A new approach to the synthesis of hierarchical micro- and mesoporous MOFs from microporous involves a simple hydrolytic post-synthetic procedure. As proof concept, MOF, POST-66(Y), was synthesized its transformation into MOF by water treatment studied. This method produced mesopores in range 3 20 nm while maintaining original structure, at least part. The degree mesoporosity can be controlled adjusting time temperature hydrolysis. resulting porous POST-66(Y)-wt, utilized encapsulate...

The robustly porous metal–organic framework MOF–Cu2I2(BTTP4) (BTTP4 = benzene-1,3,5-triyl triisonicotinate) was shown to work as an efficiently heterogeneous catalyst for the three-component coupling of sulfonyl azides, alkynes, and amines, leading formation N-sulfonyl amidines in good yields. can be recycled by simple filtration reused at least four times without any loss yield. Studies ligand effects on reactions showed that BTTP4 could enhance rate, well chemoselectivity, when aromatic...

A porous metal–organic cage (MOC-Rh-<bold>1</bold>) with Rh–Rh bonds has been prepared, which can act as a heterogeneous catalyst and promote the intramolecular C–H amination of azides.

Assembly of a tripodal ligand tris(2-benzimidazoylmethyl)amine with the long rod-like spacer N1,N4-bis(pyridin-4-ylmethylene)-benzene-1,4-diamine in presence M(ClO4)2 (M = Cd2+ and Mn2+) or H3O·ClO4 leads to formation 63-hcb layers which interweave parallel fashion give first examples hydrogen-bonding Borromean links.

Two new crystalline compounds, named [LG·H2O]n (1; LG = liquiritigenin) and [LQ·C2H5OH·H2O]n (2; LQ liquiritin), have been synthesized structurally characterized by single-crystal powder X-ray diffraction, thermogravimetric analyses (TGA), nuclear magnetic resonance (NMR), high-resolution mass spectrometry (HR-MS), infrared spectra (IR). 1 2 crystallize in space groups Pna21 P212121, respectively. In the structure of 1, liquiritigenin water molecules are connected hydrogen bonds for...

Resonantly stabilized free radicals (RSFRs) are contemplated to be the reactive intermediates in molecular mass-growth processes leading polycyclic aromatic hydrocarbons (PAHs), which prevalent deep space and on Earth. The self-reaction routes of two RSFRs have been recognized as fundamental but more-efficient pathways form fused benzenoid rings. present experiment, exploits a chemical microreactor combination with an isomer-selective identification technique through fragment-free...

Abstract A new approach to the synthesis of hierarchical micro‐ and mesoporous MOFs from microporous involves a simple hydrolytic post‐synthetic procedure. As proof concept, MOF, POST‐66(Y), was synthesized its transformation into MOF by water treatment studied. This method produced mesopores in range 3 20 nm while maintaining original structure, at least part. The degree mesoporosity can be controlled adjusting time temperature hydrolysis. resulting porous POST‐66(Y)‐wt, utilized...

Information of solid-state and solution structures is crucial in the characterization molecular clusters advancing understanding their diverse properties. [Et3NH]2[Zn14(hmq)8(OH)4X10] [X = Cl Br; H2hmq 2-(hydroxymethyl)quinolin-8-ol] consist a peanut-shaped Zn10O12 core, which Zn atoms occupy faces corners an octahedron are protected by bonded halogen bulky organic ligands. Observation [Zn14(hmq)8(OH)4X10]2– fragment electrospray ionization mass spectrometry (ESI-MS) suggests that cluster...

Abstract A reliable procedure for the synthesis of oxysulfonyl azides has been developed and applied to three‐component coupling reactions azides, alkynes, amines catalyzed homogeneously by CuI, which led formation N ‐oxysulfonyl amidines with good yields. To fully evaluate catalytic activity towards this reaction, two coordination frameworks, namely, Cu 2 I (PDIN) without micropores (BTTP4) (PDIN=1,4‐phenylene diisonicotinate, BTTP4=benzene‐1,3,5‐triyltriisonicotinate), were prepared a...

A unique 2-fold interpenetrated CdSO4 coordination network of the formula {[Cu2(4-pmpmd)2(CH3OH)4(opd)2]·2H2O}n [4-pmpmd = N,N′-bis(4-pyridylmethyl)phenyldiimide; opd o-phthalic acid] has been synthesized and characterized by IR spectra, thermogravimetric (TG) analyses, elemental single crystal powder X-ray diffraction methods. The metal–organic framework (MOF) exhibits reversible dehydration rehydration in a single-crystal-to-single-crystal (SC–SC) process. Moreover, dehydrated material,...

