An effective ‘Turn – off’ photoluminescence chemo sensors for the selective detection of fenitrothion using single crystalline Cu (II) / Ni (II) complexes

• Published in: Inorganic chemistry communications 2024-06, Vol.164, p.112432, Article 112432
• Main Authors: Shanjitha, Shanmugasundaram, Suvarnna, Kumaresan, Jone Kirubavathy, Suyambulingam
• Format: Article
• Language: English
• Subjects: Fenitrothion; Job’s plot; Luminescent complex; Organophosphate sensor; SV plot
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2024.112432

Two luminescent mixed ligand Cu (II) and Ni (II) complexes have been employed for the purpose of organophosphate detection. An effective quenching mechanism displayed by complexes revealed their potency to perform as a turn-off” sensor towards fenitrothion detection. Further, the performance on interference and concentration based studies were explored to establish the applicability of sensor in real environment. Also, SV and Job’s plot were constructed to estimate the detection limit, quenching efficacy and the stoichiometric binding between sensor and analyte. [Display omitted] •Two novel luminescent Cu(II) and Ni(II) complexes have been investigated for their potency to perform as chemo sensors towards organophosphates.•The practical applicability of sensors was ensured by interference and concentration based studies.•From SV and Job’s plot, the detection limit binding between analyte and probe were estimated.•Also, the phenomenon of static quenching mechanism observed during sensing process is also elucidated using SV plot.•Therefore, a favourable approach in designing a selective and sensitive ‘Turn-off’ sensors towards fenitrothion detection is presented.•ABSTARCT.