An organometallic azomethine ferrocenyl ligand (FCAP) and its transition metal complexes ([M (FCAP)2], where M = VO2+, Mn2+ cations, and [M (FCAP) (CH3COO− or NO3−)], where M = Zn2+ and Pd2+ cations) were prepared. Their structures were confirmed via various spectral and physicochemical studies performed. The crystallinity of the investigated metal chelates was confirmed by X‐ray diffraction data. The spectral data of the FCAP azomethine ligand and its metal chelates were explained concerning the structural changes due to complex formation. From the electronic spectra and the magnetic moments, the information about geometric structures can be concluded. The activation thermodynamic parameters of the thermal degradation for FCAP complexes were calculated utilizing the method of Coats–Redfern. in vitro antimicrobial, anticancer, and antioxidant activities of FCAP azomethine ligand and its complexes were screened. All the investigated metal chelates exhibited superiority on the free FCAP ligand in successful treatment. Moreover, the binding nature of the investigated complexes with calf thymus DNA (ctDNA) was examined by various methods such as spectrophotometry, viscosity, and, gel electrophoresis. Their binding feature to ctDNA was proposed to be electrostatic, intercalation, or replacement mode. Furthermore, molecular docking inspection has been conducted to clarify the nature of the binding and binding affinity of protein synthesized compounds (PDB:3hb5).

Some new transition metal chelates ([M(FSH)2] and [M(FSH) (CH3COO− or NO3−)], where M = Pd2+, VO2+, Mn2+, Zn2+, and cations) incorporating ferrocenyl thiophenol imine ligand (FSH) were prepared. Various spectral and physicochemical studies were performed to elucidate the geometric structure of the investigated compounds. The spectral data of FSH imine ligand and its metal chelates were explained concerning the structural changes due to complex formation. From the electronic spectra and the magnetic moments, the information about geometric structures can be concluded. The activation thermodynamic parameters of the thermal degradation for FSH complexes were calculated utilizing the method of Coats–Redfern. Correlation of all physicochemical tools employed in the investigation and DFT calculation, FSH imine ligand acts as a bidentate ligand and coordinates to Mn2+ in octahedral geometry, VO2+ in square pyramidal geometry, Pd2+ in square planner geometry and Zn2+ in distorted octahedral geometry. in vitro antimicrobial, anticancer and antioxidant activities of FSH ligand and its complexes were checked. All complexes exhibited superiority on the free ligand in successful treatment, specifically the FSHPd complex. The new complexes were subjected to study their DNA binding via various methods such as spectrophotometry, viscosity and gel electrophoresis. Their binding feature to ctDNA was proposed to be electrostatic, intercalation or replacement mode. Finally, the molecular docking studies were performed to understand the essence of the protein synthesized compounds' binding and binding affinity (PDB:3hb5).

in Wiley Online Library (wileyonlinelibrary.com).Here, we reported two methods for the synthesis of multi-substituted imidazoles, firstly via fourcomponent cyclocondensation reaction of benzil, aliphatic amines (allylamine or pentylamine), and aromatic aldehyde and ammonium acetate. Using an ionic liquid catalyst namely, diethyl ammonium hydrogen sulfate, and under solvent-free conditions. Secondly, via the alkylation of synthesized NH imidazoles with alkyl halide (allyl bromide and pentyl bromide) gave 8a-c in high yield (average 90%), the products can be purified by a non-chromatographic method, and these newly synthesized compounds have been characterized by spectral data: FTIR, IR, 1 H, 13 C nuclear magnetic resonance, the elemental analysis, and the X-ray structure.

Powdered nanolimestone (NLS) and limestone (LS) have been investigated as an adsorbent for the removal of cobalt from aqueous solutions. Batch experiments were carried out to investigate the effect of pH. The favorable pH for maximum cobalt adsorption was 6.8. The surface area increased in the case of NLS up to 6.2 m2/g, while it was equal to 0.5 m2/g in the case of LS. The adsorption capacity calculated by the Langmuir equation was 17.1 mg/g for LS and 60.0 mg/g for NLS at pH 6.8. The adsorption capacity increased with temperature and the kinetics followed a first-order rate equation. The enthalpy change (ΔHo) was 20.8 Jmol−1 for LS and 41.6 Jmol−1 for NLS, while entropy change (ΔSo) was 33.3 JK−1 mol−1 for LS and 74.8 JK−1 mol−1 for NLS, which substantiates the endothermic and spontaneous nature of the cobalt adsorption process. All of the results suggested that the NLS is very strong and could be an excellent nano-adsorbent for cobalt contaminated water treatment more than limestone.