OOIR: Observatory of International Research

Papers

(The TQCC of Bulletin of the Chemical Society of Ethiopia is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-01-01 to 2026-01-01.)

Article	Citations
Synthesis of some novel dipeptides and their copper(II) complexes of (dibenzo [b, d] furan-2-ylsulfonyl) phenylalanine	68
Antioxidant constituents from the leaves of Piper crassipes Korth ex Miq. growing in Malaysia	64
Effect of surfactants (cetyl trimethyl ammonium-bromide, ethyl di-tetra amine and polyacrylamide) on the synthesis of zinc oxide for photocatalytic application	52
Anti-corrosive efficiency of aqueous extract of Cordia dichotoma L. plant leaves as inhibitor for corrosion of carbon steel immersed in hydrochloric acid solution	48
Analytical methods for the quantification of ritonavir in pharmaceuticals, a comparative evaluation	28
Exploring the biological activity of organotin carboxylate complexes with 4-sulfosalicylic acid	27
Formulation and quality evaluation of ready-to-drink coffee brew from date seed powder	24
Optimization of NaCl based spray corrosion test process parameters of heat treated hybrid metal matrix composites	22
Exploration of novel sulfoanhydride derivatives and their metal complexes: Design, characterization, and bioactivity evaluation in vitro and in silico study	18
Preparation, spectroscopic, cyclic voltammetry and DFT/TD-DFT studies on fluorescein charge transfer complex for photonic applications	15
Study on the engine characteristics (CI) of using pumpkin-maize-blended biodiesel mixed with additive (diethyl ether)	15
Microrods synthesized of MoO3 with corn straw as biological templates and its electrochemical performance in aqueous aluminum-ion battery	14
Lipoxygenase inhibitory activity of phytoconstituents isolated from the rhizomes of Boesenbergia albosanguinea (Ridl.) Loes.	13
Hirshfeld surface analysis and quantum chemical study of molecular structure of phosphate	13
Biosorption of Ni(II) ions from aqueous solutions using Melia azedarach biomass	12
Density functional theory study on the crystal structure of quercetin	12
Greenness assessment of continuous FIA-spectrophotometric method for quantitation of oxymetazoline in bulk and pharmaceutical forms	12
Polyaniline-coated activated carbon from Prosopis juliflora for hexavalent chromium removal in aqueous solutions	11
Synthesis and characterization of complexes formed by Fe(III), Cr(III), Co(II), Cu(II), Cd(II), and Ag(I) ions with the drug captopril and the amino acid glycine	11
Synthesis, characterization and bioactive evaluation of cobalt(II) and copper(II) complexes of {4-[5-(5-sulfanylidene-2,5-dihydro-1H-1,2,4-triazol-3-yl) furan-2-yl] phenyl} acetic acid	11
New Fe(III), Co(II), Ni(II), Cu(II), and Zn(II) mixed-ligand complexes: stractural, DFT, biological, and molecular docking studies	10
Optimizing synthesis: Schiff base derivatives produced via one-pot grinding method and their biological activity exploration	10
Analytical data of Acacia nilotica var. Nilotica gum	10
Efficient removal of methyl orange using magnesium oxide nanoparticles loaded onto activated carbon	10
Synthesis, characterization, antimicrobial, antioxidant activities, and in silico study of new azo disperse dyes containing pyrazole and pyrazolo[1,5-a]pyrimidine rings	10

Chemical composition of essential oil of Acacia crassicarpa Benth. (Fabaceae) from Vietnam	9
Structural analysis of Val-Trp dipeptide: Molecular mechanics and DFT calculations	9
Synthesis, characterization, and biological assessment of riboflavin-theobromine derivatives for pediatric traumatic infection applications	9
Chracterization of the complexation between indium(III) and zirocnium(IV) ions with the drug procaine: Spectral analysis, thermal properties, and microscopic imaging	9
Risk assessment of heavy metals and polycyclic aromatic hydrocarbons in ground water samples around the vicinity of an asphalt plant in north central, Nigeria	9
