Co Complexes Research Articles

Synthesis, Characterization and Spectral Studies of Some Metal Ions Complexes with New Schiff Base Ligand Derived From 6- Amino Penicillanic Acid And Biological Screening Study For The Pt(II) Complex.

The complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg (II) and Pt(II)were prepared from the complexation reaction between the new Schiff base ligand and Selected Metal Ions. Ligand was derived from the condensation reaction of Oxo(4-(pyridin-2-yl)phenyl) methyline, 4-amino antipyrine, and 6-amino pencillic acid ). The ligand and its complexes were characterized by C.H.N elemental analysis, Uv-Vis, FT-IR, and molar conductivity, Atomic absorption, magnetic moment measurements and mass spectra studies. The results of this studies show the coordination sites for the ligand with the metal ion were to be through oxygen, nitrogen atoms of 6-amino pencillic acid, and the nitrogen atom of 4-amino antipyrine. The complexes were found to have the general formula [(M)(L)2]Cl2 where M = Co(II), Ni(II), Cu(II), Zn(II), Hg(II), and Cd(II), except the [Pt(L)Cl]Cl. The electronic spectral and magnetic measurement data indicated that the complexes exhibited octahedral geometry, except the Pt(II) complex suggested a square planar geometry around the central metal ion. The ligand forms shape as natural tridentate manner. The biological activity results showed the inhibitory effect for platinum(II) the complex. In this study the cytotoxicity of Pt(II) complex on human colon cancer cell line LS 174 T CRC was investigated and African green monkey kidney cells normal cells were MTT assay. The metal complexes showed selective cytotoxicity against colorectal, this metal Complex excelled in halting proliferation of LS 174 T CRC cancer cells line with median inhibitory concentration (IC50) values of Pt(II) complex. The results indicate undoubtedly the possibility of using them as antitumor drugs in the field of pharmacy colon cancer.

Synthesis, Characterization and Breast Anti-cancer Activity of Iron(II), Cobalt(II), Nickel(II) and Copper(II) Complexes with a Hexadentate Schiff Base Ligand Derived from 2,5-Dihydroxy-1,4-benzoquinone with 5-Amino-2-methylphenol

The complexes of Fe(II), Co(II), Ni(II), and Cu(II) Schiff base ligand derived from 2,5-dihydroxy-1,4-benzoquinone and 5-amino-2-methylphenol were synthesized. The ligand was synthesized by the reaction between the mentioned ketone and amine in 1:2 molar ratio, respectively. The four metal complexes were synthesized by refluxing the ligand with the related metal(II) chloride salts. The synthesized compounds were characterized using FTIR spectroscopy, UV-visible, 1H-NMR, conductivity, atomic absorption, magnetic susceptibility, and thermogravimetric analysis. According to the results, the chelation between metals and ligand occurs with the imine groups and the deprotonated hydroxyl groups of 2,5-dihydroxy-1,4-benzoquinone and 5-amino-2-methylphenol in the ligand. The conductivity test of the four complexes shows the non-electrolytic nature of them. The magnetic susceptibility values of Fe(II), Co(II), Ni(II), and Cu(II) complexes are 4.20, 4.11, 2.97, and 2.34 B.M, respectively. The thermogravimetric and atomic absorption analyses suggest the general chemical formula for the complexes is [M2(L)(H2O)6]. In addition, the ligand and one of its metal complexes (Co(II) complex) were examined against breast cancer cells, and they gave the IC50 of 101.24 and 129.2 µg/mL, respectively. This result suggests that Co(II) complex is a better anti-cancer agent in comparison with the ligand.

Classical Gold Carbonyl Complexes in Tetrahedral and Trigonal-Planar Settings.

A unique four-coordinate, classical gold(I)-carbonyl complex with substantial backdonation from gold has been isolated by using a B-methylated and fluorinated tris(pyridyl)borate chelator. Its lighter silver(I) and copper(I) analogs enabled a study of trends in the coinage-metal family. The B-arylated ligand version also afforded a gold-carbon monoxide complex that displays a notably low C-O stretch value, but with trigonal planar geometry at the gold. A computational analysis shows that the AuI -CO bonds of these tris(pyridyl)borate ligand-supported molecules consist of electrostatic attraction, OC→Au σ-donation, and very significant Au→CO π-back-bonding components. The latter is responsible for the observed C-O stretching frequencies, which are lower than in free CO.

