OOIR: Observatory of International Research

Papers

(The TQCC of Bulletin of the Chemical Society of Ethiopia is 2. 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 2021-06-01 to 2025-06-01.)

Article	Citations
Hirshfeld surface analysis and quantum chemical study of molecular structure of phosphate	62
Synthesis of some novel dipeptides and their copper(II) complexes of (dibenzo [b, d] furan-2-ylsulfonyl) phenylalanine	55
Effect of surfactants (cetyl trimethyl ammonium-bromide, ethyl di-tetra amine and polyacrylamide) on the synthesis of zinc oxide for photocatalytic application	43
Optimization of NaCl based spray corrosion test process parameters of heat treated hybrid metal matrix composites	29
Biosorption of Ni(II) ions from aqueous solutions using Melia azedarach biomass	24
Study on the engine characteristics (CI) of using pumpkin-maize-blended biodiesel mixed with additive (diethyl ether)	24
Analytical methods for the quantification of ritonavir in pharmaceuticals, a comparative evaluation	21
Antioxidant constituents from the leaves of Piper crassipes Korth ex Miq. growing in Malaysia	16
Formulation and quality evaluation of ready-to-drink coffee brew from date seed powder	13
Preparation, spectroscopic, cyclic voltammetry and DFT/TD-DFT studies on fluorescein charge transfer complex for photonic applications	12
Exploring the biological activity of organotin carboxylate complexes with 4-sulfosalicylic acid	12
Density functional theory study on the crystal structure of quercetin	11
Microrods synthesized of MoO3 with corn straw as biological templates and its electrochemical performance in aqueous aluminum-ion battery	11
Efficient removal of methyl orange using magnesium oxide nanoparticles loaded onto activated carbon	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	10
Greenness assessment of continuous FIA-spectrophotometric method for quantitation of oxymetazoline in bulk and pharmaceutical forms	10
Theoretical study on glucose and methylamine Maillard reaction: formation of the Amadori rearrangement products	9
New Fe(III), Co(II), Ni(II), Cu(II), and Zn(II) mixed-ligand complexes: stractural, DFT, biological, and molecular docking studies	9
Structural analysis of Val-Trp dipeptide: Molecular mechanics and DFT calculations	8
Risk assessment of heavy metals and polycyclic aromatic hydrocarbons in ground water samples around the vicinity of an asphalt plant in north central, Nigeria	8
Inorganic tin(IV) complexes as photo-stabilizer for PVC	8
Analytical data of Acacia nilotica var. Nilotica gum	8
Major and heavy metals contents and health risk assessment of pumpkin peel, flesh and seed by microwave plasma-atomic emission spectroscopy	8
Synthesis, characterization, and biological evaluation of zinc(II) complexes with benzohydrazide derivative and phosphine ligands	8
Synthesis, characterization, antimicrobial, antioxidant activities, and in silico study of new azo disperse dyes containing pyrazole and pyrazolo[1,5-a]pyrimidine rings	8

Binuclear transition metal complexes containing 6 N moieties Schiff base ligand: Synthesis, characterization and microbicide activities	7
Smartphones app as portable colorimetric sensor for low-cost quantification of safranin dye in aqueous solutions	7
Optimization of modified QuEChERS method for extraction of selected pharmaceuticals from vegetable samples using HPLC	7
Synthesis, evaluation, and structural characterization of antioxidant diorganotin(IV) Complexes derived from ampicillin: a comprehensive study	7
A stable electrochemical sensor for the detection of ascorbic acid based on Fe3O4/ZrO2 nano composite modified carbon paste electrode	7
Determination of organochlorine and organophosphorus pesticide residues in tomato, potato, and pineapple samples of selected farmlands in southwest Ethiopia	7
Removal of mercury(II) by tri n-butyl phosphate based supported liquid membrane	7
Antioxidant novel activities of curcumin complexes with Mg(II), Ca(II), Cu(II), Cr(III) and Se(IV) metal ions: synthesis and spectral studies	7
Synthesis, characterisation and structural elucidation of novel 4-tert-butylbenzohydrazone and its Cu(II), Ni(II), Co(II) and Mn(II) complexes	6
Liquid-combustion synthesis of spinel LiMn2O4 cathode material for enhanced electrochemical performance lithium-ion batteries	6
Optical and phytochemical detection of decayed food items using yeast mediated silver nanoparticle	6