Theoretical study on glucose and methylamine Maillard reaction: formation of the Amadori rearrangement products	8
Antioxidant novel activities of curcumin complexes with Mg(II), Ca(II), Cu(II), Cr(III) and Se(IV) metal ions: synthesis and spectral studies	8
A stable electrochemical sensor for the detection of ascorbic acid based on Fe3O4/ZrO2 nano composite modified carbon paste electrode	8
Optimization of modified QuEChERS method for extraction of selected pharmaceuticals from vegetable samples using HPLC	8
Major and heavy metals contents and health risk assessment of pumpkin peel, flesh and seed by microwave plasma-atomic emission spectroscopy	8
Determination of organochlorine and organophosphorus pesticide residues in tomato, potato, and pineapple samples of selected farmlands in southwest Ethiopia	8
Synthesis, characterization, and biological evaluation of zinc(II) complexes with benzohydrazide derivative and phosphine ligands	8
Smartphones app as portable colorimetric sensor for low-cost quantification of safranin dye in aqueous solutions	8
Inorganic tin(IV) complexes as photo-stabilizer for PVC	8
Cerric ammonium nitrate catalyzed eco-friendly green synthesis of chitosan Schiff base using PEG-400 as an anticancer agent against gastric cancer cells via inhibiting EGFR	7
Spectroscopic, physicochemical characterizations and photonics applications on boron subphthalocyanine chloride as organic electronics	7
Evaluation of heavy metal accumulation in sediment, surface water and some plants in the Karasu Riparian Zone	7
Synthesis, spectral characterization and biological studies of Co(II) complexes with Schiff bases derived from sulpha drugs	7
Synthesis, characterisation and structural elucidation of novel 4-tert-butylbenzohydrazone and its Cu(II), Ni(II), Co(II) and Mn(II) complexes	7
Liquid-combustion synthesis of spinel LiMn2O4 cathode material for enhanced electrochemical performance lithium-ion batteries	7
Binuclear transition metal complexes containing 6 N moieties Schiff base ligand: Synthesis, characterization and microbicide activities	7
Chemical constituents of the leaves of Actinodaphne pruinosa	7
Synthesis, evaluation, and structural characterization of antioxidant diorganotin(IV) Complexes derived from ampicillin: a comprehensive study	6
The applications of nanocatalysts in the synthesis of heterocyclic compounds	6
Water-soluble total sugars and total free amino acids of the two varieties of teff [Eragrostic tef (Zuccagni) Trotter] cultivated in different regions of Ethiopia	6
Synthesis and biological evaluation of some hybrid 2-quinolinone derivatives containing cinnamic acid as anti-breast cancer drugs	6
Novel palladium(II) complex derived from mixed ligands of dithizone and triphenylphosphine synthesis, characterization, crystal structure, and DFT study	6
Study on effect of graphite electrode on accuracy of hole using electrochemical machining	6
Chemical quantitative and spectroscopic study of a new derivative of dapsone drug and some of its new complexes Zn(II), Cd(II) and Hg(II) as antibacterial agents	6
Manganese oxide-coffee husk and khat (Catha edulis) leftover biochar nanocomposites for removal of Cr(VI) from wastewater	6
Polyaniline/TiO2 nanocomposite for high performance supercapacitor	6
Investigation of the effect of some polar organic solvents on the leaching and dissolution kinetics of chalcopyrite in hydrogen peroxide and sulfuric acid solution	6
Optical and phytochemical detection of decayed food items using yeast mediated silver nanoparticle	6
Influence of heavy metal ions and storage time on hydroxymethylfurfural formation in honey collected from Ilu Woreda, Oromia Regional State, Ethiopia	6
Production rate of heterocyclic compounds iodinated N-(p-chlorophenyl)-3,5- dimethyl-1,1-dioxo-1,2-thiazine	6
Impact of graphene oxide integration with ZnO nanoparticles on its photocatalytic, antimicrobial, and antioxidant activities	5
