sensitive determination of TNP. In conclusion, the present work introduces a high-performance Pd(II)-based fluorescent sensor for TNP detection and contributes to the development of advanced sensing materials for nitroaromatic explosives. Owing to its excellent sensitivity and selectivity, the developed sensing system holds considerable promise for applications in environmental monitoring, explosive detection, public safety, human health protection, and defense-related technologies.

Keywords

Supporting Institution

Gebze Technical University

Ethical Statement

This study does not involve any human participants or animals, and therefore ethical approval is not required.

Thanks

The author gratefully acknowledges the Department of Chemistry, Gebze Technical University, for providing access to laboratory facilities and instrumental support.

References

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Details

Primary Language

English

Subjects

Photochemistry, Organometallic Chemistry

Journal Section

Research Article

Publication Date

August 31, 2026

Submission Date

July 10, 2026

Acceptance Date

August 1, 2026

Published in Issue

Year 2026 Volume: 2026 Number: 2

APA
Altun, A. (2026). A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol. Journal of the Turkish Chemical Society Section A: Chemistry, 2026(2), 1-8. https://doi.org/10.18596/jotcsa.1991748
AMA
1.Altun A. A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol. JOTCSA. 2026;2026(2):1-8. doi:10.18596/jotcsa.1991748
Chicago
Altun, Ayhan. 2026. “A Transition Metal Schiff Base Coordination Compound As a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol”. Journal of the Turkish Chemical Society Section A: Chemistry 2026 (2): 1-8. https://doi.org/10.18596/jotcsa.1991748.
EndNote
Altun A (August 1, 2026) A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol. Journal of the Turkish Chemical Society Section A: Chemistry 2026 2 1–8.
IEEE
[1]A. Altun, “A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol”, JOTCSA, vol. 2026, no. 2, pp. 1–8, Aug. 2026, doi: 10.18596/jotcsa.1991748.
ISNAD
Altun, Ayhan. “A Transition Metal Schiff Base Coordination Compound As a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol”. Journal of the Turkish Chemical Society Section A: Chemistry 2026/2 (August 1, 2026): 1-8. https://doi.org/10.18596/jotcsa.1991748.
JAMA
1.Altun A. A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol. JOTCSA. 2026;2026:1–8.
MLA
Altun, Ayhan. “A Transition Metal Schiff Base Coordination Compound As a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol”. Journal of the Turkish Chemical Society Section A: Chemistry, vol. 2026, no. 2, Aug. 2026, pp. 1-8, doi:10.18596/jotcsa.1991748.
Vancouver
1.Ayhan Altun. A Transition Metal Schiff Base Coordination Compound as a Chemosensor for Sensitive Detection of 2,4,6-Trinitrophenol. JOTCSA. 2026 Aug. 1;2026(2):1-8. doi:10.18596/jotcsa.1991748