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[Display omitted] • N-containing porous aromatic frameworks with superior stability. • High iodine adsorption capability through chemical adsorption. • Uniform distribution of nitrogen within the framework. In view of the excellent stability, ultra-high specific surface area, and structural versatility, porous aromatic frameworks (PAFs) have shown promising potential in gaseous iodine adsorption. Herein, PAF-1 and PAF-5 were synthesized with high specific surface areas. Amino groups as effective binding sites were introduced to these frameworks through post-modification, which facilitated a shift from simple physical adsorption of iodine vapor to a more robust chemical adsorption process. Meanwhile, PAF-6 was synthesized from nitrogen-rich monomers to demonstrate the role of N-binding site in iodine adsorption. PAF-6 exhibited the highest iodine adsorption capacity, verifying the critical role of N-adsorption active sites. The in situ synthesis of nitrogen-rich porous material show advantages over post-modification in creating effective iodine adsorbents. This work highlights the potential of PAFs as a promising material for the adsorption and fixation of radioactive iodine. [ABSTRACT FROM AUTHOR]

An intercalation compound of molybdenum oxide with pyridine and water (Mo 8 O 24 )·(py)·2H 2 O( 1 ) was synthesized hydrothermally and its structure and component were determined by element analysis, IR spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and single-crystal X-ray diffraction. The electrochemistry property and photocatalytic property were studied. The single-crystal structural analysis indicates that the molybdenum oxide has stair-like layer structure and the pyridine and water molecules intercalated in between the layers. Rare earth ions played an induced role to the formation of the compound. The compound exhibited a good catalytic activity to the photodegradation of methylene blue. [ABSTRACT FROM AUTHOR]

Herein, we utilized a bi-connected TDC ligands as bridging ligand to successfully build one new type of pillared-layer MOF, namely as Zn 3 (TDC) 4 ·2DMA, in which the TDC ligands act as bridging group both in and between Zn 3 (TDC) 2 layer. The existence of appropriate one-dimensional channel in this pillared-layer framework thereby give rise to the adsorption capacity for various hydrocarbon gas molecules and Fe3+ ion selective fluorescence detection. [Display omitted] • One new pillared-layer MOF is constructed by Zn 3 (TDC) 2 layer and TDC ligand. • This MOF displays gas adsorption and selectivity properties for hydrocarbons. • This compound displays exclusive luminescent sense detection for Fe3+ ion. Herein, based on single organic ligand as bridging linker and metal trimer as structural nodes, one new pillared-layer metal–organic framework (MOF), Zn 3 (TDC) 4 ·2DMA (TDC = 2,5-Thiophenedicarboxylic acid, DMA = dimethylamine), has been synthesized and structurally characterized. The pillared-layer architecture is formed by Zn 3 (TDC) 2 layer and pillared TDC ligand where TDC ligand acts as a bifunctional linker. Porous structure of MOF was investigated with potential applications in gas molecule adsorption and metal ion fluorescence sensor. [ABSTRACT FROM AUTHOR]

Abstract A novel Cu(I)-cluster based coordination compound formulated as {(Cu 2 I 2) 2 [Cu 6 (dmpymt) 6 ]} n (Hdmpymt = 4,6-dimethylpyrimidine-2-thione) was synthesized under solvo-thermal condition and characterized by single-crystal X ray diffraction, elemental analysis, IR spectroscopy, thermal analysis, and powder X-ray diffraction. Compound 1 is an infinite 3D structure composed of Cu 2 I 2 and Cu 6 S 6 binary Cu(I) clusters with 66 topology, and displays high thermal stability and good solvent stability. Fluorescence experiments illustrate that compound 1 displays apparently red luminescence emission and selectively turn-off fluorescence response for CrO 4 2− and Cr 2 O 7 2− in water, showing potential luminescent probes for detecting Cr(VI) ions. Graphical abstract A novel binary Cu 2 I 2 and Cu 6 S 6 cluster-based fluorescent compound with red emission displays selectively turn-off fluorescence response for CrO 4 2− and Cr 2 O 7 2− in water. Unlabelled Image Highlights • A novel binary Cu 2 I 2 and Cu 6 S 6 cluster-based compound was obtained. • Compound 1 displays high thermal stability and good solvent stability. • Compound 1 displays apparently red luminescence emission. • Compound 1 displays selectively turn-off fluorescence response for Cr(VI). [ABSTRACT FROM AUTHOR]

