Having access to clean water is a mandatory requirement for the proper development of living beings. So, addressing removal contaminants from aquatic systems should be priority research topic in order restore ecosystem balance and secure more sustainable future. The fascinating structures striking physical properties metal–organic frameworks (MOFs) have revealed them as excellent platforms harmful species water. In this review, we focused our attention on critically highlighting latest...

Abstract The physical implementation of quantum information processing relies on individual modules—qubits—and operations that modify such modules either individually or in groups—quantum gates. Two examples gates entangle pairs qubits are the controlled NOT-gate (CNOT) gate, which flips state one qubit depending another, and "Equation missing"gate brings a two-qubit product into superposition involving partially swapping states. Here we show through supramolecular chemistry single simple...

A novel chiral 3D bioMOF exhibiting functional channels with thio-alkyl chains derived from the natural amino acid l-methionine (1) has been rationally prepared. The well-known strong affinity of gold for sulfur derivatives, together extremely high flexibility thioether "arms" decorating channels, account a selective capture gold(III) and gold(I) salts in presence other metal cations typically found electronic wastes. X-ray single-crystal structures different adsorbates Au(III)@1 Au(I)@1...

Abstract A robust and water‐stable metal–organic framework (MOF), featuring hexagonal channels decorated with methionine residues ( 1 ), selectively captures toxic species such as CH 3 Hg + 2+ from water. exhibits the largest uptake capacity ever reported for a MOF, decreasing [Hg ] [CH concentrations in potable water highly hazardous 10 ppm to much safer values of 6 27 ppb, respectively. Just like biological systems, high‐performance metal capture also involves molecular recognition...

The synthesis of mixed-component metal-organic frameworks (MOFs) –including multivariate MOFs (MTV-MOFs), multicomponent MOFs, mixed-metals and mixed-ligands metals MOFs– is becoming a very active research field. This mainly based on the unique possibilities these materials offer to incorporate multiple functionalities in how this heterogenity complexity translated unexpected properties, which are not just sum each component. review critically encompasses progress made field, covering...

Abstract The removal of acetylene from ethylene streams is key in industry for manufacturing polyethylene. Here we show that a well-defined Pd 1 –Au dimer, anchored to the walls metal–organic framework (MOF), catalyses selective semihydrogenation with ≥99.99% conversion (≤1 ppm acetylene) and >90% selectivity extremely rich (1% acetylene, 89% ethylene, 10% H 2 , simulated industrial front-end reaction conditions). proceeds an apparent activation energy ∼1 kcal mol –1 working even at 35...

We report a new water-stable multivariate (MTV) metal–organic framework (MOF) prepared by combining two different oxamide-based metalloligands derived from the natural amino acids l-serine and l-methionine. This unique material features hexagonal channels decorated with types of flexible functional "arms" (−CH2OH −CH2CH2SCH3) capable enabling, synergistically, simultaneous efficient removal both inorganic (heavy metals such as Hg2+, Pb2+, Tl+) organic (dyes Pyronin Y, Auramine O, Brilliant...

On the road to chemical sensors: A novel 2D oxamato-based manganese(II)-copper(II) mixed-metal–organic framework (M'MOF) exhibiting non-linear fluorescence and long-range magnetic ordering is reported. This new luminescent nanoporous magnet features highly selective solvent- gas sorption-induced optical switching behavior, opening door potential application for sensing of small molecules. Detailed facts importance specialist readers are published as "Supporting Information". Such documents...

Abstract The gram‐scale synthesis, stabilization, and characterization of well‐defined ultrasmall subnanometric catalytic clusters on solids is a challenge. chemical synthesis X‐ray snapshots Pt 0 2 clusters, homogenously distributed densely packaged within the channels metal–organic framework, presented. This hybrid material catalyzes efficiently, even more importantly from an economic environmental viewpoint, at low temperature (25 to 140 °C), energetically costly industrial reactions in...

Proton conduction in solids attracts great interest, not only because of possible applications fuel cell technologies, but also the main role this process many biological mechanisms. Metal–organic frameworks (MOFs) can exhibit exceptional proton-conduction performances, large number hydrogen-bonded water molecules embedded their pores. However, further work remains to be done elucidate real conducting mechanism. Among different MOF subfamilies, bioMOFs, which have been constructed using...

A novel isoreticular oxamato-based manganese(II)-copper(II) open metal-organic framework H(2)O@iso1 featuring a pillared square/octagonal layer structure with alternating and closed octagonal pores has been rationally prepared. The open-framework topology is responsible for large selectivity in the separation of small gas (CO(2) over CH(4)) vapor molecules (CH(3)OH CH(3)CN CH(3)CH(2)OH). displays long-range three-dimensional ferromagnetic ordering drastic variation critical temperature as...