Enhancing efficiency and thermal stability of amino benzotriazole fluorescent dye via ligand-to-metal charge transfer reactions for solar cell applications: A comprehensive compositional and spectros	5
Synthesis, characterization and spectroscopic study of nickel(II), palladium(II) and platinum(IV) complexes with mixed ligands of (Z)-N'-(furan-3- ylmethylene)isonicotinohydrazide-chloroanilic acid	5
Spectrophotometric approach to dual quantification of caffeine and paracetamol using H. Point addition	5
Fatty acid and essential oil compositions of seeds of coriander (Coriandrum sativum L.) Cultivated in different regions of Ethiopia	5
Malachite green adsorption from aqueous medium by chitosan assisted silver nanoparticles (AgNPs): Isotherm and thermodynamics studies	5
Synthesis, characterization, thermal properties, and biological evaluation of azo-transition metal complexes	5
Structural and optical characteristics of poly(vinyl alcohol)/carboxymethyl cellulose/ curcumin nanocomposites	5
Synthesis, spectral studies and antioxidant study of metal-coordinated azo-dye of pyridine and its analytical application for spectrophotometric micro-determination of copper(II)	5
Mixed ligands of (E)-1-(3-(((1H-1,2,4-triazol-3-yl)imino)methyl)-4-hydroxy-5- methoxyphenyl)ethan-1-one and chloroanilic acid: Synthesis, characterization and thermal stability study	5
An efficient ionic liquid-based cloud point extraction to preconcentrate mercury in environmental samples and hair of occupational workers before spectrophotometric detection	5
Investigation on silver-water nanofluid for development of new viscosity correlation	5
Uncovering benzoquinone derivatives for redox flow batteries: DFT insights on reduction potentials and solvent effects	5
New approaches for the synthesis of chromene and quinoline derivatives and their anti-proliferative, morphological studies	5
Polycyclic aromatic hydrocarbons in harvested rainwater in Warri and Agbarho, Nigeria	5

Secondary metabolites and essential oil analysis of Clematis simensis with antioxidant and antibacterial activities	5
Synthesis and characterization of ternary composite g-C3N4-WO3/rGO for photocatalytic activity in degradation of methylene blue	5
Synthesis, molecular docking, and evaluation in vitro antitumor activity of new pyrazole-hydrazone compounds	5
Preparation and physico-chemical properties of lanthanide(III) complexes with 2-((E)- (tert- butylimino)methyl)-6-methoxyphenol	5
Synthesis and characterization of a number of complexes of Pt(II), Pd(II), Cd(II) and Zn(II) with new ligands containing oxygen	5
Synthesis and efficiency of new pyridine, chromene and thiazole containing compounds as antimicrobial and antioxidant agents	5
Facile synthesis of ZnO/RGO/Fe2O3 using macroalgae Caulerpa taxifolia as green reductor and its application as malachite green removal	5
Unveiling the novel anti-corrosion and anti-bacterial biofilm forming characteristics of eco-safe MWCNT-AZ91E alloy for food-processing surfaces	4
Synthesis, spectoscopic, thermal, and mophological studies of metal-based complexes derived from the reaction of cinchonine with manganese(II), nickel(II), and zinc(II) ions	4
Synthesis, characterization, lipoxygenase, and tyrosinase inhibitory activities of non- cytotoxic titanium(III) and (IV) hydrazide complexes	4
Investigating the comparative adsorption of methyl orange and methyl green on commercial bentonite	4
Green synthesis of copper nanoparticles from Terminalia arjuna (L.) bark extract: Characterization and potential for mercury degradation	4
Experimental studies on a direct injection diesel engine fueled with hydrogen enriched garcinia gummi-gutta biodiesel	4
Design, synthesis, and cytotoxic activity of some novel N-(substituted) benzamide derivatives bearing coumarin and 1-azocoumarin compounds	4
Ascorbic acid content and the antioxidant activity of common fruits commercially available in Addis Ababa, Ethiopia	4
