The cover image is based on the Full Paper Loading of ZIF-67 on silk with sustained release of iodine as biocompatible antibacterial fibers by Donya Mohammadi Amidi et al., https://doi.org/10.1002/aoc.6913.

The cover image is based on the Full Paper A detailed experimental and computational study of Cd complexes with pyridyl-based thiazolyl hydrazones by Sanja B. Kokanov et al., https://doi.org/10.1002/aoc.6942.

Synthesis of novel N-sulfonic acid modified poly (styrene-diethylenetriamin) has been presented. An efficient acid-catalyzed synthesis of 1,5-diaryl-3-(arylamino)-1H-pyrrol-2(5H)-ones is reported. The structure of the catalyst was confirmed with FT-IR, XRD, TGA, DTA, SEM, DLS, EDS mapping, BET, and elemental analyses.

The degradation effect of the (NaH₂PH) ligand and its isolated complexes on the genomic DNA, (a) Escherichia coli DNA, (b) E. Coli DNA + DMSO, (c) (NaH₂PH) ligand, (d) Co (II) complex, (e) Fe (III) complex, (f) Hg (II) complex and (g) Pd (II) complex.

ZIF-67 was synthesized using a LBL method on silk fibers with (ZIF-67@silk [U]) and without (ZIF-67@silk [B]) ultrasonic irradiation, and iodine was loaded on ZIF-67@silk samples and evaluated as antibacterial fibers with iodine release. The antibacterial activity was evaluated on E. coli and S. aureus bacteria, and iodine-containing samples have better activity than iodine-free samples. The excellent antibacterial performance of the I₂@ZIF-67@silk fibers is attributed to the synergistic effects of extremely effective antibacterial ZIF-67 particles and iodine on the fiber surface.

A new pyrimidine-based flexible organometallic clip (3) was synthesized, which was further used as an acceptor tecton to yield three neutral (M₁–M₃) and two ionic (M₄ and M₅) [2 + 2] metallomacrocycles. Theoretical calculations were invoked to explain stability of the complexes. Antiproliferative activities of macrocycles were superior with respect to cisplatin against A549 lung cancer cells.

Two 2-D and 3-D complexes [Zn(L)₂·(NO₃)₂] (1), [Ni(L)₂·2H₂O]·2CH₃OH·(NO₃)₂ (2) originated from the new ligand L were characterized by the analysis methods with FT-IR, UV-vis, and fluorescence spectroscopy. Both complexes have been measured by single-crystal X-ray diffraction, as well as HSA, ESP, and TD/DFT calculations. The qualitative analysis of antibacterial efficiency was also compared.

Two complexes based on 4,4′-[1,3-phenylenebis(oxy)]diphthalic acid (H₄L) ligands were synthesized, namely, [Cd₂(L)(1,10-phen)₂(H₂O)]_n(1) and [Co₂(L)(1,10-phen)₂(H₂O)]_n(2). In these two complexes, 2D structures transform to 3D supramolecular structures by CH···π interaction. These two complexes show different conduction mechanisms in the proton conduction test, complex 1 shows the Vehicular mechanism and complex 2 shows the Grotthuss mechanism. The minimum inhibitory concentrations (MICs) results showed that all five kinds of bacteria (Escherichia coli, Bacillus amyloliquefaciens, Pantoea agglomerans, Pseudomonas putida, and Pectobacterium carotovora) could play an obvious inhibitory effect in the concentration range of 20 μg·ml⁻¹.

Bimetallic palladium(II) complexes containing classical bis-NHC donor ligand are presented. The complex composed of mixed NHC/PPh₃ donor ligands shows superior catalytic activity compared with the corresponding PEPPSI type complexes when applied in α-arylation of oxindole. The preliminary electrochemical measurements show the facile oxidation of Pd^II in the presence of combined NHC/PPh₃ ligands compared with a combination of NHC/Py ligands.

We demonstrated that Au chlorophenyl terpyridine complex possess significant in vitro cytotoxic activity against human oral squamous carcinoma cells (CAL-27), induced apoptosis, inhibited proliferation of CAL-27 cells, and induced cell cycle disturbance.