Abstract Quantum information processing (QIP) would require that the individual units involved—qubits—communicate to other qubits while retaining their identity. In many ways this resembles way supramolecular chemistry brings together molecules into interlocked structures, where assembly has one identity but components are still recognizable. Here a fully modular strategy been link hybrid organic–inorganic [2]- and [3]-rotaxanes larger [4]-, [5]- [7]-rotaxanes. The ring heterometallic...

The design and synthesis of novel examples multifunctional magnetic materials based on the so-called coordination polymers (CPs) have become very attractive for chemists physicists due to their potential applications in nanoscience nanotechnology.

A single crystal to transmetallation process takes place in the three-dimensional (3D) metal-organic framework (MOF) of formula Mg(II) 2 {Mg(II) 4 [Cu(II) (Me3 mpba)2 ]3 }⋅45 H2 O (1; Me3 mpba(4-) =N,N'-2,4,6-trimethyl-1,3-phenylenebis(oxamate)). After complete replacement ions within coordination network and those hosted channels by either Co(II) or Ni(II) ions, 1 is transmetallated yield two novel MOFs formulae Co2 (II) {Co(II) }⋅56 (2) Ni2 {Ni(II) }⋅ 54 (3). This unique postsynthetic...

ConspectusSince the advent of first metal–organic frameworks (MOFs), we have witnessed an explosion captivating architectures with exciting physicochemical properties and applications in a wide range fields. This, part, can be understood under light their rich host–guest chemistry possibility to use single-crystal X-ray diffraction (SC-XRD) as basic characterization tool. Moreover, on preformed MOFs, applying recent developments template-directed synthesis postsynthetic methodologies (PSMs),...

Metal single-atom catalysts (SACs) promise great rewards in terms of metal atom efficiency. However, the requirement particular conditions and supports for their synthesis, together with need solvents additives catalytic implementation, often precludes use under industrially viable conditions. Here, we show that palladium single atoms are spontaneously formed after dissolving tiny amounts salts neat benzyl alcohols, to catalyze direct aerobic oxidation benzoic acids without ligands,...

The search for simple, earth-abundant, cheap, and nontoxic metal catalysts able to perform industrial hydrogenations is a topic of interest, transversal many catalytic processes. Here, we show that isolated FeIII-O sites on solids are dissociate chemoselectively transfer H2 acetylene in an process. For that, novel, robust, highly crystalline metal-organic framework (MOF), embedding FeIII-OH2 single within its pores, was prepared multigram scale used as efficient catalyst the hydrogenation 1%...

Ferroelectrics (FEs) are materials of paramount importance with a wide diversity applications. Herein, we propose postsynthetic methodology for the smart implementation ferroelectricity in chiral metal−organic frameworks (MOFs): following single-crystal to cation metathesis, Ca2+ counterions preformed MOF formula Ca6II{CuII24[(S,S)-hismox]12(OH2)3}·212H2O (1), where hismox is ligand derived from natural amino acid l-histidine, replaced by CH3NH3+. The resulting compound,...

Abstract The concept of “molecular magnetic sponges” was introduced for the first time in 1999 by creative imagination late Olivier Kahn. It refers to exotic spongelike behavior certain molecule‐based materials that undergo a dramatic change their properties upon reversible dehydration/rehydration processes. Here we report unique example manganese(II)–copper(II) mixed‐metal–organic framework formula [Na(H 2 O) 4 ] [Mn {Cu (mpba) (H } 3 ]⋅ 56.5 H O ( 1 ) (mpba= N,N′...

A new series of neutral oxamato-bridged M(II)Cu(II) chiral chains general formula [MCuL(x)(S)(m)(H(2)O)(n)]·aS·bH(2)O [L(1)=(M)-1,1'-binaphthalene-2,2'-bis(oxamate) with M=Mn (1a) and Co (1b); L(2)=(P)-1,1'-binaphthalene-2,2'-bis(oxamate) (2a) (2b)] the analogous racemic [MCuL(3)(S)(m)(H(2)O)(n)]·aS·bH(2)O [L(3)=1,1'-binaphthalene-2,2'-bis(oxamate) (3a) (3b)] have been prepared by reaction corresponding dianionic oxamatocopper(II) complex [Cu(L(x))](2-) Mn(2+) or Co(2+) cations in either...