Preparation and Characterization of Fluorone Ligand Complexes for Co+2, Mn+2, and Fe+2 Metallic Ions

Preparation and Characterization of Fluorone Ligand Complexes for Co+2, Mn+2, and Fe+2 Metallic Ions

Effect and mechanism of phosphate enhanced sulfite activation with cobalt ion for effective iohexol abatement.

Sulfate radical (SO4•-)-based advanced oxidation processes (AOPs) from sulfite activation have recently received attention for abatement of microorganic pollutants in the aquatic environments. Trace-level Co(II) has been demonstrated to be effective for promoting sulfite activation (simplified as the Co(II)/sulfite system) and the corresponding radical formation, yet this process is challenged by the limited valence inter-transformation of Co(II)/Co(III). In order to enhance this valence inter-transformation, a novel Co(II)/HPO42-/sulfite system is developed in this work, because HPO42-, as a typical radical scavenging agent, has the advantage of complexing with Co(II) without quenching effect. In this work, complexation of Co(II) with HPO42- can regulate the electronic structure of Co(II), accelerate electron transfer, and promote valence inter-transformation of Co(II)/Co(III) during the sulfite activation process. The Co(II)/HPO42-/sulfite system exhibits superior iohexol abatement performance under circumneutral conditions. For pH 8.0 and Co(II) dose of 1 μM, the iohexol abatement efficiency is as high as 98%, which is considerably higher than that of the Co(II)/sulfite system (50%). SO4•- is identified as the predominant reactive radical contributing to iohexol abatement. The presence of HPO42- broadens the pH adaptability of the Co(II)/sulfite system for iohexol abatement. In addition, the coexisting Cl- exerts an inhibitory effect on iohexol abatement while the other cations and anions show negligible effect. The Co(II)/HPO42-/sulfite system displays good reusability and adaptability towards various organic pollutants. This study highlights the important role of complexation of Co(II) with HPO42- in sulfite activation and provides a feasible idea for abatement of the microorganic pollutants.

Synthesis and reactivity of cobalt dinitrogen complex supported by nonsymmetrical pincer ligand

A nonsymmetrical PNN pincer ligand [6-(tBu2PNH)C5H4N-2-(3-Mes)C3H2N2] and its corresponding cobalt-N2 complex were synthesized and characterized. By the stoichiometric reaction of the PNN ligand lithium salt with CoCl2, the complex 3, (PNN)CoCl, was obtained. Then, reduction of 3 with NaBHEt3 under a dinitrogen atmosphere yielded complex 5, (PNN)Co(I)(η1-N2). Single-crystal X-ray analysis, IR spectrum, and DFT calculations revealed that the dinitrogen in 5 was only weakly reduced by the cobalt center. The reactions of 5 with carbon monoxide and 2,6-dimethylphenyl isocyanide gave carbonyl and isocyanide complexes 6 and 7 with the release of N2, respectively. Furthermore, these cobalt complexes, especially complex 5, demonstrated the capacity to convert dinitrogen to N(TMS)3 with moderate efficiency.

Structure and properties of some S-containing azo-derivatives of 5-pyrazolone and their Cu(II), Co(II), and Ni(II) metal complexes

Four S-containing azo-compounds based on 1-phenyl-3-methyl-4-azopyrazole-5-one and 10 novel metal complexes of Cu(II), Co(II), and Ni(II) were isolated and identified by X-ray single crystal analysis, FTIR, 1H NMR, and UV–Vis spectroscopy. The hydrazo-forms of the organic species in a solid state and solutions were proven. Studies of proteolytic equilibria, as well as complex formation in solutions, allowed the calculation of acidity and formation constants of the complexes in ethanol aqueous solutions. The types of coordination of organic species were determined by spectroscopic analysis together with X-ray analysis of a model complex. The sulfonamide group seems not to be involved in coordination. The toxicity of the compounds was determined based on the nature of the diazo-component and increased by replacing a benzene ring with a naphthol fragment. Computer screening revealed that the studied compounds exhibited the highest likelihood of enhancing HMGSC2 expression and displayed potential as antipyretics and anti-tuberculosis agents. Additionally, their solubilities in n-hexane, 1-octanol, and phosphate buffer at pH 7.4 were assessed. These solvents serve as models of physiological fluids and possess lipophilic properties that aid in membrane penetration. Subsequently, the thermodynamic constants were calculated.

A Δ-learning strategy for interpretation of spectroscopic observables.

