. A series of complexes, labeled as 1, 2, and 3, representing [Zn(aq)2Cl2], [Cd(aq)2I2], and [Hg(aq)2Cl2], respectively, was reported. Their structures were characterized using elemental analysis and IR spectroscopy. The degradation of the complexes was investigated using the TGA analyses. Hirschfeld surface analysis was used to explore intermolecular interactions within complexes 1 and 2. DFT studies were also conducted to gain a deeper insight into the structural properties of the complexes. Additionally, Molecular docking studies assessed their interactions with the main protease of SARS-CoV-2 (Mpro) and the human ACE2 receptor. The results indicate that these complexes have strong binding affinities.

A series of transition metal complexes of three ligands, namely (E)-6-((2-hydroxybenzylidene)amino)hexanoic acid (L1), (E)-2-amino-5-(3-(2-hydroxybenzylidene)guanidino)pentanoic acid (L2), and 2-((2-hydroxybenzylidene)amino)butanoic acid (L3), synthesized from the condensation of salicylaldehyde with 6-aminohexanoic acid, L-arginine, and DL-2-aminobutyric acid, respectively, have been reported. The complexes generated from the ligand L1, with the formula [Cu(II)(L1)2] (1), [Mn(II)(L1)2] (2), [Co(II)(L1)2] (3), [Ni(II)(L1)] (4), [Cd(II)(L1)] (5), and [ZrO(II)(L1)] (6); complexes formed by the ligand L2, having the formula [Ni(II)(L2)] (7), [Co(II)(L2)] (8), and [Mn(II)(L2)] (9); and complexes produced from the ligand L3, with the formula [Cd(II)(L3)2] (10) and [Ni(II)(L3)2] (11) were investigated using a variety of spectroscopic techniques, including Fourier transform infrared spectroscopy (FTIR), ultraviolet–visible spectrophotometry (UV-Vis), ¹H-nuclear magnetic resonance (¹H-NMR), and thermogravimetric studies. The molecular structure, reactivity, and electronic characteristics of the synthesized compounds were studied using Density Functional Theory (DFT) simulations. The binding energy at the active site of these compounds was predicted using molecular docking experiments against the target 16 S subunit of bacterial ribosomal rRNA. Bacillus cereus (Gram +ve) and Escherichia coli (Gram −ve) were used to examine the metal complexes derived from ligand L1. Complexes 1 and 5 showed comparable antibacterial activity against both bacterial strains when compared to the reference drug kanamycin.

The surface oxygen vacancy defects generated from the abstraction of lattice oxygen atoms of bulk ceria accompanied by the reduction of CeIV to CeIII, are considered to play a pivotal role in photocatalysis. As ideal molecular models of nanoceria, atom-precise cerium-oxo clusters (COCs) hold great promise in determining the accurate CeIII/CeIV ratio and disclosing the underlying catalytic mechanism. However, the number of COCs, especially those mixed-valent COCs with high surface CeIII concentrations, is very limited on account of their formidable synthetic challenges. Herein, we report the first silsesquioxane-protected COC, Ce13, featuring a fluorite-type Ce13O8 core, which is structurally reminiscent of bulk ceria. The cluster exhibits a substantially high CeIII/CeIV ratio with one central CeIV encapsulated by twelve surface-exposed CeIII atoms, serving as a molecular analogue of highly reduced ceria surfaces. This cluster shows strong light-harvesting ability that covers the entire visible range and demonstrates high photocatalytic activity and selectivity for oxidative coupling of various amines, where superoxide radical was involved using O2 as the oxidant at room-temperature under visible light. The surface CeIII sites are proposed to significantly enhance the adsorption and activation of O2. These results highlight the potential of Ce13 as an efficient sustainable photocatalyst for organic transformations.

