Chemosensors detect a single target molecule from among several molecules, but cannot differentiate targets one another. In this study, we report molecular decoding strategy in which host domain accommodates class of molecules and distinguishes between them with corresponding readout. We synthesized the by embedding naphthalenediimide into scaffold an entangled porous framework that exhibited structural dynamics due to dislocation two chemically non-interconnected frameworks. An intense...

Size Affects Shape Porous molecular framework materials can adopt a different phase when guest molecules absorb and uniformly distort the framework. Usually returns to its original shape guests desorb. Sakata et al. (p. 193 ) noted that because surface stress drives this process, it might be avoided in smaller crystals. Indeed, flexible porous coordination polymer, [Cu 2 (dicarboxylate) (amine)] n , could retain structure induced by such as methanol if crystallites were made sufficiently...

MOF on MOF: Core-shell porous coordination polymer (PCP) crystals are fabricated at the single-crystal level by epitaxial growth in solution. Synchrotron X-ray diffraction measurements unveiled structural relationship between shell crystal and core crystal, where in-plane rotational compensates difference lattice constant.

Hybrid catalyst systems to achieve acceptorless dehydrogenation of N-heterocycles and tetrahydronaphthalenes—model substrates for liquid organic hydrogen carriers—were developed. A binary hybrid catalysis comprising an acridinium photoredox a Pd metal was effective the N-heterocycles, whereas ternary catalyst, thiophosphoric imide organocatalyst achieved tetrahydronaphthalenes. These allowed 2 molar equiv H2 gas release from six-membered tetrahydronaphthalenes under mild conditions, i.e.,...

Molecule-based heterogeneous photocatalysts without noble metals are one of the most attractive systems for visible-light-driven CO2 reduction. However, reports on this class still limited, and their activities quite low compared to those containing metals. Herein, we report an iron-complex-based photocatalyst reduction with high activity. The key our success is use a supramolecular framework composed iron porphyrin complexes bearing pyrene moieties at meso positions. catalyst exhibited...

Crystal extractor: Heterostructured porous coordination polymer crystals fabricated using epitaxial growth have two contradictory functions, namely size selectivity and high storage. The not only extract linear petroleum molecules from a mixture with its branched isomer, even at very low concentrations of isomer (1 wt %), but also shows improved accumulation the in pores. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed,...

Two porous coordination polymers (PCPs) with different pore surface functionality were integrated into one single crystal by face-selective epitaxial growth, leading to BAB-type block PCP crystals the core A between second B.

We report the successful heteroepitaxial growth of perfectly oriented hybrid MOF thin films. By employing step-by-step liquid-phase epitaxy (LPE), [Zn(2)(ndc)(2)(dabco)](n) was grown on [Cu(2)(ndc)(2)(dabco)](n), thus demonstrating that MOF-on-MOF deposition scheme developed for powdered microcrystalline materials can also be applied in connection with LPE films or multilayers. The monitored by surface plasmon resonance (SPR) spectroscopy, resulting heterostructures were characterized using...

Surface-specific: Coordinatively immobilized monolayers (CIMs) of fluorescent dyes were fabricated on specific single-crystal surfaces porous coordination polymers (PCPs) (see picture). This approach enables the fabrication functional PCP crystal with precisely controlled gating and sensing properties. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by...

Functional cellular substrates for localized cell stimulation by small molecules provide an opportunity to control and monitor signalling networks chemically in time space. However, despite improvements the controlled delivery of bioactive compounds, precise localization gaseous biomolecules at single-cell level remains challenging. Here we target nitric oxide, a crucial molecule with site-specific concentration-dependent activities, report synthetic strategy developing spatiotemporally...

The upbuilding of dirhodium tetracarboxylate paddlewheels into porous architectures is still challenging because the inertness equatorial carboxylates for ligand-exchange reaction. Here we demonstrate synthesis a new family metal-organic cuboctahedra by connecting units through 1,3-benzenedicarboxylate and assembling as solids. Carbon monoxide nitric oxide were strongly trapped in internal cavity thanks to strong affinity unsaturated axial coordination sites centers.