Accurate computations of experimental observables are essential for interpreting the high information content held within x-ray spectra. However, for complicated systems this can be difficult, a challenge compounded when dynamics becomes important owing to the large number of calculations required to capture the time-evolving observable. While machine learning architectures have been shown to represent a promising approach for rapidly predicting spectral lineshapes, achieving simultaneously accurate and sufficiently comprehensive training data is challenging. Herein, we introduce Δ-learning for x-ray spectroscopy. Instead of directly learning the structure-spectrum relationship, the Δ-model learns the structure dependent difference between a higher and lower level of theory. Consequently, once developed these models can be used to translate spectral shapes obtained from lower levels of theory to mimic those corresponding to higher levels of theory. Ultimately, this achieves accurate simulations with a much reduced computational burden as only the lower level of theory is computed, while the model can instantaneously transform this to a spectrum equivalent to a higher level of theory. Our present model, demonstrated herein, learns the difference between TDDFT(BLYP) and TDDFT(B3LYP) spectra. Its effectiveness is illustrated using simulations of Rh L3-edge spectra tracking the C-H activation of octane by a cyclopentadienyl rhodium carbonyl complex.

Design, Preparation some transition metal complexes of Chalcone-Azo with Paracetamol ligand and Evaluation anti-biological activity of some complexes

This search designed new series complexes of (Mn , Fe, Co, Ni, Cu, and Pd)(II) ,which prepared from Chalcone - Azo derived contained Paracetamol . The results illustrate that, the mole ratio (ligand : metal) (2:1) for all complexes and the geometric shapes of complexes were an Octahedral except Pd(II) complex was Square planer. the complexes characterized by ( UV-Visible, FTIR, C.H.N, Electrical molar conductivity and Magnetic susceptibility). This ligand coordinated with metal ions via (N) atom of Azo group and (O) atom of OH group of Paracetamol , the biological examination tested Pd(II)complex as antitumor Thyroid cancer cells(FTC-133) and compered it with healthy cells to evaluate the possibility of using it as therapeutic method. In addition , it tested Cu(II) and Ni(II) complexes as antimicrobial activity towards two types of Gram negative and Gram positive bacteria

Exploring diaminomaleonitrile-derived Schiff base ligand and its complexes: Synthesis, characterization, computational insights, biological assessment, and molecular docking

A tetra dentate ONNO donor diaminomaleonitrile-based Schiff base ligand along with its four new complexes of Co(II), Ni(II), Cu(II), and Zn(II) have been synthesized. The computational approach has been utilized to provide a theoretical framework for understanding the electronic structure and properties of these complexes. The distorted octahedral geometry of the Schiff base metal complexes indicates that the metal ions are coordinated with the ligand through ONNO donor sites, which is further confirmed by characterization using physiochemical and spectroscopic techniques like elemental analysis, mass, electronic, infrared, 1H, and 13C spectra. In addition, magnetic behavior is analyzed using the Vibrating Sample Magnetometer(VSM). To evaluate the potential modes of biomolecular interactions with the synthesized complexes utilizing Deoxyribo Nucleic Acid(DNA) and to assess the corresponding binding constants, an absorption spectroscopic technique has been utilized. Metal complexes are reported to have a range of binding constant values from 5.45 × 104 M−1 to 4.35 × 105 M−1 with different binding modes, such as intercalation, mixed mode, and electrostatic contact. In addition, in-vitro tests for antibacterial and anti-inflammatory activity have been employed to assess the bioactivities. With an IC50 value of 209.24 µg/mL, the Zn(II) complex is found to show considerable anti-inflammatory action as well as has superior antibacterial activity among all other complexes. The existence of electron-withdrawing CN groups together with other factors can be accounted for biological activity in our reported complexes. Further, molecular docking simulations are conducted to gain insights into the molecular-level interactions and to determine the potential binding energies of inhibitors whose results are in consistent with the in-vitro investigations.

Mononuclear Four-Coordinate Bis-Fluoride Bis-NHC Complexes of Chromium(II), Iron(II), and Cobalt(II).

The reaction between silylamido complexes of Cr(II), Fe(II), and Co(II) and IMes·2HF salt in the presence of IMes (IMes = 1,3-dimesitylimidazol-2-ylidene) led to isolation of Cr(IMes)2F2 (2-Cr), Fe(IMes)2F2 (2-Fe), and Co(IMes)2F2 (2-Co). X-ray structural studies revealed that 2-Cr adopts square planar geometry, while 2-Fe and 2-Co have distorted tetrahedral geometry. Magnetic susceptibility studies of 2-Cr, 2-Fe, and 2-Co were consistent with high-spin complexes, S = 2 for 2-Cr/2-Fe and S = 3/2 for 2-Co. We demonstrated that fluoride can be successfully exchanged for cyanide and azide using trimethylsilyl cyanide and trimethylsilyl azide (3-Fe and 4-Fe). DFT studies suggest that the preference of 2-Cr to adopt square planar geometry over tetrahedral is due to its d4 metal center, where four electrons fill the lower-lying d-orbitals.