The core-shell heterostructures of [(CH 3 ) 2 NH 2 ][Mn(HCOO) 3 ]@ [(CH 3 ) 2 NH 2 ][Co(HCOO) 3 ] and [(CH 3 ) 2 NH 2 ][Mn(HCOO) 3 ]@[(CH 3 ) 2 NH 2 ][Ni(HCOO) 3 ] were prepared via epitaxial growth. The obtained heterostructural crystals were characterized by single-crystal and powder X-ray diffraction analysis, and energy dispersive spectrometer (EDS) elemental mappings. Investigation on the differential scanning calorimetry (DSC) of the heterostructural crystals with different mole ratio of the core to shell indicates that the plot of DSC peak area versus mole ratio of core to shell exhibits a linear relationship. Thus, to an unknown heterostructural compounds with distinct phase transition, the mole ratio of core to shell can be easily obtained just by measuring their DSC data. [ABSTRACT FROM AUTHOR]

New 2D perovskites contain special 2D layers formed by the mix of corner- and edge- shared with [PbX 6 ] octahedrons, and display the broadband yellow-light emissions covering the whole visible region. [Display omitted] • New 2D perovskites composed of mixed corner- and edge-shared octahedron. • Broadband emission covering the whole entire visible light. • These 2D perovskites can be fabricated as white LEDs with high CRI. Herein, we reported two new 2D perovskites of [DAPMA] 2 Pb 3 X 12 ·2H 2 O (X = Cl (1), Br (2), DAPMA = N,N-Bis(3-aminopropyl)methylamine) containing special 2D [Pb 3 X 12 ]6− layers formed by mixed corner- and edge-shared [PbX 6 ] octahedrons. Both compounds 1 and 2 exhibit broadband yellow light emissions with promising photoluminescence quantum yields of 4.84% and 3.02%, respectively. According to detailed spectroscopy characterizations, the broadband light emissions should originate from self-trapped excitons (STEs). In addition, these 2D perovskites can be fabricated as white LEDs with highest color rendering index of 96.3%. This work provides a new type of structural model to probe into the relationship between luminescence behavior and structure. [ABSTRACT FROM AUTHOR]

Reaction of Ni II acetate and 4-methylphthalic acid (H 2 mph) with 1,2-bis(4-pyridyl)ethane (bpa) or 1,2-bis(4-pyridyl)ethene (bpe) affords two 3-D unusual metal–organic frameworks {[Ni(Hmph) 2 (bpa)(H 2 O) 2 ][Ni 2 (mph) 2 (bpa) 3 ]} n ( 1 ) and [Ni 2 (mph) 2 (bpe) 2 (H 2 O) 3 ] n ( 2 ). 1 represents a polythreaded supramolecular architecture consisting of distinct 1-D armed chains and 2-D sql sheets based on the binuclear [Ni 2 (mph) 2 ] units, however, 2 shows a rare 3-fold interpenetrating 10 3 -ths network. [ABSTRACT FROM AUTHOR]

