A series of nine mixed-ligand metal-organic frameworks (MOFs) have been prepared by the combination a bent dipyridyl linker 4-amino-3,5-bis(4-pyridyl)-1,2,4-triazole (bpt) and three benzenedicarboxylate isomers (pa = phthalate, ip isophthalate, tp terephthalate), respectively, with different metal ions such as CoII, NiII, CuII, ZnII, CdII. The framework structures these neutral polymeric complexes determined X-ray single-crystal diffraction technique. Structural analysis reveals that display...

Abstract Resourceful and inexpensive seawater direct splitting omits the desalination process effectively increases efficiency of hydrogen energy generation. However, development is hampered by competing selectivity challenges from anodic oxygen evolution reaction (OER) chlorine issues electrode corrosion. Herein, borate anion‐intercalated NiV‐LDH nanoflakes/NiCoP nanowires heterostructures supported on Ni foam (2D/1D NiV‐BLDH/NiCoP/NF) synthesized. Theoretical calculations show that a small...

To systematically explore the higher-dimensional network structures with mixed connectivity, a series of two-dimensional (2D) and three-dimensional (3D) metal-organic frameworks (MOFs) unusual (3,6)-connected net topologies are presented. These crystalline materials include [{[Mn(btza)2(H2O)2].2 H2O}n] (1), [{[Zn(btza)2(H2O)2].2 (2), [{[Cu(btza)2].H2O}n] (3), [{[Cd(btza)2].3 (4), which have been successfully assembled through predesigned three-connected organic component...

The reaction of CuII or CdII acetate with mixed ligands terephthalic (tp) and 3,5-bis(4-pyridyl)-4-amino-1,2,4-triazole (bpt) under the same conditions affords two unusual metal–organic frameworks, in which 1 represents a new type polythreaded supramolecular architecture consisting distinct 1-D 2-D coordination polymers within one crystal, however, 2 has an interpenetrating porous network similar laterally interlocking (4,4) layers.

Four novel mixed-ligand metal−organic frameworks (MOFs), [Zn5(μ3-OH)2(BTA)2(tp)3]n (1), [Zn(BTA)(chdc)0.5]n (2), [Zn(BTA)(ap)0.5]n (3), and [Zn(BTA)(gt)0.5]n (4) (BTAH = benzotriazole, H2tp terephthalic acid, H2chdc 1,4-cyclohexanedicarboxylic H2ap adipic H2gt glutaric acid), have been synthesized by the reaction of zinc(II) chloride BTAH with four different aromatic/aliphatic binary acids under similar hydrothermal conditions. All these compounds are fully structurally characterized...

A series of new metal-organic polymeric complexes, [[Co(bpt)(Htma)(H2O)3].2.25H2O]n (1), [Co(bpt)(Htma)(H2O)]n (2), [Ni(bpt)(Htma)(H2O)]n (3), [Zn(bpt)2(H2tma)2].6H2O (4), [[Cd(bpt)(Htma)(H2O)].(C2H5OH)(H2O)1.5]n (5), and [[Cd(bpt)(Htma)(H2O)2].5.5H2O]n (6), was prepared from solution reactions 4-amino-3,5-bis(4-pyridyl)-1,2,4-triazole (bpt) trimesic acid (H3tma) with different metal salts under diverse conditions. All these compounds were structurally determined by X-ray single-crystal...

A red-emitting layer constructed from {Eu₂Na(CH₃COO)₂} chains and 4,4′-(pyridine-2,6-diyl)dibenzolate linkers exhibits luminescent discriminations for three nitrofuran antibiotics toxic Cr₂O₇²⁻ MnO₄⁻ anions.

The construction of two types coordination polymers with closely related 4-connected topologies [PtS and lvt (4(2).8(4))] were achieved based on a well-designed bent dipyrazine linker, the topological differences only result from stereochemistry silver(I) sphere same donors. Selective anion-exchange functions series PtS-type networks containing different counter anions (from small BF4- to very large SbF6-) identified.

This study was undertaken to quantify the effect of aluminum and calcium on membrane permeability. The influence Ca2+ (0.2-3.7 millimolar) Al3+ (0-3.7 permeability root cortical cells Quercus rubra measured using three nonelectrolytes (urea, methyl urea, ethyl urea) as permeators progressively increasing lipid solubility. Water also measured. (a) increased nonelectrolytes, (b) decreased membrane's partiality for permeators, (c) water. had effects that were opposite those Al3+. When tested in...

A novel 3D lead(II) metal–organic framework {Pb4(Bdc)3(µ4-O)(H2O)}n (1) (H2Bdc = isophthalic acid) with octanuclear [Pb8(Bdc)6(µ4-O)2(H2O)2] as secondary building units (SBUs) has been obtained and fully characterized by single crystal X-ray diffraction, IR, elemental analysis, TG-DTA fluorescent spectra. XRD results indicate SBU contains two inversely related [Pb4(µ4-O)] cores is extended topologically into an infinite eight-connected bcu-type network via twelve Bdc ligands linking eight...

Four novel Zn(II) and Cd(II) metal-organic coordination polymers with a versatile building block 5-(4-pyridyl)-1,3,4-oxadiazole-2-thiol (Hpyt) have been prepared under different conditions. [Zn3(pyt)4(OH)2]n (1) [Cd(pyt)(HCOO)]n (3) were obtained through solvothermal method, whereas {[Zn(pyt)2(H2O)(2)].(DMF)2}n (2) {[Cd(pyt)2].CHCl3}n (4) isolated general X-ray single-crystal diffraction indicates that the anionic ligand pyt adopts thioamide isomer in 1, 2, 4, but thiolate form 3. types of...

