The unique features of the metal-organic frameworks (MOFs), including ultrahigh porosities and surface areas, tunable pores, endow MOFs with special utilizations as host matrices. In this work, various neutral ionic guest dye molecules, such fluorescent brighteners, coumarin derivatives, 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM), 4-(p-dimethylaminostyryl)-1-methylpyridinium (DSM), are encapsulated in a MOF, yielding novel blue-, green-, red-phosphors,...

A novel niobium oxyiodate sulfate, Nb2 O3 (IO3 )2 (SO4 ), was fabricated by a rational multi-component design under moderate hydrothermal conditions. This is inspired an interesting oxysulfate reaction, which opens new door for synthetic method to effectively introduce refractory metals such as Nb into crystal structures synthesis. ) features cube-like topological structure with large phase-matching second harmonic generation (SHG) response (6×KDP), wide transparency window (0.38-8 μm), and...

A new mixed-ligand metal-organic framework (MOF), ZnATZ-BTB, has been constructed as a luminescent ratiometric thermometer by making use of the intrinsic dual emission at cryogenic temperatures. Its twofold interpenetrated network promotes Dexter energy transfer (DET) between mixed organic lumophores. The temperature-dependent behavior arises from thermal equilibrium two separated excited states coupled DET, which is confirmed Boltzmann distribution fitting. small excited-state gap allows...

Enantioseparation is an integral process in the pharmaceutical industry, considering ever-increasing demand for chiral medicine products. As a new material, porous metal–organic frameworks (MOFs) have shown their potential application this field because structures are easy to adjust and control. Though recognition between racemic substrates has made preliminary progress, discussions of size-matching effects rare. Herein with help channel-tunable homochiral MOFs (HMOFs), diols different sizes...

Two-dimensional (2D) coordination polymer [Zn(ATZ)2]n (HATZ = 5-amino-1H-tetrazole) featuring a 2D + → pillar-layer array was synthesized, wherein two honeycomb-shaped Zn(ATZ)1.5 sublayers can be stitched together by dicarboxylate bridging linkers of varied length and type to generate 4 three-dimensional (3D) isoreticular noninterperpentrated frameworks under solvothermal conditions. The interpenetration behavior may constrained some extent the pillar because 3D twofold interpenetrated...

A mixture of 2D and 1D metal-organic complexes, [ZnL(H2O)2·G1·DEF·2H2O]n (1a: G1 = naphthalene-2,7-disulfonate; DEF N,N-diethylformamide) [ZnL(H2O)3·G1·DEF·2H2O]n (2), has been prepared from a hydrogenated Schiff base L Zn(II) in DEF-contained solvent system under mild conditions. The yields 1a 2 are equivalent; however, they can be tuned by varying the amount solvent. Increasing use tends to form pure 1a, while decreasing it generates 2. Without DEF, another novel 3D four-connected CdSO4...

A novel X-ray-induced photochromic metal–organic complex was constructed by confining an electron-capturing unit within the cavity of electron-donating framework.

Abstract A novel niobium oxyiodate sulfate, Nb 2 O 3 (IO ) (SO 4 ), was fabricated by a rational multi‐component design under moderate hydrothermal conditions. This is inspired an interesting oxysulfate reaction, which opens new door for synthetic method to effectively introduce refractory metals such as into crystal structures synthesis. features cube‐like topological structure with large phase‐matching second harmonic generation (SHG) response (6×KDP), wide transparency window (0.38–8 μm),...

A series of isomorphic 3D layered rare earth hydroxide (LREH) frameworks RE3(OH)7(1,5-NDS) (RE = Y (1), Gd (2), Er (3), Yb (4); 1,5-NDS 1,5-naphthalenedisulfonate) has been synthesized under hydrothermal conditions. The crystal structures, thermal stabilities, photoluminescence, and magnetic properties these compounds have investigated. results demonstrate that the are highly stable even at 351 °C emit strong purple fluorescence, whose colour can be tuned by coordinated ions. Their...

The booming development of homochiral metal–organic frameworks (HMOFs) since the start 21st century has attracted considerable attention from scientific community. With features inherited MOFs, HMOFs have great potential for application in gas storage, separation, sensing, catalysis, ferroelectric materials and nonlinear optics. Moreover, they show incomparable enantioseparation asymmetric which are emergent technologies modern chemical engineering. In this highlight, we summarize classical...