A series of BiYO 3 and rare earth doped BiYO 3 nanotubes have been fabricated through a simple and economical electrospinning technique with subsequent calcination for the first time. The average diameter of the nanotube was approximately 200 nm. It is found that the Nd-doped BiYO 3 nanotubes exhibit an excellent multi-functionality of catalytic and visible-light-driven photocatalytic activities, thus the reduction of 4-Nitrophenol and degradation of Congo red can be rapidly achieved. The enhanced activity was attributed to the one-dimensional tube-like architecture, relatively appropriate band gap and Nd doping, which could be favorable for light harvesting, matter diffusion, and carrier transfer. This work may raise more detail research of BiYO 3 and also broaden its application in many fields. 1D Nd-doped BiYO 3 nanotubes by electrospinning exhibit enhanced multi-functionality of catalytic and visible-light-driven photocatalytic activities in the reduction of 4-Nitrophenol and degradation of Congo red. Unlabelled Image • Nd-doped BiYO 3 nanotubes have been fabricated via an electrospinning technique. • Nd-doped BiYO 3 nanotubes exhibit an excellent catalytic and photocatalytic activities. • The electroconductivity was improved by the Nd element doping. • The channels in nanotubes could serve as light and matter transfer paths. [ABSTRACT FROM AUTHOR]

Abstract Two new 3D isostructural MOFs, [M(ddbp) 0.5 (4,4′-biby) 0.5 (H 2 O) 2 ](M = Co/Ni, H 4 ddbp = 1, 3-di (3′,5′-dicarboxylphenyl)benzene, 4,4′-biby = 4,4-bipyridine) with four-fold poly-rotaxane-like networks, have been successfully synthesized and characterized. The hydrogen evolution reaction of two complexes has also been investigated. Notably, Co-MOF has better HER performance with a smaller overpotential of 357 mV at 10 mA·cm−2, lower Tafel slope of 107 mV·dec−1. Graphical abstract Two nevol 3D isostructural Co/Ni-MOF present infrequent four-fold polyrotaxane-like networks with a new (3, 4)-connected net. The electrocatalytic results demonstrate that Co-MOF exhibits better HER performance with a smaller overpotential and lower Tafel slope. Unlabelled Image Highlights • Two new 3D isostructural Co/Ni-MOFs with infrequent four-fold polyrotaxane-like networks have been synthesized. • The HER reaction kinetics of Co-MOF catalyst is more favorable than Ni-MOF. • Co-MOF exhibits better HER performance with a low overpotential and a small Tafel slope. [ABSTRACT FROM AUTHOR]

A new 2D MOF with unique [Co 5 (μ 3 -OH) 2 ] 8+ subunit, [Co 5 (μ 3 -OH) 2 (bcpt) 4 (bib) 2 ] (1) (H 2 bcpt = 3,5-bis(3′-carboxyphenyl)-1,2,4-triazole, bib = 1,4-bis(1-imidazoly)benzene) is prepared, which not only shows weak antiferromagnetic interaction between the adjacent Co(II) ion, but also exhibits efficient electrocatalytic hydrogen evolution reaction by the integration with graphene (Gr). [ABSTRACT FROM AUTHOR]

[Display omitted] • Two hetero Eu/Tb-MOFs based on the same ligand H 3 BTB were synthesized solvothermally. • The two hetero Eu/Tb-MOFs exhibit different energy transfer efficiencies from Tb3+ to Eu3+. • The two hetero Eu/Tb-MOFs exhibit different performance in ratiomatric fluorescence detection of 2,6-dipicolinic acid (DPA). • The mechanism of sensing properties was discussed in detail. As one of the most important biomarkers of anthrax, accurate and sensitive detection of 2,6-dipicolinic acid (DPA) is essential to protect against anthrax disease or biological terrorist attack. This work presented seven MOFs of two different structures based on the same ligand H 3 BTB: five single Ln-MOFs [Ln(BTB)(DMF)] (Ln = Y3+ (1), Eu3+ (2) and Tb3+ (3)) and [Ln(BTB)(H 2 O)] (Ln = Eu3+ (5), Tb3+ (6)), and two optimized hetero Eu/Tb-MOFs [Tb 0.9 Eu 0.1 (BTB)(DMF)] (4) and [Tb 0.9 Eu 0.1 (BTB)(H 2 O)] (7). This work aimed at the crystal structures and energy transfer processes regulation of the fluorescence properties and detecting DPA. These two hetero Eu/Tb-MOFs 4 and 7 exhibit different energy transfer efficiency from Tb3+ to Eu3+ (4 : 15.23%; 7 : 96.86%), and the above energy transfer process could be influenced by DPA. Radiometric fluorescence detection of DPA was first studied in contrast by modulating the structure and energy transfer process in hetero Eu/Tb-MOFs. The detection limits of 4 and 7 for DPA were 0.078 μM (4) and 0.24 μM (7). In addition, 13 interferents did not affect the DPA detection. The high selectivity and good reproducibility of sensing DPA make hetero Eu/Tb-MOFs promising materials for applications in convenient bacillus anthracis detection. [ABSTRACT FROM AUTHOR]