A novel 3D Ba(II) coordination polymer derived from 3-(3-carboxyphenyl)isonicotinic acid (H2L), abbreviated as [Ba(L)(H2O)3]n, was synthesized via a one-pot reaction in an ethanol/H2O/DMF mixture (v/v/v = 4:2:1). The composition and purity of the polymer were confirmed using elemental analysis (EA), IR spectroscopy, UV/vis spectroscopy, powder X-ray diffraction (PXRD), and thermogravimetric analysis (TGA). Single-crystal X-ray diffraction revealed that the complex crystallizes in the monoclinic system with space group P121/c1, revealing that the Ba(II) center is nine-coordinated, with four oxygen atoms from three individual L ligands, one nitrogen atom from a single L ligand, and four oxygen atoms from coordinated water molecules. The HOMO-LUMO orbital distribution indicates an energy gap of 0.080972 Ha (2.441 eV). The electrostatic potential shows that regions of higher potential are mainly concentrated in the six-membered aromatic rings, while lower-potential regions are found near oxygen and nitrogen donor atoms. Furthermore, the Ba(II) coordination polymer exhibits promising catalytic activity, achieving a 66.3% conversion of benzyl alcohol and a 46.4% yield of benzaldehyde under 5 bar O2 for a duration 2 h in THF.

The traditional strategies to improve the catalytic performance of metal complexes mainly focus on the selection of ligands and central metal ions. Herein, a novel calcium(II) coordination polymer, abbreviated as [Ca(L)(H2O)3]n·H2O, was synthesized by assembling 3-(3-carboxyphenyl)-isonicotinic acid (H2L), NaOH, and calcium perchlorate tetrahydrate. Its structure was thoroughly investigated using elemental analysis, infrared spectroscopy, UV/vis spectroscopy, and thermogravimetric analysis. The structure of the calcium(II) coordination polymer was further ascertained by single-crystal X-ray diffraction, revealing that each Ca(II) ion is eight-coordinated with five oxygen atoms from three different L ligands and three oxygen atoms from three coordinated water molecules, forming a distorted square antiprism geometry. To gain further insight into the structure, DFT studies were also conducted. The frontier molecular orbitals of the Ca(II) coordination polymer show that the DFT energy gap is 0.12279 Ha (3.34 eV). The electrostatic potential results reveal that regions with higher electrostatic potential are primarily concentrated in the six-member carbon ring structures of the Ca(II) coordination polymer. Conversely, areas with lower potential are mainly located near oxygen and nitrogen atoms. Additionally, the catalytic efficiency of the studied polymer showed that it can achieve a 68.7

In this work, a new Co(II) complex, abbreviated as [Co(L)(bipy)(H2O)2]n (1) was prepared using cobalt(II) acetate tetrahydrate, 2-((2’-carboxybenzyl)oxy)benzoic acid (H2L), and 2,2’-bipyridine (bipy) ligands in a mixture solution of ethanol and water (v: v = 3: 1). The structure of the complex (1) was analyzed by elemental analysis (EA), infrared (IR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, thermogravimetric analysis (TG), and single-crystal X-ray diffraction techniques. The complex (1) crystallizes in the monoclinic space group C2/c, featuring a distorted octahedral [CoO₄N₂] coordination sphere, by two oxygen atoms from the carboxylate groups of two 2-((2’-carboxybenzyl)oxy)benzoate (L) ligands, two oxygen atoms from coordinated water molecules, and two nitrogen atoms (N1 and N2) from a single 2,2’-bipyridine (bipy) ligand. Bridging carboxylate ligands (L) form a 1D chain, which extends into a 2D layer via π–π interactions of the 2,2’-bipyridine ligands (bipy). The DFT calculations of the complex (1) indicates that the HOMO is predominantly distributed on the oxygen and nitrogen atoms bonded to Co(II) ion, but the LUMO is mainly localized around distributed in the six-membered carbon ring adjacent to the Co(II) ion. Electrostatic potential calculation of the complex (1) shows that the regions with higher electrostatic potential are mainly located on the aromatic ring, whilst the lower electrostatic potential regions are primarily located near the oxygen and nitrogen atoms. The electrochemical behavior of the complex (1) was investigated in acetonitrile and 1 mol·L⁻¹ sulfuric acid. In ACN/TBATFB, the complex (1) exhibits a well-defined, predominantly reversible Co(III)/Co(II) redox couple, indicating good electrochemical stability, whereas in 1 mol·L⁻¹ H₂SO₄, a significantly different redox response with enhanced anodic currents and a prominent oxidation peak is observed, arising from the synergistic effect of ligand protonation–oxidation processes and the metal-centered Co(III)/Co(II) redox couple under acidic conditions. The cytotoxicity of the complex (1) and CoCl₂ was evaluated against L02, PANC-1, and MCF7 cell lines using the MTT assay. The complex (1) exhibited lower IC₅₀ values and higher selectivity for cancer cells than CoCl₂, attributable to improved cellular uptake and ROS-mediated oxidative stress, whereas free Co²⁺, which stimulated cell proliferation at low concentrations, the complex (1) showed no growth-inducing effect, highlighting its potential as a cobalt-based anticancer agent.

