Dual emissive dinuclear Iridium(III) azomethine complexes: Synthesis, luminescence, thermal stability and antibacterial studies

Aqua-friendly organometallic Ir–Pt complexes: pH-responsive AIPE-guided imaging of bacterial cells

“…The planarity of the square-planar Pt( ii )-terpyridine system enhances the aggregation of the mononuclear system. The quantum yield (solution) of mononuclear complexes is similar to previous literature reports 17 and higher than dinuclear complexes. This may be due to their ligand-based origin.…”

A review of current trends of antibacterial Schiff base complexes: Lower and higher transition metal complexes

“…While DNA-binding studies showed that complex 4 and complex 5 exhibited remarkable mutations in their spectral properties with the inclusion of SM-DNA, specifying complexes to be bound to DNA with substantial affinity. Sarwar et al (2021) synthesised binuclear Ir(III) azomethine complexes derived from 4,4-diaminodiphenyl sulphide spacer and aldehydes bearing a variety of functional groups (OH, NO2, Cl) (Figure 18). The compounds were screened against Gram-negative and Gram-positive bacteria, namely E. coli, Salmonella typhi, P. aeruginosa, E. faecalis, Streptococcus mutant and S. aureus for their bactericidal activities, which possessed mild to moderate antibacterial properties.…”

“…IrHL 1 antibacterial was lower than the parent Schiff base ligand. (Sarwar et al, 2021) as in a set of tetranuclear complexes (Majumdar et al, 2019;Liu et al, 2020). The structure of the ligands and coordination sites also play significant roles in antimicrobial activities, where similar metal ions with different ligands bearing different coordination sites had displayed different bioactivities in various Ru(III), Rh(III) and Ir(III) complexes (Lapasam et al, 2019a;2019b;Kollipara et al, 2020).…”

“…Recognition of Schiff base complexes and several other metal complexes as bioactive compounds led to accelerated development in coordination and bioinorganic chemistry. Comprehensive research works have been instigated on the synthesis as well as practical and effective bio-utilisation of these compounds (Chohan and Jaffery, 2000;Jayabalakrishnan and Natarajan, 2001;Yu et al, 2009;Naureen et al, 2021a;2021b;Sarwar et al, 2021).…”

“…The dinitrogen dioxygen (N2O2) type of ligands as obtained by the condensation reactions of a diamine with various aldehydes and ketones, could easily coordinate with one or several metal centres depending on the binding sites available for complexation. Schiff bases and their complexes have numerous applications in different fields, such as antibacterial, antiviral, anticancerous, anti-inflammatory, antioxidant, luminescent and sensor materials (Kondo et al, 2007;Kumari et al, 2008;Yamada et al, 2015;Sarwar et al, 2020;2021;2022a;2022b;2023).…”