Novel approach to supercritical fluid chromatography-mass spectrometry analysis of metal ions using EDTA complexation

BackgroundReliable methods enabling detection of metal ions, and especially heavy metals, in different matrices are necessary in various fields such as ecology, pharmaceuticals and toxicology. As some of the currently used methods suffer from spectral and chemical interferences, this study investigates the applicability of SFC-MS/MS for the determination of metal ions. ResultsEffective novel approaches for metal ion analysis using CO2-based mobile phase were developed using three ligands forming metal complexes. As metal-EDTA complexes are prepared by simple addition of EDTA to the solution containing metal ions, this approach to metal ion analysis does not require laborious synthesis and isolation of solid metal-complexes. Besides, two other approaches using diethyldithiocarbamate and acetylacetonate as ligands were compared. Metal complexes of Cu, Co, Cr, Fe, Al, Mn, and Zn with all 3 ligands were synthesized and their identity was confirmed by high-resolution mass spectrometry (HRMS). The suitability of the three developed UHPSFC-MS/MS methods was examined using the determination of calibration range and repeatability of injections. Moreover, the universality of the developed UHPSFC-MS/MS method for the determination of metal-EDTA complexes was proved by analyzing Ni, Bi and Pb as additional metal ions. Significance and noveltyThis study demonstrates the extended range of applicability for SFC based separations. For the first time, the possibility to analyze metal complexes with EDTA using a fast and reliable ultra-high performance supercritical fluid chromatography-tandem mass spectrometry (UHPSFC-MS/MS) method is reported. The three developed UHPSFC-MS/MS methods are able to separate DDC, acac, and EDTA complexes of various metals very efficiently (total cycle times of 5, 2, and 3 min, respectively). They offer a fast and green alternative to chromatographic methods commonly used for metal ion analysis.

Ruthenium(II) carbonyl complexes bearing schiff-base ligands: Syntheses, characterization, and their catalytic activities for benzylic C-H oxidation

Thermal reactions of Ru3(CO)12 with two equivalents of N,O-bidentate ligands L1H-L7H (naphthyl-substituted Schiff-bases) afforded the corresponding Ru(II) carbonyl complexes [L2Ru(CO)2] 1a-1g in good yields. All the Ru complexes were well characterized by elemental analysis, FT-IR, NMR and HR-MS. The molecular structures of 1c, 1e and 1g were reconfirmed by X-ray crystallography. These complexes showed high activity in the selective oxidation of benzylic C-H bonds with tert-butylhydroperoxide (TBHP) under mild conditions to give aryl ketones in 60 %–98 % yields. This catalytic protocol proceeds at room temperature with low catalyst loading (1.0 mol%), displays broad functional-group compatibility and has potential application for industry-scale reactions.

Five-coordinated bis-dioxolene cobalt complexes with triphenylphosphine

Three novel five-coordinated bis-dioxolene cobalt complexes with triphenylphosphine were synthesized. Complexes differ by dioxolene ligands: 3,6-di-tert-butylcyclohexa-3,5-diene-1,2-dione (complex 1), 5,8-di-tert-butyl-2,3-dihydro-1,4-ethanoquinoxaline-6,7-dione (complex 2), 3,6-di-tert-butyl-4-methoxycyclohexa-3,5-diene-1,2-dione (complex 3). The geometry of the inner coordination core of all compounds is close to square pyramidal. The base of the pyramid is formed by oxygen atoms of the dioxolene ligands whereas phosphine occupies the apical position. The planes of dioxolenes are slightly bent relative to each other. The magnetic moment values at low temperatures correspond to one unpaired electron per molecule for all complexes. In the complex containing a methoxy group in the dioxolene ligand (3), an increase in the magnetic moment is observed upon heating above 250 K, which indicates the appearance of a fraction of molecules with a higher spin multiplicity. A slight elongation of the Co-O, Co-P distances and shortening of the CO bonds is observed at 353 K. DFT calculations using the TPSSh functional correctly reproduce geometries of the complexes as well as their electronic absorption and vibrational spectra. DFT predicts the doublet-state complexes to possess the lowest enthalpies. Gibbs free energy of sextet complex 3 in solution is lower than that of its doublet state. This agrees well with the experimental electronic absorption spectra. On the basis of TD DFT calculations, a strong NIR absorption band in the spectra of low-spin 1 and 2 is assigned to the transition involving charge transfer from cobalt to the dioxolene and PPh3 ligands (MLCT). The doublet molecules can be described by the (↑SQ—)(Co3+)(Cat2—) ↔ (Cat2—)(Co3+)(↑SQ—) resonance structures. The sextet state in all three systems represents the (↑SQ—)(↑↑↑Co2+)(PPh3)(↑SQ—) bis-semiquinonate complex of high-spin Co(II). On the basis of the conventional description the doublet → sextet transition in complexes can be interpreted as a VT/SCO transformation. The electron density analysis of the doublet → sextet transition in the 1 and 3 molecules reveals areas of both increase and decrease in the charge density near the Co and O atoms.