Polyhedral, spherical, fragmented In 2 O 3 particles have been prepared via a thermal decomposition by calcining In-MOFs at appropriate temperature and their gas sensing behavior was investigated. The response of the In 2 O 3 -500 is 81.5 for 50 ppm formaldehyde vapor at 210 °C, which exceed the response values of all of the reported In 2 O 3 materials. The In 2 O 3 -500 sensor also shown long-term stability (at least 15 days), low detection limit of 10 ppm and excellent reproducibility. The results indicate that those In 2 O 3 particles have great potential as sensor to detect formaldehyde at low operating temperature. [ABSTRACT FROM AUTHOR]

Two isostructural Ln-MOFs, [H 2 N(CH 3 ) 2 ][Ln(cppa) 2 (H 2 O) 2 ] (Ln = Tb/Eu CTGU-1Tb /- 1Eu , H 2 cppa = 5-(4-carboxyphenyl)picolinic acid), were selected to investigate the effects of the different metal centre on the sensing properties. CTGU-1Eu can detect small organic molecule acetone and nitroaromatic explosives in water, whereas CTGU-1Tb can only detect explosive nitrophenol in water. [ABSTRACT FROM AUTHOR]

A unique 3D entangling Cu(II)-metal organic framework, namely, {[Cu 4 (abtc) 2 (btab) 6 ·3H 2 O]·2H 2 O} n ( 1 ), has been successfully constructed from Cu II and 3,3′,5,5′-azo benzene tetracarboxylate building units with the aid of N-donor bridging spacers [1,4-bis(triazol)butane], and directs a rare self-penetrating structure with polyhelix motifs and presents a new (4,4,8)-connected (4.6 5 ) 2 (6 4 .7.8) 2 (4 2 .6 20 .7 2 .8 4 ) topology. The magnetic investigations demonstrate that complex 1 exhibits antiferromagnetic coupling interaction between the adjacent Cu(II) ions. [ABSTRACT FROM AUTHOR]

A novel ytterbium metal–organic framework based on an unprecedented [Yb 6 (μ 2 -OH) 2 (μ 3 -OH) 6 ] 10 + cluster has been obtained and characterized, which shows a rare (3,12)-connected {3 2 .4} 2 {3 8 .4 22 .5 24 .6 10 .7 2 } topological net and strong near-infrared luminescent emission. [ABSTRACT FROM AUTHOR]

A novel Ni-MOF/nickel disulfide heterojunction composite (Ni-BTC/NiS 2) has been constructed successfully via in situ self-assembly strategy for the first time, which exhibits excellent MOR activity and durability. [Display omitted] • A heterojunction composite has been constructed via in situ self-assembly strategy. • Ni-BTC/NiS 2 composite exhibits excellent electrocatalytic properties for MOR. • This work provides a new vision for the design of MOR electrocatalysts. Nickel-based metal-organic frameworks (Ni-MOFs) are a promising anodic electrocatalyst for methanol oxidation reaction (MOR), but suffer from either low conductivity or poor chemical stability. The fabrication of MOF-based heterogeneous composites is one of the possible solutions. Herein, for the first time, a novel Ni-MOF/nickel disulfide heterojunction composite (Ni-BTC/NiS 2) has been constructed successfully via in situ self-assembly strategy, which exhibits excellent MOR activity and durability with an area specific peak current density of 34.36 mA cm−2. The enhanced electrocatalytic performance of the composite might be attributed to the synergistic/interface effect derived from the heterojunction structure. Undoubtedly, the integration of MOFs and inorganic functional species within a heterostructure realized by this work provides a new vision for the design of MOF-based electrocatalysts for MOR and other energy conversion processes. [ABSTRACT FROM AUTHOR]

