Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(6)
Опубликована: Май 8, 2025
ABSTRACT In the current study, new ( E )‐ N′ ‐(2‐hydroxy‐5‐nitrobenzylidene)morpholine‐4‐carbothiohydrazide H 2 L ) ligand and its [Co(HL) ] 1 [Ni(HL)Cl]·1.5H O complexes have been produced analyzed using analytical spectral tools as elemental microanalyses, conductivity measurements, H‐ 13 C‐NMR, FT‐IR, UV–vis, XRD, SEM, thermogravimetric differential (TG‐DTG) analyses. The FT‐IR vibrational data indicated that loses phenolic proton acts a monobasic ONS tridentate anion in both of complexes. UV–vis well magnetic data, proposed Co 2+ complex has octahedral geometry, whereas Ni exists tetrahedral shape. Powder XRD patterns for investigated compounds show tetra‐coordinated crystalline nature with crystallite sizes 96.68 170.29 nm, respectively, whereas, hexa‐coordinated is amorphous. Furthermore, thermal pyrolysis organic metal chelates were presented. Also, Coats–Redfern Horowitz–Metzger models employed to estimate activation thermodynamic parameters different pyrolytic stages two efficacy cobalt nickel inhibitors corrosion carbon steel 0.5 M SO 4 solutions was examined through electrochemical (PDP EIS) theoretical (MC simulations DFT) information gathered from PDP analysis demonstrated function mixed‐type inhibitors. Additionally, findings EIS studies confirm development protective coating over steel, thereby offering shield against corrosion. conclusions corroborate effectiveness
Язык: Английский