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Vanadium, previously considered a minor trace element, is gaining global environmental attention due to its expanding applications in metallurgy, energy storage, catalysis, and agriculture. With this rise in its industrial and technological uses, however, anthropogenic emissions of vanadium into the atmosphere, soils, and water bodies have also escalated. Unlike many heavy metals, vanadium exhibits complex redox behavior, primarily existing as V(IV) and V(V) species, which significantly impacts its environmental mobility, bioavailability, and toxicity. Vanadium exhibits complex behavior that necessitates an integrated research approach to better understand its various roles in scientific fields. This review summarizes the current knowledge on vanadium's environmental presence, transport, chemical forms, and ecological impacts, investigating primary sources like fossil fuel combustion and mining, as well as innovative technologies such as vanadium redox flow batteries. The study highlights vanadium's toxic effects on aquatic life, plants, and soil microbes, addressing risks linked to different chemical forms and chronic exposure gaps. It also discusses human exposure and regulatory disparities alongside challenges in analytical methods for measuring trace vanadium fluxes. In this review, "vanadium speciation" denotes the occurrence of vanadium across different oxidation states, coordination environments, and environmental phases. The study concludes by highlighting important research gaps in the areas of long-term ecological effects, microbiological interactions with vanadium, and the environmental consequences of recovering and recycling vanadium within the context of a circular economy. This places vanadium in the Anthropocene era as a trace metal that is evolving from an industrial element to an emergent environmental pollutant.

A cyclopentadienyl rhodium(III) complex incorporating a phosphonate-functionalized 2,2′-bipyridine ligand was synthesized and comprehensively characterized to elucidate its biomolecular interactions and biological activity. The complex was structurally confirmed by spectroscopic and analytical techniques and further investigated using density functional theory (DFT) calculations to evaluate its electronic structure and frontier molecular orbitals. The interaction of the Rh(III) complex with calf thymus DNA was systematically examined using UV–visible absorption, fluorescence displacement assays with ethidium bromide, circular dichroism spectroscopy, and viscosity measurements. The results indicate a strong affinity toward DNA with an intrinsic binding constant of 2.85 × 10⁴ M⁻¹, consistent with a non-classical binding mode dominated by groove association rather than full intercalation. Molecular docking studies support this conclusion, revealing preferential minor-groove binding stabilized by hydrogen bonding and electrostatic interactions between the cationic metal center and the DNA phosphate backbone. Protein binding studies with bovine serum albumin (BSA) were carried out using absorption and fluorescence quenching experiments, demonstrating static quenching behavior and strong binding affinity, consistent with a single-site interaction. In vitro cytotoxicity assays revealed that the Rh(III) complex exhibits significant antiproliferative activity against MDA-MB-231 and A549 cancer cell lines, while displaying minimal toxicity toward normal VERO cells. Fluorescence microscopy using AO/EB staining confirmed apoptosis as the predominant mode of cell death. In addition, the complex showed pronounced antibacterial and antifungal activity against both Gram-positive and Gram-negative microorganisms. Overall, this study highlights the utility of phosphonate-modified Cp*Rh(III) complexes as multifunctional bioactive platforms, integrating detailed analytical characterization, theoretical insight, and biological evaluation, and provides a framework for the rational design of metal-based agents with tunable biomolecular interactions.

A new centrosymmetric dinuclear Cd(II) complex, [Cd2(L)4(Phen)2] (1) (HL = 2-formylphenoxyacetic acid; Phen = 1,10-phenanthroline), was synthesized using Cd(NO3)24H2O, 2-formylphenoxyacetic acid, 1,10-phenanthroline, and NaOH in a CH3CH2OH/H2O mixture (v:v = 3:1). The structure of 1 was confirmed through elemental analysis, IR spectroscopy, UV-vis spectroscopy, and single-crystal X-ray diffraction analysis. In 1, the crystallographic independent Cd(II) ion in the complex adopts a seven-coordinate geometry, forming a distorted pentagonal bipyramidal coordination environment of N2O5. The complex assembles into a 1D chain structure through pi-pi stacking interactions between the phenanthroline rings, which further interpenetrate to create a two-dimensional layered structure. In addition, the fluorescence properties of the Cd(II) complex in various solvents, including water, DMF, and ethanol, were investigated. The fluorescence properties of the Cd(II) complex in water, DMF, and ethanol were that the maximum emission wavelengths are 431 nm in water, 432 nm in DMF, and 436 nm in ethanol upon excitation at 375 nm, with fluorescence intensity decreasing as solvent polarity increases.