A rare Ni-ferromagnet [Ni(pdc)(bib)]·2H 2 O (H 2 pdc = pyridine-3,5-dicarboxylic acid, bib = 1,4-bis (imidazol-l-yl)butane) has been prepared, which possesses a 3D supramolecular network based on (3,5)-connected helical-armed 2D layers. Interestingly, at high temperature (> 12.7 K), 1 exhibits a weak ferromagnetism, whereas at low temperature, it shows unusual long-range ordering (LRO) behaviors combining spin canting and hysteresis loop. [ABSTRACT FROM AUTHOR]

A new 3D Ni(II)-MOF {[Ni 3 (ImhedpH) 2 (4,4′-bipy)]·4,4′-bipy·4H 2 O} n (1), based on 2-(1-imidazole)-1-hydroxyl-1,1′-ethylidenediphosphonate and 4,4′-bipyridyl, is presented, which possesses a (4,4)-connected frl-(4 2 ·6 4 ) 4 (6 4 ·8 2 ) network and shows ferrimagnetism and field-induced magnetic transition from ferrimagnetism to fully polarized state. [ABSTRACT FROM AUTHOR]

A novel metal-organic framework, [Co 6 (μ 3 -OH) 4 (ndc) 4 (bip) 2 (H 2 O) 2 ] n ( 1 )[H 2 ndc = 1,4-naphthalenedicarboxylic acid, bip = 1,5-bis(imidazole-1-yl)pentane], constructed from unique [Co 6 (μ 3 -OH) 4 ] 8 + n chains containing alternate [Co 4 (OH) 2 ] 6 + and [Co 2 (OH) 2 ] 2 + subunits, was reported, which has a new (3,3,8,12)-connected or 12-connented fcu /cubic network and shows weak antiferromagnetic interaction between the adjacent Co(II) ions mediated through the carboxylate and hydroxyl groups. [ABSTRACT FROM AUTHOR]

A new supramolecular architecture, {[Zn(FDC)(phen)(H 2 O)]·0.5H 2 O} n ( 1 ), was obtained from mixed rigid ligands [9-fluorenone-2,7-dicarboxylic acid (H 2 FDC), 1,10-phenanthroline (phen)] and zinc(II) nitrate under hydrothermal reactions, which displays a charming 1D → 3D polycatenated motif based on 1D single-armed polymeric chains via powerful π π stacking interactions. In addition, the thermal stability and photoluminescence property of 1 were also investigated. [ABSTRACT FROM AUTHOR]

A first transition–metal coordination polymer [CuH 2 L(H 2 O)] n ( 1 ) based on a new mixed N-/O-donors 5-[2-carboxy-3-(1H-tetrazol-5-yl)-phenoxy]-isophthalic acid (H 4 L), which exhibits a 2D 3-connected polymeric network, has been presented and characterized by single-crystal X-ray diffraction, elemental analysis, IR and TGA. It has prominently displayed highly photocatalytic degradation activity for dye degradation as well as antiferromagnetic interactions between the adjacent Cu II ions. [ABSTRACT FROM AUTHOR]

Through hydrothermal reactions, 4,4′-bipyridine (bpy) co-ligands firstly was introduce to CdII-H2FDC system (H2FDC=9-fluorenone-2,7-dicarboxylic acid), generating a new coordination polymer {[Cd2(FDC)2(bpy)]∙H2O}n (1). Compound 1 has a pillar-layer 2-fold interpenetrating pcu network, based on the square-grid tetranuclear [Cd4(COO)8] units. Interestingly, 1 shows a blue-shifted photoemission, as well as enhanced fluorescence lifetime compared with the pure H2FDC ligand. [ABSTRACT FROM AUTHOR]