Antifungal activity of Co(II) and Cu(II) complexes containing 1,3-bis(benzotriazol-1-yl)-propan-2-ol on the growth and virulence traits of fluconazole-resistant Candida species: synthesis, DFT calculations, and biological activity

Relevant virulence traits in Candida spp. are associated with dimorphic change and biofilm formation, which became an important target to reduce antifungal resistance. In this work, Co(II) complexes containing a benzotriazole derivative ligand showed a promising capacity of reducing these virulence traits. These complexes exhibited higher antifungal activities than the free ligands against all the Candida albicans and non-albicans strains tested, where compounds 2 and 4 showed minimum inhibitory concentration values between 15.62 and 125 μg mL−1. Moreover, four complexes (2–5) of Co(II) and Cu(II) with benzotriazole ligand were synthesized. These compounds were obtained as air-stable solids and characterized by melting point, thermogravimetric analysis, infrared, Raman and ultraviolet/visible spectroscopy. The analysis of the characterization data allowed us to identify that all the complexes had 1:1 (M:L) stoichiometries. Additionally, Density Functional Theory calculations were carried out for 2 and 3 to propose a probable geometry of both compounds. The conformer Da of 2 was the most stable conformer according to the Energy Decomposition Analysis; while the conformers of 3 have a fluxional behavior in this analysis that did not allow us to determine the most probable conformer. These results provide an important platform for the design of new compounds with antifungal activities and the capacity to attack other target of relevance to reduce antimicrobial resistance.

Synthesis and structure of rhenium carbonyl complexes bearing a saccharinate ligand

AbstractSaccharin (sacH) reacts with [Re2(CO)8(NCMe)2] at room temperature to afford dinuclear [Re2(CO)8(μ‐H)(μ‐sac‐κN,O)] (1), which contains a bridging sac ligand coordinated to both rhenium centers using the nitrogen and ketonic oxygen atoms, and the mononuclear compounds [Re(CO)5(sac‐κN)] (2) and cis‐[Re(CO)4(NCMe)(sac‐κN)] (3), both of which contain a sac ligand bonded to rhenium using only the nitrogen atom. Complex 3 that contains an MeCN ligand reacts with tri(2‐furyl)phosphine (PFu3) at room temperature to yield cis‐[Re(CO)4(PFu3)(sac‐κN)] (4). The molecular structures of 1–4 have been established by X‐ray crystallography, and the bonding in compound 1 has been examined by electronic structure calculations.

Relativistic and magnetic Breit effects for the reaction Sg + 6CO → Sg(CO)6 and Sg(OC)6: Prediction of the existence and atomization energy of the isomer Sg(OC)6

Our ab initio all-electron fully relativistic Dirac–Fock (DF) and Dirac–Fock–Breit–Gaunt (DFBG) and nonrelativistic (NR) Hartree–Fock (HF) calculations for seaborgium hexacarbonyl Sg(CO)6 predict atomization energies (Ae) of 68.81, 69.28, and 67.69 eV, respectively, at the corresponding optimized octahedral geometry. However, our DF, DFBG, and NR HF calculations for the isomer Sg(OC)6 yield atomization energies of 64.30, 64.77, and 62.62 eV, respectively, at the optimized geometry for this species. The optimized Sg–C and C–O bond distances (in Å) for octahedral Sg(CO)6 using our DF (NR) calculations are 2.15 (2.32) and 1.11 (1.11), respectively. However, the optimized Sg–O and O–C bond distances (in Å) for the isomer octahedral Sg(OC)6 obtained with our DF (NR) calculations are 2.80 (2.73) and 1.10 (1.11), respectively. Our prediction of the greater stability of Sg(CO)6 isomer at both the relativistic (DF and DFBG) and the NR HF levels of theory lends further support to the detection of Sg(CO)6 in the state-of-the-art gas-phase experimental studies of the carbonyl complex of seaborgium reported by Even et al. [Science 345(6203), 1491 (2014)].

