A multifunctional metal-organic framework, (Hdmbpy)[Dy(H2dobdc)2(H2O)]·3H2O (Dy-MOF, H4dobdc = 2,5-dihydroxyterephthalic acid, dmbpy 4,4'-dimethyl-2,2'-bipyridine), was synthesized and structurally characterized. The metal center DyIII is connected by four carboxyl groups to form the [Dy2(CO2)4] binuclear nodes, which are further interconnected eight separate H2dobdc2- ligands a three-dimensional (3D) framework including hydrophilic triangular channels abundant hydrogen-bonding networks....

A luminescent Tb-MOF with excellent stability and dual-emitting properties was constructed an amide-functionalized tetracarboxylate ligand. Tb-MOFs were initially assembled on one-dimensional Tb3+ chains, then formed a two-dimensional double-decker layer through the synergistic linking of organic ligands bridging formic acid anions, further fabricated final three-dimensional structure connection ligands. Powder X-ray diffraction experiments revealed that not only exhibited in water but also...

Two ternary copper(II) complexes [Cu(L1)(py)] (1) and [Cu(L2)(Himdz] · CH3OH (2) with substituted aroylhydrazones, 5-bromo-salicylaldehyde-3,5-dimethoxy-benzoylhydrazone (H2L1) 5-bromo-salicylaldehyde-p-methyl-benzoylhydrazone (H2L2), pyridine (py) imidazole (Himdz), have been synthesized. Their crystal structures spectroscopic properties studied. In each complex, the metal is in a square-planar N2O2 coordination formed by phenolate-O, imine-N deprotonated amide-O atoms of L2−, sp2 N atom...

Functionalized crystalline solids based on metal-organic frameworks (MOFs) enable efficient luminescence detection and high proton conductivity, making them crucial in the realms of environmental monitoring clean energy. Here, two structurally functionally distinct zinc-based MOFs, [Zn(TTDPa)(bodca)]·H2O (1) [Zn(TTDPb)(bodca)]·H2O (2), were successfully designed synthesized using 3,6-di(pyridin-4-yl)thieno[3,2-b]thiophene (TTDPa) 2,5-di(pyridin-4-yl)thieno[3,2-b]thiophene (TTDPb) as ligands,...

Two amide groups functionalized anionic indium–organic frameworks demonstrated efficient separation of organic dyes based on diverse adsorption interactions, and can be potentially applicable in column-chromatographic dyes.

Abstract A metal‐free radical multicomponent bicyclization of heteroatom‐linked 1,7‐diynes with aryl diazonium tetrafluoroborates and DABCO‐bis(sulfurdioxide) (DABSO) is reported, enabling annulative SO 2 insertion access to produce two types skeletally diverse tricyclic sulfones, namely, thieno[3,4‐ c ]quinoline 2,2‐dioxides ]chromene 2,2‐dioxides, moderate good yields by simply tuning the linkers 1,7‐diynes. This protocol demonstrates remarkable compatibility regarding N ‐ O ‐linked...

Solvothermal reaction of 3,5-di(pyridin-4-yl) benzoic acid (HDPB) with Co(II) leads to a novel metal–organic framework, [Co2O(DPB)2(DMF)2]·xS (1), which represents rare reo-type net trigonal prismatic cobalt dimer, [Co2O(CO2)2N4], as building blocks construct 3D framework containing three different types nanoscale M12L12 and M24L12 polyhedron cages. More interestingly, under the same condition, assembly 4-methyl-3,5-di(pyridin-4-yl) (HMDPB) facilitates formation cationic...

Based on a layered Zn-MOF (1 ⊃NO 3 − ), anion-dependent dynamic structure and tunable luminescence were demonstrated by SC–SC transformation with free NO exchanged ClO 4 or BF , coordinated Cl to give 3D structure.

A palladium-catalyzed asymmetric annulative dearomatization of phenols with butene dicarbonate is reported, enabling twofold decarboxylative allylation to regioselectively produce a range spirocyclohexadienones 29-95% yields and 74-99% ee. catalytic dearomative formal [4 + 2] cyclization 1,1'-biphenyl-2,4'-diols delivered spiro[chromane-4,1'-cyclohexane]-2',5'-dien-4'-ones high enantioselectivity, whereas enantioenriched spiro[cyclohexane-1,4'-quinoline]-2,5-dien-4-ones were generated...

Self-assembly of two Zn-MOFs, [Zn2L(DMF)3]·H2O·5DMF (1) and [Zn2L(H2O)2]·4H2O·3DMF (2), was achieved with an amide-functionalized tetracarboxylate ligand under similar conditions. Incorporated amide groups make the tetratopic linkers exhibit different configurations, tetrahedron square, subsequently combine tetrahedral [Zn2(CO2)4] clusters or square paddle-well to afford a lon net for 1 nbo 2. Remarkably, 2 demonstrated high porosity group decorated cages, thereby proved be good capturing...

A series of novel 2,4,6-triphenylpyridine derivatives containing 1,8-naphthalimide groups have been prepared. The relationship photoluminescence property the products and theoretical calculation analysis were investigated.

Three novel fluoranthene dyes were obtained by cycloaddition reactions using acrylonitrile and dialkyl acetylenedicarboxylates. Their fluorescence properties in different polar-organic solvents investigated systematically. Meanwhile, spectral changes induced the addition of water methanol observed, indicating that these fluoranthenes can be efficiently used to detect content as probes. Significantly, practical test measurements for contents illustrated measured results with three fluorescent...

A tetranuclear copper(II) complex, [Cu4(L)4]·(NMP), with a tridentate Schiff-base ligand has been synthesized and its crystal structure, spectroscopic properties studied (H2L = salicylidene-2-aminobenzoic alcohol, NMP N-methylpyrrole). The complex crystallizes in the monoclinic, space group C2/c, 21.461(5), b 12.231(3), c 19.898(5) Å, β 96.402(4)°, V 5190(2) Å3, Z 4, R 1 0.0589. is centrosymmetric structure can be visualized as pseudo-double cubane, where both cubes share common face each...

Abstract A simple, efficient, and general method has been developed for the synthesis of coumarin derivatives through a one‐pot reaction aromatic aldehydes, 2,2‐dimethyl‐1,3‐dioxane‐4,6‐dione 5,5‐dimethyl‐1,3‐cyclohexanedione, in presence TEBA under solvent‐free conditions using grinding methods. The mild conditions, simple protocol, high yields, cleaner make this protocol practical economically attractive.

When the reaction of zinc nitrate with 4',4‴,4‴″,4‴‴'-(ethene-1,1,2,2-tetrayl)tetrakis[(1,1'-biphenyl-3-carboxylic acid)] (H4tmpe) in dimethylformamide (DMF) under hydrothermal condition is performed air or carbon dioxide (CO2), [Zn4(tmpe)2(H2O)2(μ2-CO2)]·8DMF·18H2O (1) crystallizes out. However, if it dioxygen, argon, monoxide, [Zn2(tmpe)(DMF)]·2DMF·8H2O (2) product. Both compounds are chemically stable coordination polymers. 1 contains carboxylate paddlewheels as nodes linearly bridged by...