In this study, we successfully designed and synthesized a novel one-dimensional Cd(II) coordination polymer, [CdL3]n [HL = 4-acetylphenoxyacetic acid], employing 4-acetylphenoxyacetic acid as both a chelating and bridging ligand. The structural features of the Cd(II) coordination polymer were analyzed using infrared (IR) spectroscopy, the thermogravimetric and differential thermal analysis, and single-crystal x-ray diffraction. The results indicated that the Cd(II) ion adopts a distorted pentagonal pyramidal coordination geometry involving seven oxygen atoms from five different 4-acetylphenoxyacetate ligands. This configuration forms a one-dimensional chain structure through the bridging interactions of the oxygen atoms in the ligands. The Hirschfeld surface analysis was implemented to examine intermolecular interactions within the Cd(II) coordination polymer. Furthermore, the photoluminescent properties of the Cd(II) coordination polymer were investigated in ethanol, indicating that the studied material has the potential to exhibit luminescent properties.

Abstract A new hybrid salt [4-apyH][Cr(dipic) 2 ]·3H 2 O ( 1 ) ([4-apyH] + = [C 5 H 7 N 2 ] + = 4-aminopyridinium cation, dipic 2− = dipicolinato(2−) ligand) has been synthesized and characterized by elemental and thermal analyses, FT-IR and UV/Vis spectroscopies, EPR, single-crystal and powder X-ray diffraction. Salt 1 consists of one [Cr(dipic) 2 ] − complex anion, one 4-aminopyridinium [4-apyH] + counter ion, and three water molecules of crystallization. Each Cr(III) center in the anionic complex exhibits a distorted octahedral coordination. The crystal structure of 1 features alternating layers of organic cations and complex anions. The packing within the structure is stabilized by hydrogen bonds, including O–H⋯O and N–H⋯O interactions, which connect water molecules, anionic complexes, and cationic entities. The thermogravimetric diagram shows two main weight losses, corresponding to the removal of water molecules and the decomposition of the framework, respectively. The molar conductivity Ʌ m = 129 S cm 2 mol −1 confirms the 1:1 electrolyte nature of salt 1 in water. The EPR spectrum is consistent with Cr 3+ ions in an octahedral environment. The antimicrobial activity of salt 1 has been evaluated in vitro against four pathogenic microorganisms, including three bacteria and one yeast. The results showed significant antibacterial activity against Helicobacter pylori PMSS and antifungal activity against Candida albicans N50 .

A novel organic–inorganic hybrid salt, (C5H7N2)[Cr(pydc)2]·3H2O (1) (C5H7N2+ = 4-aminopyridinium cation, pydc2- = pyridine-2,6-dicarboxylicato(2-) ligand) has been synthesized and characterized by elemental and thermal analyses, FT-IR and UV/Vis spectroscopies, EPR, single-crystal and powder X-ray diffraction. Salt 1 consists of one [Cr(pydc)2]− complex anion, one 4-aminopyridinium C5H7N2+ counter ion, and three water molecules of crystallization. Each Cr(III) center in the anionic complex exhibits a distorted octahedral coordination. The crystal structure of 1 features alternating layers of organic cations and complex anions. The crystal packing is stabilized by a 3D network of hydrogen bonds, including O–H∙∙∙O and N–H∙∙∙O interactions, which connect water molecules, anionic complexes, and cationic entities. The thermogravimetric diagram shows two main weight losses, corresponding to the removal of water molecules and the decomposition of the framework. The EPR spectrum is consistent with Cr3+ ions in an octahedral environment. The antimicrobial activity of salt 1 has been evaluated in vitro against four pathogenic microorganisms, including three bacteria and one yeast. The results showed significant antibacterial activity against Helicobacter pylori PMSS and antifungal activity against Candida albicans N50.

