Synthesis, crystal structures, and superoxide dismutase activity of two new multinuclear manganese(III)-salen-4,4′-bipyridine complexes

Evaluation of phytochemical and superoxide dismutase activities of Enhalus acoroides (L.f.) Royle from coastal waters of North Sulawesi, Indonesia

“…Screening for secondary metabolites such as alkaloids, terpenoids, and flavonoids was performed using methanol, n-hexane, ethyl acetate, and water extracts of vegetables and fruits as described previously [25,26].…”

“…The chemical constituent profile of the extract and pure active compounds of the seagrass E. acoroides (L.f.) Royle cultivated in different areas was analyzed using a combination of TLC on Silica 60 G F254 and ODS RP-18 plates eluted with a combination of organic solvent and H 2 O. Chemical compounds on plates were identified and observed under ultraviolet (UV) lamps at 254 and 365 nm and through the reaction to the specific spraying reagent of H 2 SO 4 in 10% EtOH [25,26].…”

An insight into molecular structures, fluorescent, and catalytic oxidase properties of novel heteromultinuclear [CuII4SmIII2] and [CuII2TbIII] bis (salamo)‐based complexes

“…Salen and its derivatives (CHN[CH] n NCH) are used in various fields due to their excellent properties and interesting structures. Some complexes can be applied to molecular recognitions, [ 1–5 ] catalysts, [ 6–8 ] supramolecular architectures, [ 9–14 ] magnetic materials, [ 15 ] and fluorescence materials. [ 16–19 ] Salen‐based compounds have been improved, two salicylaldehyde molecules ligated with an alkoxyl bridging unit as a linker form a new structural configuration (CHNO[CH] n ONCH) of salamo‐based ligand.…”

Three rare heteromultinuclear 3d‐4f salamo‐like complexes constructed from auxiliary ligand 4,4′‐bipy: Syntheses, structural characterizations, fluorescence and antimicobial properties

“…Compared with the tetradentate salamo‐like ligands, the hexadentate salamo‐like ligands add two coordination oxygen atoms to form an internal N 2 O 2 coordination site and an external O 2 O 2 coordination site, and the transition metal ion is easily coordinated to the internal N 2 O 2 coordination site, while the rare earth metal ion tends to match the O 2 O 2 coordination site to the outside is formed a stable 3d–4f heteromultinuclear complexes. Some complexes can be applied to molecular recognitions, catalysts, supramolecular architectures, electrochemical fields and antioxidations . The addition of ancillary ligands plays a crucial role in the construction of multinuclear or multidimensional complexes, typically by self‐assembly of synthetic simple metal complexes with bridging ligands containing nitrogen or oxygen donors to give multinuclear complexes or polymers.…”