Spectroscopic, physicochemical characterizations and photonics applications on boron subphthalocyanine chloride as organic electronics	6
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	6
Study on effect of graphite electrode on accuracy of hole using electrochemical machining	6
Influence of heavy metal ions and storage time on hydroxymethylfurfural formation in honey collected from Ilu Woreda, Oromia Regional State, Ethiopia	6
The applications of nanocatalysts in the synthesis of heterocyclic compounds	6
Polyaniline/TiO2 nanocomposite for high performance supercapacitor	6
Novel palladium(II) complex derived from mixed ligands of dithizone and triphenylphosphine synthesis, characterization, crystal structure, and DFT study	5
Manganese oxide-coffee husk and khat (Catha edulis) leftover biochar nanocomposites for removal of Cr(VI) from wastewater	5
Polycyclic aromatic hydrocarbons in harvested rainwater in Warri and Agbarho, Nigeria	5
New approaches for the synthesis of chromene and quinoline derivatives and their anti-proliferative, morphological studies	5
Evaluation of heavy metal accumulation in sediment, surface water and some plants in the Karasu Riparian Zone	5
Chemical constituents of the leaves of Actinodaphne pruinosa	5
Synthesis and biological evaluation of some hybrid 2-quinolinone derivatives containing cinnamic acid as anti-breast cancer drugs	5
Secondary metabolites and essential oil analysis of Clematis simensis with antioxidant and antibacterial activities	5
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	5
Investigation of the effect of some polar organic solvents on the leaching and dissolution kinetics of chalcopyrite in hydrogen peroxide and sulfuric acid solution	5
Production rate of heterocyclic compounds iodinated N-(p-chlorophenyl)-3,5- dimethyl-1,1-dioxo-1,2-thiazine	5
Solvent free synthesis of hydrazine carbothioamide derivatives as a precursor in the preparation of new mononuclear Mn(II), Cu(II), and Zn(II) complexes: Spectroscopic characterizations	5
Investigation on silver-water nanofluid for development of new viscosity correlation	4
Synthesis and efficiency of new pyridine, chromene and thiazole containing compounds as antimicrobial and antioxidant agents	4
Facile synthesis of ZnO/RGO/Fe2O3 using macroalgae Caulerpa taxifolia as green reductor and its application as malachite green removal	4
Fatty acid and essential oil compositions of seeds of coriander (Coriandrum sativum L.) Cultivated in different regions of Ethiopia	4
An efficient ionic liquid-based cloud point extraction to preconcentrate mercury in environmental samples and hair of occupational workers before spectrophotometric detection	4
Preparation of nanocomposites for corrosion treatment	4
Synthesis, structural characterization and nematicidal studies of some new N2O2 Schiff base metal complexes	4
Structural and optical characteristics of poly(vinyl alcohol)/carboxymethyl cellulose/ curcumin nanocomposites	4
Impact of graphene oxide integration with ZnO nanoparticles on its photocatalytic, antimicrobial, and antioxidant activities	4
Synthesis and characterization of ternary composite g-C3N4-WO3/rGO for photocatalytic activity in degradation of methylene blue	4
Malachite green adsorption from aqueous medium by chitosan assisted silver nanoparticles (AgNPs): Isotherm and thermodynamics studies	4
Synthesis and characterization of a number of complexes of Pt(II), Pd(II), Cd(II) and Zn(II) with new ligands containing oxygen	4
Uncovering benzoquinone derivatives for redox flow batteries: DFT insights on reduction potentials and solvent effects	4
Synthesis, spectral studies and antioxidant study of metal-coordinated azo-dye of pyridine and its analytical application for spectrophotometric micro-determination of copper(II)	4
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	4
Unveiling the novel anti-corrosion and anti-bacterial biofilm forming characteristics of eco-safe MWCNT-AZ91E alloy for food-processing surfaces	3
Corrosion properties of tempered medium carbon steel in 1.0 M HCl and homemade vinegar	3
Study of electrochemical behavior of two chemically similar acridines: Tacrine and 9-aminoacridine on hanging mercury drop electrode	3
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	3
Effect of HVOF parameter on titanium oxide (TiO2) coating characteristics on AZ81 magnesium alloy	3
Synthesis, characterization and DFT studies of Schiff bases of p-methoxysalicylaldehyde	3