Utilizing the mixed-ligand strategy, a novel fourfold-interpenetrated 3D homochiral metal–organic framework (1) with rare pair quadruple-stranded helices was assembled from bpee (1,2-bis(4-pyridyl)ethylene) and NCG (N-carbamyl-l-glutamate). Changing carbamyl substituent of benzoyl group (NBzG: N-benzoyl-l-glutamate), non-interpenetrated coordination polymer (2) composed alternate right-handed left-handed single helix obtained. When p-tolylsulfonyl used instead, an interesting linear...

The pores/channels of porous 3D metal-organic frameworks (MOFs) have been widely applied to incorporate gas, solvent, or organic molecules. On the contrary, utilization interlamellar void layered complexes (MOCs) remains underappreciated, although it is more flexible and available accommodate molecules with different sizes. In this work, diverse sulfonates intercalated purposely into an identical MOC, which constructed various novel intercalation compounds possessing fluorescent, white-light...

Stable and resilient materials are in great demand for electromagnetic interference (EMI) shielding applications under extreme conditions. Here we present a facile method that could tailor strengthen the pore structure of carbon nanotube (CNT) foams to obtain highly effective reliable EMI absorbers maintain their superior effectiveness heavy mechanical deformation extremely high temperature. The hierarchical macro-to-micro properties CNT foam were tailored wide range via secondary chemical...

Herein we report five porous luminescent coordination polymers (CPs), namely, [Zn3(L27)2(DMA)6(H2O)4]n (TCZ-001), [Zn3(L27)2(DMA)6(CH3CH2OH)2]n (TCZ-002), [Zn3(L27)2(DMA)6(CH3OH)]n (TCZ-003), [Cd3(L27)2(DMA)6(H2O)2]n (TCZ-004), and [Cd9(L27)6DMA13(4,4′-BPY)2(OH)2(H2O)13.5]n (TCZ-005) [H3L27 = 2,7-bis(4-benzoic acid)-N-(4-benzoic acid) carbazole, DMA N,N-dimethylacetamide, 4,4′-BPY 4,4′-bipyridine, TCZ "T"-shape carbazole-based polymers, L27 fully deprotonated H3L273− ligand]. All of the CPs...

Two homochiral zeolitic imidazolate frameworks (<italic>S</italic>- and <italic>R</italic>-ZIF-78h) of GME topology are synthesized <italic>via</italic> solvent-assisted linker exchange (SALE) ZIF-78, which exhibit permanent porosity enantioselective sensing separation proline.

Short azole and long tris(4-(1H-imidazol-1-yl)phenyl)amine (Tipa) ligands are incorporated into the syntheses of metal–organic frameworks (MOFs) for first time. Owing to discovery a binary solvothermal reaction system, short–long mixing strategy is realized. By this strategy, cationic MOF possessing large pore opening (maximum size 13.1 Å) obtained with permanent porosity ion-exchange property. Also, another one rare sandwich layer can be when using tetrazole instead imidazole under similar...

A stable porous MOF with a controllable particle size can be used as an HPLC situational phase for small organic molecule separations.

Summary of main observation and conclusion Presented here is a new interrupted AST‐type zeolitic imidazolate framework, Zn 5 (OH)(dmbim) 9 (H 2 O)• 4(DMF) ( 1 ) with cub ast cages, which exhibits permanent porosity, high hydrophobicity strong solid‐state photoluminescent properties. More importantly, structural ordered DMF molecules are firmly confined in the ‐ cage by host‐guest interactions.

Two new isostructural non-centrosymmetric cerium iodates KxCe9(IO3)36 (x≈ 3) and LaxCe9(IO3)36 0.3) were synthesized via a hydrothermal method systematically characterized. They are intermediate valence compounds with the same band gap, showing similar microscopic net dipole moments per unit volume, but different macroscopic second-harmonic generation (SHG) responses under 1064 nm laser irradiation. This research gives view for understanding effects of electronic structure on SHG response.

The inertial sensors in the navigation system (INS) are susceptible to ambient thermal field and these temperature-induced errors can be principal factor that decreases applied precision of system. Software compensation is an effective method which predict eliminate directly from sensor outputs. But it a technical challenge compensate at high accuracy as well make adaptable complicated time-varying environment. To overcome this, excellent temperature experiment algorithm design both...

A system containing several layered structures made of zinc and tris(4-(1H-imidazol-1-yl)phenyl) amine is reported here. It shows high efficiency in situ encapsulating organic sulfates. Compared to the crystalline sponge method, preparation time about same, but more guest species may be accessible due absence pore limitations organics-friendly solvent system.