A twist to the right, or left: Both enantiomers of a new chiral material were synthesized by rational approach, using enantiopure proline ligands, copper cations, and Keggin polyoxometalate anions as building blocks. The compounds have open-framework structures containing helical channels. Supporting information for this article is available on WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z503657_s.pdf from author. Please note: publisher not responsible content functionality any...

Here, we discovered that rigidifying the tetraphenylethylene (TPE)-based ligand H4TCBPE (H4TCBPE = 1,1,2,2-tetra(4-carboxylbiphenyl)ethylene) into Hf-based metal-organic framework (Hf-TCBPE) could lead to a stronger electrochemiluminescence (ECL) emission in comparison aggregates and monomers. Due lack of close-packed TCBPE chromophores Hf-TCBPE, which was required for aggregation-induced ECL (AI-ECL) enhancement, defined this unprecedented phenomenon as matrix coordination-induced (MCI-ECL)...

Rational self-assembly of a long V-shaped 3,3',4,4'-benzophenonetetracarboxylate (bptc) ligand and metal salts in the presence linear bidentate yield series novel pillared helical-layer complexes, namely, [Cu2(bptc)(bpy)2] (1), [M3(Hbptc)2(bpy)3(H2O)4].2 H2O (M = Fe(2) Ni(3)), [Co2(bptc)(bpy)(H2O)].0.5 bpy (4), [Cd2(bptc)(bpy)(H2O)2].H2O (5), [Mn2(bptc)(bpy)1.5(H2O)3] (6) [M2(bptc)(bpy)0.5(H2O)5].0.5 Mn(7), Mg(8) Co(9), bpy=4,4'-bipyridine). Their structures were determined by single-crystal...

Three unusual compounds based on polyoxometalate building blocks, [(H2O)5Na2(C6NO2H4)(C6NO2H5)3Ag2][Ag2IMo6O24(H2O)4]·6.25H2O (1), [(H2O)4Na2(C6NO2H5)6Ag3][IMo6O24]·6H2O (2), and (C6NO2H6)2[(C6NO2H5)2Ag][Cr(OH)6Mo6O18]·4H2O (3), have been synthesized characterized by elemental analysis; IR, XPS, ESR spectroscopy; TG single-crystal X-ray diffraction. Compound 1 is constructed from the cationic two-dimensional (2D) coordination polymer sheets which are constituted of...

Self-assembly of long V-shaped ligands and d10 metal salts in the presence a linear bidentate ligand affords two unprecedented self-penetrating coordination networks {[Zn4(bptc)2(bpy)4].(C5H3N).4H2O}n (1) {[Cd2(sdba)2(bpy)(H2O)2].2H2O}n (2) (bptc = 3,3',4,4'-benzophenonetetracarboxylate, sdba 4,4'-sulfonyldibenzoate, bpy 4,4'-bipyridine). Their structures were determined by single-crystal X-ray diffraction analyses further characterized elemental analyses, IR spectra, powder diffraction, TG...

In this work, a novel mesoporous luminescence-functionalized metal-organic framework (Ru-PCN-777) with high stability and excellent electrochemiluminescence (ECL) performance was synthesized by immobilizing Ru(bpy)2(mcpbpy)2+ on the Zr6 cluster of PCN-777 via strong coordination bond between Zr4+ -COO-. Consequently, could not only cover surface but also graft into interior PCN-777, which greatly increased loading amount effectively prevented leaching resulting in stable ECL response....

Abstract Studying inter‐dimensional phase transitions of zeolitic‐imidazolate frameworks (ZIFs) is essential for developing strategies in controlling morphology and properties. Herein, the topotactic transformations 3D ZIF‐67 to 2D ZIF‐L are investigated detail by employing a simple efficient solvent‐induced growth method. In addition ZIF‐L, series novel core–shell composites ZIF‐67@ZIF‐L, with unprecedented morphologies, also obtained well‐defined. The different behaviors amine hydrogen...

A pyrene-based sp2 carbon-conjugated covalent organic framework (COF) nanosheet (Py-sp2c-CON) with strong and stable electrochemiluminescence (ECL) emission was constructed by C═C polycondensation of tetrakis(4-formylphenyl)pyrene (TFPPy) 2,2′-(1,4-phenylene)diacetonitrile, which employed as a highly efficient ECL emitter to fabricate an biosensor for the first time. The Py-sp2c-CON exhibited higher intensity efficiency than those TFPPy, bulk Py-sp2c-COF, imine-linked pyrene COF, not only...

In this work, a new strategy was developed to construct high-performance electrochemiluminescent materials by using AIEgen-based ultrathin metal–organic layer enhance electrochemiluminescence intensity and efficiency.

Polycyclic aromatic hydrocarbons (PAHs) as traditional electrochemiluminescence (ECL) luminophores have been widely applied in the analysis field. However, their ECL intensity and efficiency are still limited due to aggregation-induced quenching (ACQ) effect of PAHs. Hence, overcome this limitation, we put forward a new strategy increase by eliminating ACQ PAHs through coordinative immobilization within metal-organic frameworks (MOFs). As anticipated, proof-of-concept experiment indicated...