Theoretical study on the molecular and crystal structures of myricetin	3
Synthesis of some new thiophene-based compounds and evaluations of their cytotoxic activities	3
Investigation of adsorption of Basic Orange 2 dye on montmorillonite and error analysis	3
Design, synthesis, and cytotoxic activity of some novel N-(substituted) benzamide derivatives bearing coumarin and 1-azocoumarin compounds	3
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	3
Green synthesis of copper nanoparticles from Terminalia arjuna (L.) bark extract: Characterization and potential for mercury degradation	3
Synthesis, characterization, lipoxygenase, and tyrosinase inhibitory activities of non- cytotoxic titanium(III) and (IV) hydrazide complexes	3
Schiff bases derived from 4-amino-N-substituted benzenesulfonamide: synthesis, spectral characterisation and MIC evaluation	3
Ascorbic acid content and the antioxidant activity of common fruits commercially available in Addis Ababa, Ethiopia	3
Synthesizing, characterization of some metal ion complexes with new azo dye and studying antioxidant and anticancer (MCF-7)	3
Investigating the comparative adsorption of methyl orange and methyl green on commercial bentonite	3
Preparation of flower-like hierarchical structure SnO2/g-C3N4 and its ethanol gas-sensitive properties	3
Geometry optimization and energy parameter calculations using density-functional theory method and molecular docking of anticonvulsant therapeutic metal complexes of gabapentin	3
Synthesis and spectroscopic characterizations of manganese(II), iron(III), copper(II) and zinc(II) hydrazine complexes as catalytic activity agents	3
Theoretical investigation of norfloxacin hybrid compounds with silver, copper, and gold metals as potential anticancer agents	3
Quantification of phenolic compounds in dietary supplements and antioxidant activities	3
Photocatalytic oxidation of butan-2-ol over multi walled carbon nanotubes/cobalt phthalocynanine composites	3
Boosted antibacterial efficacy: Di and triorganotin complexes via 2-[(2,3-dimethylphenyl)amino]benzoic acid	3
Synthesis, characterization, and computational analysis of chromium trioxide and amino acid-derived metal complexes	3
Preparation and physico-chemical properties of lanthanide(III) complexes with 2-((E)- (tert- butylimino)methyl)-6-methoxyphenol	3
Primary GC-MS chemical analysis of alcoholic extract of Emex spinosa (L.) Campd. and screening of their antioxidant, antibacterial, and cytotoxic characteristics	3
Synthesis, characterization, DFT, molecular docking, and in vitro screening of metal chelates incorporating Schiff base	3
Synthesis, characterization, biological activity, DFT and Hirshfeld surface studies of Pd(II) and Pt(II)-1-cyclohexyl-3-phenylthiourea and amine ligands	3
Efficient adsorption of Rhodamine B using a composite of Fe3O4@zif-8: Synthesis, characterization, modeling analysis, statistical physics and mechanism of interaction	2
Volatile components of Dillenia reticulata King (Dilleniaceae) essential oil and their cytotoxicity	2
Preparation and characterization of a mixed catalyst of cobalt and molybdenum carried on aluminum oxide prepared from bentonite ore	2
Synthesis, characterization, density functional theory (DFT) analysis, and mesomorphic study of new thiazole derivatives	2
Synthesis, spectroscopic and biological characterizations of platinum(IV), ruthenium(III) and iridium(III) theophylline complexes	2
Synthesis and characterization of a new azo quinoline ligand and its metal complexes with spectrophotometric determination and biological efficacy study of its Hg(II) complex	2
Synthesis, characterization, theoretical study and biological evaluation of Schiff base and their La(III), Ce(IV) and UO2(II) complexes	2
Antioxidant properties of triphenyltin(IV) complexes derived from a novel ibuprofen-5-aminosalicylic acid ligand: synthesis and characterization	2
New (2Z)-1-(2,4-dinitrophenyl)-2-[(2E)-3-(2-nitrophenyl)prop-2-en-1-ylidene]hydrazine and its V(II) and Ni(II) complexes: synthesis, characterization and in silico sars-CoV-2 inhibition studies	2
Peroxidase-like activity of hemoglobin-based hybrid materials against different substrates and their enhanced application for H2O2 detection	2
Enhance food security: Sustained release of clove essential oil microcapsules	2
Preparation of voltammetric sensors for taurine detection from Cu(II)-loaded carbon materials	2