Visible-light-driven catalytic reduction of CO2 is at the heart artificial photosynthesis. Here, we demonstrate first example a Ru complex that can function both as photosensitizer and catalyst for reduction. The exhibited excellent activity CO evolution with high turnover number (TON, 353 24 h), reaction rate (TOF, 14.7 h–1), product selectivity (97%) under visible-light irradiation. We also succeeded in selective formation (CO or HCOOH) by changing basicity media. This finding will open...

A new strategy to synthesize monodispersed porous coordination polymer (PCP) nanocrystals at room temperature was developed and utilized for the formation of PCP thin films on gold substrates with fine control over crystal sizes using modulation method. Hybridization these an environment-controlled quartz microbalance system allowed determining adsorption properties organic vapors (methanol hexane). In case high sensitivity (at low-concentration dosing analytes), sensor response depended...

Abstract Inspired by the reaction mechanism of photo‐induced DNA cleavage in nature, a C(sp 3 )−H cyanation promoted visible‐light photoredox/phosphate hybrid catalysis was developed. Phosphate radicals, generated one‐electron photooxidation phosphate salt, functioned as hydrogen‐atom‐transfer catalyst to produce nucleophilic carbon radicals from bonds with high bond‐dissociation energy. The resulting were trapped cyano radical source (TsCN) C−H products. Due functional‐group tolerance and...

Abstract The development of artificial molecular catalysts for CO 2 reduction is the key to solving energy and environmental problems. Although chemical modifications can generally improve catalytic activity this class compounds, they often require complicated synthetic procedures. Here, we report a simple procedure that dramatically enhances electrochemical activity. A one‐step counteranion‐exchange reaction increased solubility commercially available catalyst, iron(III)...

A solid-solution Co–Zn bimetallic MOF with exceptional stability against water and light was developed as an active photocatalyst for efficient hydrogen production from water.

Abstract MOF im MOF: Einkristalle eines porösen Kern‐Schale‐Koordinationspolymers (PCP) wurden durch epitaxiales Wachstum in Lösung erzeugt. Synchrotron‐Röntgenbeugungsmessungen offenbarten die strukturellen Beziehungen zwischen dem Kern‐ und Schalenkristall: Ein verdrehter Orientierung gleicht unterschiedlichen Gitterkonstanten aus. magnified image

Abstract Rational molecular design of catalytic systems capable smooth OO bond formation is critical to the development efficient catalysts for water oxidation. A new ruthenium complex was developed, which bears pendant SO 3 − groups in secondary coordination sphere: [Ru(terpy)(bpyms)(OH 2 )] (terpy=2,2′:6′,2′′‐terpyridine, bpyms=2,2′‐bipyridine‐5,5′‐bis(methanesulfonate)). Water oxidation driven by a Ce 4+ oxidant distinctly accelerated upon introduction comparisons parent catalyst,...

The development of robust and efficient molecular catalysts based on earth-abundant transition metals for water oxidation reactions is a challenging research target. Our group recently demonstrated the high activity stability pentairon-based electrocatalyst (M. Okamura, M. Kondo, R. Kuga, Y. Kurashige, T. Yanai, S. Hayami, V. K. Praneeth, Yoshida, Yoneda, Kawata Masaoka, Nature, 2016, 530, 465-468). However, strategies to decrease onset potentials catalysis remains challenging. In this...

The construction of highly active molecular catalysts for the water oxidation reaction (2H2O → O2 + 4H+ 4e−) based on earth-abundant and low-toxic metal ions is strongly required to develop a sustainable artificial energy cycle. Biorelevant first-row transition ions, manganese, copper, iron are attractive candidates such because their ubiquitous nature high affinity oxygen atoms. In this highlight review, we introduce recent progress in development containing biorelevant ions.

Hydroxyalkylation of <italic>N</italic>-heteroaromatics with aldehydes was achieved using a binary hybrid catalyst system comprising an acridinium photoredox and thiophosphoric acid organocatalyst.