Boosted antibacterial efficacy: Di and triorganotin complexes via 2-[(2,3-dimethylphenyl)amino]benzoic acid	4
Experimental and theoretical analysis of an indirect solar dryer using asbestos material as a heat absorber plate	4
Synthesis, characterization and DFT studies of Schiff bases of p-methoxysalicylaldehyde	4
Comprehensive analysis of soybean seeds using headspace gas chromatography-mass spectrometry (HS-GC/MS) and optimization of soybean oil processing operations by carbon soybean hulls	4
Estimation of lumacaftor, ivacaftorin by using LC-MS method and their pharmacokinetic studies	4
Theoretical investigation of norfloxacin hybrid compounds with silver, copper, and gold metals as potential anticancer agents	4
Computational details of molecular structure, spectroscopic properties, DFT calculations and molecular docking study of some 1,4-disubstituted-1,2,3-triazole derivatives derived from 4-aminobenzen su	4
Effective removal of cytotoxic cyclophosphamide from aqueous solutions using novel adsorbent (hemp root)	4
Synthesis, properties and solvent sorption study of [Cu(Ter)(Ina)]·H2O coordination polymer	4
Preparation of nanocomposites for corrosion treatment	4
Preparation and chemical study on metallic bonding with antibiotics in nanometer form to raise the therapeutic efficiency: structural characterizations of Cu(II), Co(II) and Ni(II) 6-aminopenicillinic	4
Estimation of phase separation and thermodynamic parameters of Triton X-100 and chlorpheniramine maleate drug mixture: influence of lower chain alcohols	3
Synthesis, characterization, DFT, molecular docking, and in vitro screening of metal chelates incorporating Schiff base	3
Cytotoxicity of compounds isolated from Euphorbia abyssinica: A combined experimental and docking studies	3
Aqueous medium synthesis, characterization and evaluation of the antioxidant and antibacterial activities of new pyrimidine-and purine-ligated pyrrole	3
Geometry optimization and energy parameter calculations using density-functional theory method and molecular docking of anticonvulsant therapeutic metal complexes of gabapentin	3
Chemoselective metal free deallylation of α-allyl-phenyl-carboxylic esters under reduction condition	3
Split application of biochar for humic acids structural characteristics enhancement during chicken manure composting	3
Study of electrochemical behavior of two chemically similar acridines: Tacrine and 9-aminoacridine on hanging mercury drop electrode	3
Exploring the half-metallic behavior and spintronic potential of Cr-doped CaTe	3
Experimental-based assessment of physical, mechanical and chemical characteristics of ancient and new clay bricks of Babylon city: A comparative study	3
Enhance food security: Sustained release of clove essential oil microcapsules	3
Synthesizing, characterization of some metal ion complexes with new azo dye and studying antioxidant and anticancer (MCF-7)	3
Efficient adsorption of Rhodamine B using a composite of Fe3O4@zif-8: Synthesis, characterization, modeling analysis, statistical physics and mechanism of interaction	3
Investigation of adsorption of Basic Orange 2 dye on montmorillonite and error analysis	3
Primary GC-MS chemical analysis of alcoholic extract of Emex spinosa (L.) Campd. and screening of their antioxidant, antibacterial, and cytotoxic characteristics	3
Preparation and characterization of ionic liquids derived from imidazole with some transition elements and study of their thermal stability and thermodynamic parameters	3
Synthesis, characterization, density functional theory (DFT) analysis, and mesomorphic study of new thiazole derivatives	3
Photocatalytic oxidation of butan-2-ol over multi walled carbon nanotubes/cobalt phthalocynanine composites	3
Preparation of TiO2-activated kaolinite composite for photocatalytic degradation of rhodamine B dye	3
Quantification of phenolic compounds in dietary supplements and antioxidant activities	3