A series of nine CoII, CuII, and CdII mixed-ligand coordination complexes with a 3,3′-dipyridyl connector 4-amino-3,5-bis(3-pyridyl)-1,2,4-triazole (3-bpt) have been achieved, by changing the incorporated benzenedicarboxylic co-ligands from isophthalic acid (H2ip) to its 5-substituted derivatives 5-nitroisophthalic (–NO2, H2nip) trimesic (–COOH, H3tma). All compounds structurally determined X-ray diffraction technique. It is indicated that most them are polymers, ligands benzenecarboxylic...

Two 3D coordination polymers with the same components but different structures, [Cu(II)(2)Cu(I)(trz)(3)(Hbtc)](n) (1) and [Cu(4)(Htrz)(2)(mu(3)-OH)(2)(btc)(2)](n) (2), were obtained together by a one-pot hydrothermal reaction of Cu(OAc)(2).H(2)O, 1,2,4-triazole (Htrz), 1,3,5-benzenetricarboxylic acid (H(3)btc). Complex 1 is mixed-valence Cu(I/II) honeycomb built from wavy Cu(II)-trz-carboxylate layers Cu(I) nodes doubly deprotonated Hbtc(2-) ligands covalently filled in channels. In...

This work presents a series of coordination polymers with dipyridyl-type building block bis[3,5-dimethyl-4-(4′-pyridyl)pyrazol-1-yl]methane (pypz) and different anionic co-ligands. The elongated flexible backbone the pypz ligand facilitates formation diverse entangled networks, which are well regulated by auxiliary components. Generally, anions nitrate, chloride, pseudohalide (such as dicyanamide, thiocyanate, azide) display monodentate binding mode in this system serve terminal pendants...

Three new homometallic lanthanide complexes with mixed carboxylate-modified rigid ligands, [Ln(μ3-OH)(na)(pyzc)]n (na– = 1-naphtholate, pyzc– 2-pyrazinecarboxylate, Ln Dy (1), Yb (2), and Gd (3)), were solvothermally synthesized, their structures magnetic as well photophysical properties completely investigated. Complexes 1–3 are crystallographically isostructural, exhibiting linear chains four bidentate bridging μ-COO– moieties encapsulated cubic {Ln4(μ3-OH)4}8+ clusters repeatedly extended...

A bidentate ligand, 1-{4-[4-(1H-1,2,4-triazol-1-yl)phenoxy]phenyl}-1H-1,2,4-triazole (TPPT), has been designed and synthesized. By using TPPT as a building block for self-assembly with Cd(NO3 )2 ⋅4 H2 O CdCl2 ⋅10.5 O, novel 1D double-chain {[Cd(TPPT)(NO3 ]⋅3 O}n (1) 2D (4,4) layer [Cd(TPPT)Cl2 (H2 O)]n (2) have constructed. When 1 was employed precursor exposed to DMF or N,N'-dimethylacetamide (DMAC), the crystals of dissolved reassembled into two types brown block-shaped double chains:...

The peroxidase-like activity of graphitic carbon nitride (g-C₃N₄) is dramatically increased by a small cobalt doping. cobalt-doped g-C₃N₄ was used for wastewater treatment, exhibiting much higher degradation rate than that pure g-C₃N₄.

Metal–organic framework MIL-100(Fe) microcrystals were explored for the selective adsorption of different types dyes from aqueous solution.

A micrometer-sized europium(<sc>iii</sc>)–organic framework with good dispersibility, excellent thermal and environmental stability, easy regeneration ability can serve as a dual-responsive luminescent sensor to probe both Cr₂O₇²⁻ picric acid contaminants in water system.

Highly dispersed Ni nanoparticles within graphitic carbon layers were prepared by facile thermolysis of a Ni-MOF, which exhibited outstanding catalytic performance in the chemoselective hydrogenation diverse functionalized nitro compounds.

A bottom-up strategy was adopted to construct bamboo-like N-doped graphitic CNTs with a few encapsulated Co and VN nanoparticles (namely, NGT-CoV) as an excellent Pt-free ORR electrocatalyst.

A centrosymmetric Dy2 single-molecule magnet (SMM) and its doped diamagnetic yttrium analogues, Dy0.19Y1.81 Dy0.10Y1.90, were solvothermally synthesized to investigate the effects of intramolecular exchange coupling quantum tunneling magnetization (QTM) on magnetic relaxation dynamics. Constructed from two hula-hoop-like DyIII ions a pair phenoxido groups, antiferromagnetically coupled exhibits thermal-activated zero-field effective energy barrier (Ueff) 277.7 K negligible hysteresis loop at...

In this work, BEA-type hierarchically structured stannosilicate zeolite Sn-Beta-H was developed, which involved alkali-induced degradation of all-silica Beta (Si-Beta) and self-assembly the resultant Si-Beta fragments with SnCl2·2H2O in hydrothermal condition templated tetraethylammonium hydroxide (TEAOH) polydiallydimethylammonium chloride (PDADMAC). The synthesized comprehensively characterized by means XRD, N2 physisorption, TEM, UV–vis, XPS, TG, DRIFT, FTIR spectroscopy pyridine...