Synthesis and Characterization of Ruthenium(II) Carbonyl Complexes of Substituted Quinazoline Derivatives and their Catalytic Activity

A series of ruthenium(II) carbonyl complexes of the types [RuCl2(CO)2L]2·nH2O {n = 1, L = L1, L3}; [RuCl2(CO)2(L)(H2O)]·nH2O {n = 1, L = L2, L4, L6 and n = 2, L = L7}; [RuCl(CO)2(L-H)(H2O)]2 {L = L5}; [RuCl2(CO)2]3(L)2 {L = L8} were synthesized where L is 6R-5,6- dihydrobenzoimidazo[1,2-c]quinazoline (R-Diq; R = phenyl: L1/furyl: L2/thiophenyl: L3/o or p-hydroxyphenyl: L4, L5/o or p- hlorophenyl: L6, L7/dimethylaminophenyl: L8). The Ru(II) complexes were characterized by elemental analyses, conductivity measurements, TGA, infrared, electronic, NMR and mass spectral techniques. An octahedral geometry around the metal ion was proposed for all the complexes and monomeric, dimeric and trimeric stereochemistry was suggested. The catalytic activity for few ruthenium(II) complexes towards oxidation of benzyl alcohol, hydroquinone and cyclohexanol was also investigated.

Synthesis of Triaminocyclopentadienyl Iron(II) Tricarbonyl Complexes and Application to the Synthesis of Aminophosphines

AbstractA new family of triaminocyclopentadienyl iron(II) tricarbonyl complexes has been synthesized, fully characterized and applied in hydrogenation transfer. These complexes are the first Earth‐abundant metal complexes able to catalyze reductive alkylation of primary and secondary aliphatic amines with 2‐diarylphosphinobenzaldehyde derivatives at room temperature. These non‐pincer type cyclopentadienyl iron(II) complexes demonstrate not only better efficiency than known cyclopentadienone iron carbonyl complexes but also high functionality tolerance. The resulting aminophosphines provide a straightforward and rapid access to potential P−N ligands.

Moxifloxacin and hydrazine mix ligand metal complexes of Cd(II), Cu(II), Co(II), and Zn(II); synthesis, characterization, and pharmacological activities, with molecular docking studies

In the current study, four new mixed ligand metal complexes of Cd(II), Cu(II), Co(II), and Zn(II) with moxifloxacin (used as a primary ligand) and hydrazine (as an ancillary ligand) were synthesized. The newly prepared organometallic compounds were characterized by using conventional spectroscopic (UV–Vis, Atomic absorption, FTIR, and powder XRD), microscopic (SEM), elemental (CHN), and thermal (TGA) techniques. The synthesized chelates were evaluated for cytotoxicity (by hemolytic activity) and antimicrobial activity against different bacterial (S. aureus, B. subtilis, E. coli, and P. multocidia) and viral (A. flavus, A. niger, R. solani, and A. alternata) strains. The prepared metal complexes were also in vitro assayed for antidiabetic potential through α-amylase inhibition assay, and the results were further verified through molecular docking studies. This study demonstrates that half of the new metal complexes are good antibacterial agents, and complex 2 was significantly active against all four assayed bacterial strains. All the synthesized mixed ligand metal complexes proved to have significant fungicidal activity. Complex 3 has proved to be potentially active (24.3%) against Aspergillus flavus with a higher activity as compared to the reference standard, i.e., fluconazole (23.5%). The hemolytic values of 6.07%, 4.94%, and 12.05% for metal complexes 2, 3, and 4, respectively, were in acceptable range and comparable to moxifloxacin, while higher (19.05%) for complex 1. Present work reveals that all the bi-ligand complexes are significant antidiabetic agents, where complexes 3 and 4, with 62.45% and 54.25% α-amylase inhibition, have a similar effect as that of the standard drug, i.e., Acarbose having 64.12% α-amylase inhibition. The molecular docking studies correspondingly prove these two compounds as potent α-amylase inhibitors.