Exploring the half-metallic behavior and spintronic potential of Cr-doped CaTe	2
Biogenic synthesis of silver nanoparticles using essential oil of aerial part of cyclospermum leptophyllum and their application in colorimetric determination of metallic ions	2
Algerian wild green carob (Ceratonia siliqua L.): Physicochemical characteristics and antioxidant potency	2
Isatin/thiosemicarbohydrazone hybrids: Facile synthesis, and their evaluation as anti-proliferatıve agents and metabolıc enzyme inhibitors	2
Investigation on sulfur substituted cadmium ions with superhydrophobic nature and long-term anticorrosion performance	2
Preparation of TiO2-activated kaolinite composite for photocatalytic degradation of rhodamine B dye	2
Design and cytotoxic activity of thiazolidinones via one-pot, three component reaction under microwave and traditional method	2
Synthesis, spectroscopic, biological and structural characterizations for the gold(III), platinum(IV), and Ruthenium(III) ceftriaxone drug complexes	2
Synthesis of biologically active xanthene, chromene, thiazole, thiophene, pyrazole, and isoxazole derivatives from camphor	2
Highly sensitive zero-order emission system - fluorescence detection-liquid chromatographic method for simultaneous estimation of two banned phenyl xanthene dyes in bottled chili sauce	2
Facile synthesis and dyeing performance of some disperse monomeric and polymeric dyes on nylon and polyester fabrics	2
Co-ordination behaviour of hydrazine and isomers of acetoxy benzoic acids with transition metal ions	2
Chemoselective metal free deallylation of α-allyl-phenyl-carboxylic esters under reduction condition	2
An integrated approach for the characterization of groundwater quality using multivariate statistical techniques and spatial analysis	2
Preparation, spectroscopic, thermal and molecular docking studies of covid-19 protease on the manganese(II), iron(III), chromium(III) and cobalt(II) creatinine complexes	2
Essential oil and smoke components of Carissa spinarum	2
Theoretical and experimental investigation of thiourea derivatives: synthesis, crystal structure, in-silico and in-vitro biological evaluation	2
Optimization of parameters for bio-ethanol production from sweet sorghum (Sorghum bicolor (L.) Moench) stalk juice and finger millet malt using Taguchi method	2
Extraction and preconcentration of many metals ions by using CPE technique	2
New iron(III), cobalt(II), nickel(II), copper(II), zinc(II) mixed-ligand complexes: Synthesis, structural, DFT, molecular docking and antimicrobial analysis	2
Synthesis, crystal structure, DFT calculation and Hirshfeld surface analysis of N-(4-methyl phenyl)-2-(3-nitro-benzamido) benzamide	2
Effervescent-assisted deep eutectic solvent-based dispersive liquid-liquid microextraction of Cr(VI) in aqueous samples	2
The magnetic characteristics and electronic configuration of GAN compound modified by individual impurities (Fe and Ni)	2
Chemical composition, antibacterial and antioxidant activities of essential oils from Ccyphostemma adenocaule and Ziziphus spinachristi	2
Ultrasound-assisted dispersive liquid-liquid microextraction approach for preconcentration of acyclovir as antiviral drug in dosage forms prior to spectrophotometric determination	2
Novel series of thiazole-based complxes; characterization, structural optimization, in-vitro and in-silico assessments against Covid-19 virus compared to Palxlovid drug	2
Levels of selected metals in the fruits of a wild edible plant (Rubus steudneri Schweinf) and its underlying soil	2
Heavy metal ions in polluted water removable by synthesising a new compounds for dithiocarbamate derivatives	2
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	2
Synthesis, spectroscopic characterization, biological screening and POM analysis of potentially bioactive copper(II) carboxylate complexes	2
Paper microfluidic device and spectrophotometry methods for colorimetric detection of phenylephrine hydrochloride in pure and pharmaceutical preparations	2
Cytotoxic compounds from the root bark of Securidac alongipedunculata	2
Design, synthesis of novel Schiff bases as potential insecticidal agents against Spodoptera frugiperda (Lepidoptera: Noctuidae)	2
Silver nanoparticle-modified graphite pencil electrode for sensitive electrochemical detection of chloride ions in pharmaceutical formulations	2
Analyzing cyclobutane: A vibrational hamiltonian approach using dynamical U(2) Lie Algebras	2