Metal–organic frameworks (MOFs) with porous structures exhibit favorable promise in synthesizing high-performance electrochemiluminescence (ECL) materials, yet their micropores and narrow channels not only restrict the loading capacity of ECL luminophores but also constrain diffusion coreactants, ions, electrons. Hence, we developed a new simple hydrothermal etching strategy for fabrication hollow hierarchical MOF (HH-UiO-66-NH2) hierarchical-pore shell, which was employed as carrier to...

Covalent organic frameworks (COFs) have attracted widespread attention in the electrochemiluminescence (ECL) field owing to their high load capacity of ECL luminophores and porous structures, but performance is still limited by intrinsic poor conductivity (generally <10–8 S m–1). To address this shortcoming, we used 2,3,6,7,10,11-hexaaminotriphenylene (HATP) 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) synthesize a conductive COF (HHTP-HATP-COF, = 3.11 × 10–4 Compared with HATP, HHTP,...

Exploring new electrochemiluminescence (ECL) luminophores with strong ECL emission is highly desirable for developing ultrasensitive sensors. Herein, a pyrene-based hydrogen-bonded organic framework (Py-HOF) featuring prominent performance was prepared by utilizing 1,3,6,8-tetrakis(p-benzoic acid) pyrene (H4TBAPy) an aggregation-induced enhanced (AIEE) property as building block, exhibiting stronger than those of H4TBAPy monomers, aggregates, the low-porosity Py-HOF-210 °C and Py-HOF-180 °C....

An unprecedented microporous lanthanum polymolybdate, [{La(H2O)5(dipic)}{La(H2O)(dipic)}]2{Mo8O26}·10H2O (H2dipic = pyridine-2,6-dicarboxylic acid) 1, which is constructed from lanthanum−organic coordination polymer sheets pillared by individual octamolybdate clusters, reported.

Abstract Reactions of the antimicrobial fluoroquinolone ciprofloxacin (cfH) with metal salts in presence aromatic polycarboxylate ligands or under basic conditions produce fourteen new metal–cfH complexes, namely, [Ba 2 (cf) (1,4‐bdc)(H O) ]⋅H O ( 1 ), [Sr 6 (1,4‐bdc) 3 (H ]⋅2 H [M (bptc)(H ]⋅8 (M = Mn( 3) and Cd( 4 )), [M(cfH)(1,3‐bdc)] 5 Co( Zn( 7 [Zn (1,4‐bdc)](1,4‐bdc)⋅13 8 [Ca(cfH) (1,2‐Hbdc) 9 ) [M(cf) ]⋅2.5 10 11 12 13 Mg( 14 )) (1,4‐bdc 1,4‐benzenedicarboxylate, bptc...

Three unusual compounds based on polyoxometalate building blocks, [(C6H5NO2)2Ln(H2O)4]2[IMo6O24][NO3]·4H2O (Ln = Ce 1 and La 2) [(H2O)4Ag3][Cr(OH)6Mo6O18]·3H2O 3, have been synthesized characterized by elemental analysis, IR X-ray photoelectron spectroscopy, thermogravimetry single-crystal diffraction. Compounds 2 are isostructural possess a unique two-dimensional (2D) network, which is composed of rare earth coordination polymer chains joint together [IMo6O24]5- polyoxoanions, representing...

Self-assemblies of the fluoroquinolone ciprofloxacin (cfH) and zinc salt in presence V-shaped polycarboxylate ligands yielded three unprecedented helical metal−cfH complexes, namely, [Zn(cfH)(Hbtc)]·H2O (1), [Zn2(cfH)2(odpa)] (2), [Zn2(cfH)2(bptc)]·4H2O (3) (btc = 1,3,5-benzenetricarboxylate, odpa 4,4'-oxydiphthalate, bptc 3,3',4,4'-benzophenonetetracarboxylate). Their structures were determined by single-crystal X-ray diffraction analyses further characterized elemental analyses, IR...

Two-dimensional (2D) nanosheets have captured significant attention in constructing highly efficient electrochemiluminescent (ECL) materials because their high surface area and fully exposed postmodification sites could greatly increase the loading amount of luminophores. However, traditional 2D as carriers exhibited natively poor electrical conductivity that restricted electrochemical activation utilization ratio ECL Herein, to overcome this drawback, we utilized conductive Ti3C2Tx MXene...

The first Ru-complex-based metal-covalent organic framework (Ru-MCOF) with excellent ECL performance has been constructed using Ru(dcbpy) 3 2+ as the building block, enriching MCOFs family and expanding application of in field.

By synthesizing the novel molybdenum arsenate complexes, we have obtained eight new structures, namely, (4,4'-bipy)[Zn(4,4'-bipy)2(H2O)2]2[(ZnO6)(AsIII3O3)2Mo6O18]·7H2O, 1, [Zn(phen)2(H2O)]2[(ZnO6)(AsIII3O3)2Mo6O18]·4H2O, 2, [Zn(2,2'-bipy)2(H2O)]2[(ZnO6)(AsIII3O3)2Mo6O18]·4H2O, 3, [Zn(H4,4'-bipy)2(H2O)4][(ZnO6)(AsIII3O3)2Mo6O18]·8H2O, 4, (H24,4'-bipy)[CuI(4,4'-bipy)]2[H2AsV2Mo6O26]·H2O, 5, (H24,4'-bipy)3[AsV2Mo6O26]·4H2O, 6, (H24,4'-bipy)3[AsV2Mo6O26(H2O)]·4H2O, 7, and...