Two copper(II) coordination polymers bridged by dicyanamido (N(CN)(2)(-))- and azido (N-3(-)) ligands, [CuLN(CN)(2)](n) (1) and [{CuLN3}(2)(H2O)](n) (2) (L- = N-(2-pyridylmethyl)-L-alaninato) have been synthesized and thoroughly studied using structural and spectroscopic methods. Both complexes crystallize in the chiral orthorhombic P2(1)2(1)2(1) space group. Complex 1 features 1D zigzag chains through the two terminal nitrogen nitrile groups of the mu(1,5)-bridging N(CN)(2)(-) ligand. These chains are assembled via intermolecular N-H center dot center dot center dot O hydrogen bonding interactions, forming a 3D supramolecular network. Complex 2 is a dissymmetric dimer with the Cu1 center being in a distorted square pyramidal geometry environment, while the Cu2 center is in a distorted octahedral geometry. In complex 2, an infinite 3D supramolecular structure is achieved via Cu1-O2(i) bonds, O2(i) being the oxygen atom of a carboxylate group from the L- ligand of an adjacent dimer. Intermolecular hydrogen bonding interactions of the type N-H center dot center dot center dot O in 1 and N-H center dot center dot center dot O and O-H center dot center dot center dot O in 2 contribute to stabilizing the threedimensional frameworks. The three-dimensional Hirshfeld surface (3D-HS) analysis and the two-dimensional fingerprint (2D-FP) plots reveal that the two structures are dominated by the H center dot center dot center dot H and N center dot center dot center dot H/H center dot center dot center dot N contacts. Upon excitation at 315 nm, maximum emissions centered at 498 nm and 805 nm for 1 and at 497 nm and 805 nm for 2 are exhibited. These luminescence behaviors are attributed to charge transition between the L- ligand and the Cu2+ ions.

A new series of quinazoline-isoxazole derivatives (5a-o) were synthesized based on molecular hybridization approach and features of marketed EGFR inhibitors. The in vitro anti-breast cancer activity of compounds (5a-o) against MDA-MB-231 and MCF-7 cell lines revealed that five compounds (5e, 5 g, 5j, 5k and 5n) displayed good to remarkable activity against tested cancer cell lines (IC50 = 2.95-12.12 mu M). In specific, compounds 5k and 5n showed higher activity against MCF-7 cell line with IC50 values of 3.18 and 2.95 mu M respectively than the Doxorubicin (DOX) (IC50 = 4.23 mu M). Compound 5 g (IC50 = 4.97 mu M) showed comparable activity against MCF-7 cell line with the DOX. As well, compounds 5 g, 5k and 5n could act as potent in vitro EGFR inhibitors with IC50 values of 0.421, 0.164 and 0.132 mu M respectively as compared to Erlotinib (IC50 = 0.073 mu M). Molecular docking studies revealed the possible binding interactions of compounds 5 g, 5k, 5n and Erlotinib with EGFR (PDB ID 4HJO). Compounds 5 g, 5k and 5n displayed better binding energies and inhibition constants than the Erlotinib. The molecular dynamics simulations revealed that the RMSD plots of the protein 4HJO and compound 5n are significantly matching, with backbone RMSDs remaining stable through a 200 ns simulation period. Finally, compounds 5 g, 5k and 5n followed Lipinski and Veber rules in addition to their high GI and HIA absorptions.

A series of eight coordination polymers incorporating transition metals [M = Co(II), Ni(II), Mn(II), Zn(II), and Cd (II)] were effectively produced via hydrothermal techniques. The primary ligand used in the synthesis was 2amino-[1,1 '-biphenyl]-4,4 '-dicarboxylic acid (H2abda), combined with various auxiliary ligands, including 1,10phenanthroline (phen), 2,2 '-bipyridine (bipy), 2,2 '-biimidazole (H2biim), 1,4-bis(pyrid-4-yl)benzene (bpb), and pyridine (py). This process produced one 1D, one 2D, and six 3D coordination polymers, designated as [Mn(mu 4abda)(H2O)2]n (1), [Mn(mu 4-abda)(phen)]n (2), [Mn(mu 4-adba)(bipy)]n & sdot;nH2O (3), [Cd(mu 3-abda)(bipy)]n (4), [Mn (mu -abda)(H2biim)2]n & sdot;2nH2O (5), [Ni2(mu -abda)(mu 4-abda)(mu -bpb)2(H2O)2]n & sdot;2nH2O (6), [Co2(mu -abda)(mu 4-abda) (mu -bpb)2]n & sdot;nH2O (7), and [Zn4(mu 4-abda)2(mu 3-abda) (mu 3-OH)(mu -OH)(py)2]n (8). These coordination polymers were thoroughly studied to investigate their structural topologies and catalytic efficacy. Coordination polymer 8 exhibited remarkable catalytic efficacy in the Henry reaction involving pyridine-3-aldehyde, achieving high yields under optimized conditions. It demonstrated exceptional stability, effectiveness, and reusability as a heterogeneous catalyst.