Synthesis, molecular docking study and antibacterial activity of new pyrazoline derivatives	3
Silver nanoparticle-modified graphite pencil electrode for sensitive electrochemical detection of chloride ions in pharmaceutical formulations	3
Paper microfluidic device and spectrophotometry methods for colorimetric detection of phenylephrine hydrochloride in pure and pharmaceutical preparations	3
Kinetics, isotherms and thermodynamics study of eosin yellow dye adsorption from aqueous solutions by MnO2@rGO nanocomposite	3
Synthesis of some new thiophene-based compounds and evaluations of their cytotoxic activities	3
The magnetic characteristics and electronic configuration of GAN compound modified by individual impurities (Fe and Ni)	3
Synthesis and characterization of graphene oxide-zinc oxide nanocomposite thin films: Enhanced photocatalytic and electrochemical properties	3
Synthesis and spectroscopic characterizations of manganese(II), iron(III), copper(II) and zinc(II) hydrazine complexes as catalytic activity agents	3
Algerian wild green carob (Ceratonia siliqua L.): Physicochemical characteristics and antioxidant potency	3
Theoretical study on the molecular and crystal structures of myricetin	3
Effervescent-assisted deep eutectic solvent-based dispersive liquid-liquid microextraction of Cr(VI) in aqueous samples	3
Capturing Mn(II), Zn(II), and Cd(II) ions using gallic acid: Synthesis, spectroscopic analysis, thermal stability, and microscopic imaging	3
Selective solvent extraction followed by solid-phase clean-up for quantitative enrichment of trace level multiclass pesticide residues in the honey samples for GC-ECD determination	3
Reversed-phase liquid chromatography to estimate the effectiveness of paracetamol, ascorbic acid in pharmaceutical preparation	3
Isatin/thiosemicarbohydrazone hybrids: Facile synthesis, and their evaluation as anti-proliferatıve agents and metabolıc enzyme inhibitors	3
Assessment of the eco-friendliness profiles of spectrophotometric methods for the quantification of vonoprazan fumarate in pharmaceutical formulations utilizing N-bromosuccinimide	3
Synthesis, characterization, and computational analysis of chromium trioxide and amino acid-derived metal complexes	3
Chemical composition, antibacterial and antioxidant activities of essential oils from Ccyphostemma adenocaule and Ziziphus spinachristi	3
Extraction and preconcentration of many metals ions by using CPE technique	3
Design, synthesis of novel Schiff bases as potential insecticidal agents against Spodoptera frugiperda (Lepidoptera: Noctuidae)	3
Preparation of flower-like hierarchical structure SnO2/g-C3N4 and its ethanol gas-sensitive properties	3
Synthesis and structural studies on zinc(II) macrocyclic and hetrocyclic complexes derived from schiff base and mixed ligands of 1,4-dihydroquinoxaline-2,3-dione, orthophenylene diamine and hydroquino	3
Preparation and characterization of a mixed catalyst of cobalt and molybdenum carried on aluminum oxide prepared from bentonite ore	3
Investigation on the effects of hydrogen addition with watermelon seed oil biodiesel in a CI engine operated with different compression ratio: An analysis of combustion, performance and emission pro	3
Effect of HVOF parameter on titanium oxide (TiO2) coating characteristics on AZ81 magnesium alloy	3
New iron(III), cobalt(II), nickel(II), copper(II), zinc(II) mixed-ligand complexes: Synthesis, structural, DFT, molecular docking and antimicrobial analysis	3
Synthesis, characterization, biological activity, DFT and Hirshfeld surface studies of Pd(II) and Pt(II)-1-cyclohexyl-3-phenylthiourea and amine ligands	3
Synthesis, characterization, thermal analysis and antioxidant determination for some metal ions complexes with new ligand	3
Corrosion properties of tempered medium carbon steel in 1.0 M HCl and homemade vinegar	3
Design and cytotoxic activity of thiazolidinones via one-pot, three component reaction under microwave and traditional method	3