Salen-type base-metal copper(II) complexes derived from unsymmetrical Schiff ligands were designed and synthesized by ligands L1H to L4H in moderate yields. Synthesized unsymmetrical ligands L1H to L4H and corresponding copper...

A series of new unsymmetrical (XYC–1 type) palladacycles (C1–C4) were designed and synthesized with simple anchoring ligands L1–4H (L1H = 2‐((2‐(4‐methoxybenzylidene)‐1‐phenylhydrazinyl)methyl)pyridine, L2H = N,N‐dimethyl‐4‐((2‐phenyl‐2‐(pyridin‐2‐ylmethyl)hydrazono)methyl)aniline, L3H = N,N‐diethyl‐4‐((2‐phenyl‐2‐(pyridin‐2‐ylmethyl)hydrazono)methyl) aniline and L4H = 4‐(4‐((2‐phenyl‐2‐(pyridin‐2‐ylmethyl)hydrazono) methyl)phenyl)morpholine H = dissociable proton). Molecular structure of catalysts (C1–C4) were further established by single X‐ray crystallographic studies. The catalytic performance of palladacycles (C1–C4) was explored with the direct Csp2–H arylation of imidazoles with aryl halide derivatives. These palladacycles were also applied for investigating of Mizoroki–Heck reactions with aryl halides and acrylate derivatives. During catalytic cycle in situ generated Pd(0) nanoparticles were characterized by XPS, SEM and TEM analysis and possible reaction pathways were proposed. The catalyst was employed as a pre‐catalyst for the gram‐scale synthesis of octinoxate, which is utilized as a UV‐B sunscreen agent.

A family of Cu(I) complexes [Cu(L1-4)(Cl)(PPh3)] (C1-C4) were synthesized from bidentate ligands L1-L4 (where L1= (E)-2-(2-benzylidene-1-phenylhydrazinyl)pyridine, L2= (E)-N,N-dimethyl-4-((2-phenyl-2-(pyridin-2-yl)hydrazono)methyl)aniline, L3= (E)-2-(2-(4-chlorobenzylidene)-1-phenylhydrazinyl)pyridine and L4= (E)-2-(2-(4-nitrobenzylidene)-1-phenylhydrazinyl )pyridine) and characterized. The structure of complex...

Various metal–organic frameworks of Zn(ii) and Cd(ii) have been synthesized hydrothermally for the detection of herbicide (simazine) as well as nitro-aromatic compounds. Also these MOFs show live-cell imaging for MCF-7 cells.

The MOFs were constructed by ligand AHP and sulfonate analogues. MOF4 exhibits a high proton conductivity of 1.95 × 10−3 S cm−1 at 95 °C and 98% relative humidity. MOFs 1–5 also serve as photocatalysts for methylene blue degradation.