The wide diversity in the structure, pore size, high surface area, adsorption affinity, and selective penetration renders metal-organic frameworks (MOF) attractive as highly efficient adsorbents for chromatographic separation. We report results of separation four families biochemically important compounds, viz., linear alkyl hydrocarbons (aldehyde, acid, ketone), aromatic alcohol), cyclic (ketone, alcohol, ester) (ether, ester, ester with alcohol) two phenyls, employing porous MOF...

Light-responsive metal–organic frameworks (LMOFs) are intriguing materials for CO2 capture owing to their tunable structures and performances. However, conventional LMOFs reported regulate adsorption capacity by steric hindrance or structural variation because of the weak affinity between adsorbate adsorbent. Developing efficient LMOF-based adsorbents with strong but active sites controllable is an extremely desirable yet challenging task. In this work, we constructed adsorbent targeted...

A hydrothermal reaction of benzimidazole-5,6-dicarboxylic acid (H3BimDc) with Cd(NO3)2·4H2O in an aqueous solution the presence NH3·H2O yielded a 3-D coordination framework [Cd1.5(BimDc)(H2O)2]·2H2O (1). Complex 1 shows (3,4,5)-connected net topology which ligand BimDc3− acts as five-connecting node, and two independent Cd(II) centres act three-connecting node four-connecting respectively. The Schläfli symbol this trinodal network can be described (4·6·8)2(42·62·82) (42·65·83)2. dehydration...

Heterogeneous solid base catalysts are highly expected due to their high activity and environmentally friendly nature in a variety of reactions. However, the catalytic traditional is controlled by external factors (such as temperature pressure), regulation situ changing own properties has never been reported. Herein, we report smart catalyst chemically anchoring photoresponsive azobenzene derivative p-phenylazobenzoyl chloride (PAC) onto metal-organic framework UiO-66-NH2 (UN) for first...

Abstract Enzymes have flexible structures and can modulate the multiple catalytic sites efficiently for synergistic catalysis. Inspired by enzymes, various artificial catalysts been designed, while controllable effects in never reported. Here, we report first example of photo‐regulated catalyst (PRSC) between acidic basic be regulated light. PRSCs on pore walls pendant azobenzene groups, photo‐regulation is achieved through isomerization. In cascade reaction converting benzaldehyde dimethyl...

A terbium(<sc>iii</sc>) complex performs, in a Zn(<sc>ii</sc>)-driven mode, site-selective recognition for proximal diphosphorylation of peptides both buffer and protein extraction solutions.

A yellow crystal with {FeII4O₄} cubes is modified to a black {FeIII4O₄} <italic>via</italic> SC–SC transformation.

Atom economic in situ domino N-alkylation reactions of triethylamine/ammonia with 2-(hydroxymethyl)quinolin-8-ol (HL-OH) assisted by FeSO4·7H2O were realized under mild solvothermal conditions at 120 °C acetonitrile. The resulting tripodal 2,2',2″-[nitrilotris(methylene)]tris(quinolin-8-ol) (H3L3-N) forms a linear trimer [Fe3(L3-N)2] (1). Electrospray ionization mass spectrometry the reaction solution provides evidence for intermediates three steps, while crystallography and X-ray...

Abstract Two polymorphs of supramolecular isomers, a discrete dimer and zig‐zag chain , having the same chemical composition, [Mn(Hbit)Cl 2 ] (Hbit=1‐methyl‐2‐(1 H ‐1,2,3‐triazol‐4‐yl)‐1 ‐benzo[ d ]imidazole), were obtained solvothermally in one‐pot synthesis. The isomers differ number ways: orange blocks versus pale‐yellow needles, triclinic P orthorhombic Pbcn double μ ‐Cl alternate single triple ‐Cl, coordination 5 6, antiparallel parallel near‐neighbor orientation Hbit. packing each case...

Isolation of light-switchable metal–organic cages within the targeted cavities frameworks through light-assisted precise size control, thus providing an efficient, adsorbent for tunable CO 2 adsorption.

Supramolecular frameworks obtained via self-assembly of proper elementary building units have received great attention, as they can express advanced functions uneasily expressed by the units. Until now, construction supramolecular has remained a challenging task, not to mention photoresponsive frameworks. Here, we report first framework (NUT-103) hierarchical zirconium metal–organic cages containing trinuclear clusters and azobenzene-functionalized ligands. NUT-103 displays permanent...