In this study, we describe the synthesis of a novel Schiff base ligand, L, by reacting o-dianisidine with 2-thiophene carboxaldehyde in a 1:2 molar ratio in an alcoholic medium. The ligand was structurally analyzed using a variety of analytical and spectroscopic techniques, including elemental analysis, Fourier-transform infrared (FT-IR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and ultraviolet-visible (UV-Vis) spectroscopy, along with single-crystal X-ray crystallography revealing its three-dimensional structure. Furthermore, theoretical studies were conducted to explore the electronic properties of the ligand. Additionally, molecular docking simulations were performed to investigate its potential interactions with three biological targets: 5IKT, 1IYL, and 2V5Z. The binding affinities and interaction patterns of ligand L were compared with those of well-known medicinal drugs, including Ibuprofen, fluconazole (Diflucan), and Vitamin C. These findings indicate that the described ligand demonstrates significant biological activity, suggesting its potential applications in developing anti-inflammatory, antifungal, and antioxidant medications.

Two novel polynuclear complexes [CuL(MeOH)]2Cu (1) and [CuL(OH2)]2Ni (2) were synthesized using a mononuclear copper complex (Na[CuL], where H3L = [N-(2-carboxy-4-fluoro-benzyl)-N-(3-dimethylamino) propyl] oxalamide) as the ligand and characterized by Fourier transform infrared (FTIR) spectroscopy, Mass spectrometry analysis (MS) and X-ray single crystal diffraction techniques. The two complexes have similar structures in which the copper atom in the [CuL(MeOH)] and [CuL(OH2)] moieties is in a square pyramidal environment, while the central Cu or Ni atom is in a square planar environment coordinated by two oxygen atoms from each of two L ligands. In complex 1 the three metal ions are linear, while in complex 2, the Cu...Ni... Cu angle is slightly bent with the terminal Cu...Cu distances being 10.398 & Aring; and 10.345 & Aring;, respectively. Further Cu...O and Ni...O interactions link complex 1 into a 1D polymers and complex 2 into a hexanuclear dimer. The interaction mode between the polynuclear complexes and DNA was studied using electron absorption spectroscopy, fluorescence spectroscopy and viscosity techniques. Furthermore, molecular docking techniques were also used to calculate the interaction strength and modes, and the results showed that the interaction mode was intercalation mode. The MTT results indicated that the complexes could kill MCF7 cells and therefore had certain anti-cancer activity.

A new cadmium(II) complex, abbreviated as [Cd(L1)2(L2)2(H2O)2], was synthesized by reacting 6-phenylpyri-dine-2-carboxylic acid (HL1), 1H-pyrazolo[3,4-b]pyridine-3-amine (L2), sodium hydroxide, and cadmium nitrate tetrahydrate Cd(NO3)2 & sdot;4H2O. The structure of the complex was thoroughly analyzed using elemental analysis, infrared spectroscopy, UV-visible spectroscopy, thermogravimetric analysis, and single-crystal X-ray diffraction. The single-crystal analysis shows that the Cd(II) complex hexacoordinated with two oxygen atoms and two nitrogen atoms from the L1 ligands, along with two nitrogen atoms from the L2 ligands, and thus assume a distorted octahedral geometry. Hirschfeld surface analysis reveals that H & sdot;& sdot;& sdot;H interactions make the most significant contribution to the surface (44.7 %). The luminescent properties of the Cd(II) complex in ethanol revealed a prominent luminescence emission with a peak intensity at 477 nm upon excitation at a wavelength of 373 nm. In addition, the catalytic efficiency of the Cd(II) complex indicated it is an effective catalyst, achieving a moderate yield of 53 % while maintaining good selectivity for the oxidation of benzylic alcohol.