Controlling the Au:Ag ratio in organometallic metallopolymers allows tuning the emission energies. These materials also display site-selective and thermochromic emissions.

The manganese complexes of N-methylated meso-tetra(2-, 3-, or 4-pyridyl)porphyrins, immobilized into the pores of nano-structured mesoporous amberlyst 15 were synthesized and used as catalysts for aqueous oxidation of olefins. Due to the high oxidative stability of the catalysts brought about by the polymer, the epoxide ring opening reaction was found to be an important competing reaction, which remarkably lowers the yield of epoxide, in long reaction times.

The reaction between 4-tpt and Cu(hfa)₂ yields two different 1D MOFs: [(Cu(hfa)₂)₂(4-tpt)]_n (1) and [Cu(hfa)₂(4-tpt)]_n (2), as a function of the solvent used. The crystal structure of (2) indicates that the packing of the chains defines accessible channels. The microporous character of (2) is confirmed by N₂ physisorption, with a surface area of 190 m² g⁻¹. Compound (2) clearly shows a significant adsorption of CO₂ a 273 K prompted by noncoordinated nitrogen in the triazine linker.

GO/Fe₃O₄/CuL nanocomposites were synthesized and characterized using FT-IR, TG-DTG, SEM, FT-IR, VSM, EDS, and XRD. 2-Amino-4Hbenzo[h]chromenes were prepared through one-pot multicomponent reactionsin the present of GO/Fe3O4/CuL as nanocatalyst. Also, the synthesized nanocomposite indicated efficient catalytic activity in the reduction of 4-nitrophenol, Congo red, and methylene blue in aqueous solution.

Two series of binuclear Ln complexes were obtained, the single-molecule magnets of Dy-based complexes and magneto-thermometric effects of Gd-based were also investigated.

Silicalite-1 encapsulated ultra-small PtNix bimetallic catalyst were prepared. Porphyrin ligands act as protective agents to aid in metal dispersion. Sub-nanometer PtNix bimetals are uniformly encapsulated in the zeolite channels. Metal-zeolite interfacial interactions are enhanced due to the addition of ligand. The synergistic effect of the alloy enhances the catalytic activity.

Magnetic photocatalyst was designed that showed tremendous degradation efficiency towards a hazardous dye and a persistent pollutant using energy-efficient LEDs. The designed catalyst could be easily separated from the reaction mixture and reused up to five runs, making it economic, green and sustainable.

Two neutral Cd(II) complexes with pyridine-based thiazolyl hydrazones showed potent antioxidant capacity and higher antimicrobial activity than standard antibiotics. Electrochemical behaviour indicates their possible functionality for anionic electrochromic applications.

A facile wet-chemical protocol for the synthesis of bimetallic CuPd alloy nanoparticles (NPs) anchored on mesoporous graphitic carbon nitride (m-gCN), serving as both stabilizer and support material, was developed. The yielded CuPd/m-gCN nanocatalysts were utilized as catalysts in the dehydrogenation of terpenes for the first time. Under the optimized reaction conditions, the Cu₅₀Pd₅₀/m-gCN nanocatalysts were applied over nine different terpenes and the corresponding products were obtained in high conversion yields (>90%) under mild conditions.

A series of known and new bimetallic ferrocene-gold carbene complexes was synthesized and tested for antiparasitic activity, which depends on the chlorido and phosphino ligand systems used for complex preparation.

The recent progress in the fabrication of nanocatalysts and their applications in the construction of carbon-nitrogen bonds via cross-coupling reactions are described.

This review focuses on use of 1,2,3-triazole-linked sensors, synthesized by CuAAC, for ion sensing via absorption and fluorescence spectroscopy. In addition to it, it apprehends the different techniques and sensing mechanisms involved in the detection of ions by chemosensor probe including the choice of solvent system and detection limit for ion sensing.

The present review focuses on the advances in the direct selective oxygenation of C(sp³)–H groups of organic molecules, catalyzed by nickel and palladium complexes. Correlations between the metal complex structure, steric and electronic properties of the ligands, catalytic conditions, and the efficiency and selectivity of catalytic oxygenation reactions are discussed.

This review article highlights the recent development on the sensing of environmental pollutants using coordination polymers as selective and specific sensors by optical method.