Photophysical and Antimicrobial Studies of Ni (II) Salen Complex
S.R. Khandekara, S.R. Kelodeb
aDepartment of Chemistry, Indira Mahavidyalaya, Kalamb, Dist. Yavatmal.
bDepartment of Chemistry, Arts, Commerce and Science College, Maregaon, Dist. Yavatmal.
Abstract
In this study, a novel Ni(II)–salen complex (Ni–SBL1) was synthesized and comprehensively characterized to explore its structural, photophysical and antimicrobial properties. The crystalline nature of the complex was confirmed by X-ray diffraction (XRD), while surface morphology studies using FE-SEM revealed randomly shaped, petal-like structures with small sizes. UV–Vis analysis confirmed effective metal–ligand interactions through d–π* transitions. Photoluminescence studies exhibited dual emission peaks at 544 nm and 601 nm upon excitation at 225 nm, highlighting the complex’s notable luminescent behavior. Biological evaluation demonstrated moderate antibacterial activity against Bacillus subtilis and antifungal activity against Aspergillus niger, with inhibition zones of 7–8 mm over the tested concentrations. The combination of well-defined structural features, photophysical properties and antimicrobial activity indicates that Ni–SBL1 is a promising candidate for multifunctional applications in material science and biomedical fields.
Keywords: Photophysical Study; Antimicrobial Study; Schiff Base; Ni(II) Salen
DOI link – https://doi.org/10.69758/GIMRJ/2512I10VXIIIP0004
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