In this work, we reported a facile, scalable and, environmentally friendly approach to encapsulate catalytically active Ag nanoparticles (NPs) in porous metal–organic gel (MOG) via in situ grown. Attributing to the porous and abundant coordination cites in structural features of the MOG, Ag NPs can be readily fixed in the MOG with a uniform distribution. The resultant Ag NPs@MOG hybrid exhibited a remarkable and durable activity for the catalytic reduction of nitrophenol to aminophenol in an aqueous solution. The strategy for preparing hybrid based on MOGs opens a way toward the functional applications of MOGs. [Display omitted] • A facile approach to encapsulate Ag NPs in porous MOG (Ag NPs@MOG) hybrid is reported for the first time. • The Ag NPs can be readily fixed in the MOG with a uniform distribution. • The Ag NPs@MOG hybrid exhibited a remarkable catalytic reduction activity of nitrophenol to aminophenol. In this work, we reported a facile, scalable and, environmentally friendly approach to encapsulate catalytically active Ag nanoparticles (NPs) in porous metal–organic gel (MOG) via in situ grown. Attributing to the porous and abundant coordination cites in structural features of the MOG, Ag NPs can be readily fixed in the MOG with a uniform distribution. The resultant Ag NPs@MOG hybrid exhibited a remarkable and durable activity for the catalytic reduction of nitrophenol to aminophenol compounds in an aqueous solution. The strategy for preparing hybrid based on MOGs opens a way toward the functional applications of MOGs. [ABSTRACT FROM AUTHOR]

One new type of 3D pillared-layer MOF has been synthesized based on single organic linker with high adsorption capabilities for various hydrocarbon gas and promising CO 2 /CH 4 selectivity. • One new type of 3D pillared-layer framework was prepared by using single indazole-carboxyl liand. • The organic connects metal trimer into 2D layer and further bridges 2D layer resulting in 3D framework. • The unique framework architecture displays high gas adsorption and promising CO 2 /CH 4 selectivity. Herein, by well-designing one bifunctional organic ligand as distinct bridging nodes, one new three-dimensional (3D) pillar-layer MOF, namely as Co 3 (IDCA) 4 (IDCA = 1-H-indazole-5-carboxyle acid), has been synthesized and structurally characterized. The 3D Co 3 (IDCA) 4 framework is composed of linear metal trimer and parazole-carboxyl group with one-dimensional (1D) tetragonal channel. Despite of absence of open metal sites as molecule binding positions, this 3D framework displays promising uptake capacity and separation ability for various hydrocarbon gas molecules. [ABSTRACT FROM AUTHOR]

• Three entangted MOFs with unique topology have been prepared. • Metal ions and the auxiliary ligands show significant effects on the resulting structures. • The luminescent properties of the complexes have also been investigated. Three new entangled metal-organic frameworks, namely [Cd(TIPA)(HCOO) 2 ]·4H 2 O (1), [Cd 2 Cl 2 (TIPA) 2 (NDC) 2 ]·4H 2 O (2) and [Zn 2 (TIPA)(HCOO) (NDC) 1.5 ]·DMF·CH 3 OH·2H 2 O (3) (TIPA = tri(4-imidazolylphenyl)amine, H 2 NDC = naphthalene-2,6- dicarboxylic acid, DMF = N,N'-dimethylformamide), have been obtained under solvothermal conditions. 1 shows a 2-D → 3-D parallel/parallel inclined polycatenated framework. 2 represents a 3-D polythreaded supramolecular architecture consisting of (3,4,6)-connected 2-D sheets with a (4·52) 2 (42·510·6·72)(54·6·8) 2 topology. 3 has a (3,6)-connected 3-D 2-fold interpenetrating network with a Schläfli symbol of (42·6)(44·610·8). The luminescent properties of the complexes 1, 2 and 3 in the solid state have also been investigated at room temperature and 77 K respectively. [ABSTRACT FROM AUTHOR]