To systematically explore the influence of aromatic polycarboxylate coligands on building high-dimensional Cd(II)-bmb (1,4-bis(2-methylbenzimidazol-1-ylmethyl) benzene) coordination polymers, we synthesized six namely {[Cd(bmb)(o-phda)]·H2O}n (1), [Cd(bmb)0.5(m-phda)]n (2), [Cd(bmb)(p-phda)]n (3), [Cd(bmb)0.5(oba)]n (4), [Cd(bmb)(bpdc)]n (5), [Cd2(bmb)(bta)(mta)0.5]n (6), (H2phda = phenylenediacetic acid, H2oba =4,4′-oxybis(benzoic acid), H2bpdc biphenyl-4,4′-dicarboxylic H3bta...

The direct introduction of the valuable SCF

To systematically explore the influence of spacer angles and lengths dicarboxylate coligands on building ZnII-bmb [1,4-bis(2-methylbenzimidazol-1-ylmethyl)benzene] meso-helical coordination polymers, we synthesized seven metal−organic frameworks {[Zn(bmb)0.5(o-bdc)(H2O)]·0.5(bmb)·H2O}n (1), {[Zn(bmb)(2,6-pydc)]·2H2O}n (2), [Zn(bmb)(m-bdc)]n (3), [Zn(bmb)0.5(p-bdc)·H2O]n (4), [Zn(bmb)(fum)]n (5), {[Zn(bmb)(suc)]·1.5H2O}n (6), {[Zn(bmb)(glu)]·H2O}n (7) (o-H2bdc = 1,2-benzenedicarboxylic acid,...

Abstract This report widens the repertoire of emerging Pd I catalysis to carbon–heteroatom, that is, C−S bond formation. While 0 ‐catalyzed protocols may suffer from formation poisonous sulfide‐bound off‐cycle intermediates and lack selectivity, mechanistically diverse concept circumvents these challenges allows for (S–aryl S–alkyl) a wide range aryl halides. Site‐selective thiolations C−Br sites in presence C−Cl C−OTf were achieved general priori predictable fashion. Computational,...

Five novel metal–organic frameworks with a 1,3,5-tris(triazol-1-ylmethyl)-2,4,6-trimethylbenzene (tttmb) flexible tripodal block, namely, {[Cd(tttmb)(atc)]·1.5H2O}n (1), {[Cd5(tttmb)2(tbi)5(H2O)4]·2H2O}n (2), {[Cd3(tttmb)2(bdc)3(H2O)3]·0.5H2O}n (3), {[Cd2(tttmb)2(btc)Cl]·3H2O}n (4), and {[Cd2(tttmb)2(btec)(H2O)3]·H2O}n (5) (H2atc = 1,3-adamantanedicarboxylic acid, H2tbi 5-tert-butylisophthalic H2bdc 1,4-benzenedicarboxylic H3btc 1,2,4-benzenetricarboxylic H4btec...

A ruthenium-catalyzed arylation reaction of oxa- and azabicyclic alkenes with (hetero)arenes by C–H bond activation has been discovered. The does not require additives utilizes dioxygen in realizing the catalytic cycle leading to monosubstituted 7-oxa 7-azabenzonorbornane derivatives.

Combining nanozymes and bacteria to eliminate dental biofilms in a mixed-species model.

Abstract Peroxidase‐mimicking nanozymes that can generate toxic hydroxyl radicals ( . OH) hold great promise as antibacterial alternatives. However, most of them display optimal performance under strongly acidic conditions (pH 3–4), and are thus not feasible for many medical uses, including burn infections with a wound pH close to neutral. Herein, we report copper‐based nanozyme (CuCo 2 S 4 ) exhibits intrinsic peroxidase‐like activity convert H O into OH at neutral pH. In particular,...

Five interesting interpenetrating networks, namely, [Co(p-bdc)(beb)0.5]n (1), {[Co(p-bdc)(bmb)]·H2O}n (2), {[Co(p-bdc)(bmp)]·H2O}n (3), {[Zn(p-bdc)(bmp)]·H2O}n (4), and [Zn2(p-bdc)2(bmp)(H2O)2]n (5) [p-H2bdc = 1,4-benzenedicarboxylic acid, beb 1,4-bis(2-ethylbenzimidazol-1-ylmethyl)benzene, bmb 1,4-bis(2-methylbenzimidazol-1-ylmethyl)benzene, bmp 1,5-bis(2-methylbenzimidazol) pentane], have been synthesized by employing mixed ligands of various benzimidazole-based with p-H2bdc. Complex 1...

The substantial exciton binding energy in two-dimensional transition metal dichalcogenide (TMDC) monolayers offers a prime platform for investigating many-body effects and realizing excitonic devices at room temperature. In these monolayers, behaviors can be efficiently modulated by external stimuli, such as temperature, mechanical stress, electric fields. Particularly, in-plane electrical modulation of emission distribution has been achieved recently; however, the depth is still too small...

With tunnelling induced light emission, correlation relations among multiple conducting channels in molecular monolayer tunnel junctions are revealed, which relates to the dynamic changes of interface contact or conformation.

Abstract This report widens the repertoire of emerging Pd I catalysis to carbon–heteroatom, that is, C−S bond formation. While 0 ‐catalyzed protocols may suffer from formation poisonous sulfide‐bound off‐cycle intermediates and lack selectivity, mechanistically diverse concept circumvents these challenges allows for (S–aryl S–alkyl) a wide range aryl halides. Site‐selective thiolations C−Br sites in presence C−Cl C−OTf were achieved general priori predictable fashion. Computational,...

An unprecedented high-nuclearity metallamacrocycle-based 3D silver framework with formula {[Ag2(C25H27N6O)2](CH3OH)(H2O)0.17}n (1), built on the basis of dodecanuclear building blocks, has been synthesized and characterized, it shows strong phosphorescence emission at 10 K, which is a consequence presence intersystem crossing from singlet to triplet caused by heavy-atom effect ions.

Pd(acacCN)₂ and Ag(<sc>i</sc>) salts aggregate to a 3D network or 1D chains. The latter topology provides an example for tunable phase transition.

The alternative coordination sites of 3-(3,5-dimethyl-pyrazol-4-yl)pentane-2,4-dione (H2acacPz) differ with respect to Pearson hardness. softer, heterocyclic moiety was used as N donor toward Zn(II) and Ag(I); it yielded a tetrahedral, neutral Zn complex in the former monocationic, linear bis(ligand) Ag latter case. After deprotonation silver benzoate, pyrazolyl ring may act monoanionic N,N′-bridge between neighboring cations hexanuclear aggregate; addition ligand-supported Ag···Ag distances...

Abstract As contemporary star materials, 2D monolayer semiconductors have drawn huge research interests owing to their striking electrical and optical properties, rendering them ideal candidates as building blocks for novel optoelectronic devices. Towards light emitting devices with extended functions, it is necessary manipulate the polarization of emission from semiconductors. However, most these exhibit no or very limited sensitivity inherited structural anisotropy, making challenging...

Transition metal dichalcogenide (TMD)-based 2D monolayer semiconductors, with the direct bandgap and large exciton binding energy, are widely studied to develop miniaturized optoelectronic devices, e.g., nanoscale light-emitting diodes (LEDs). However, in terms of polarization control, it is still quite challenging realize polarized electroluminescence (EL) from TMD monolayers, especially at room temperature. Here, by using Ag nanowire top electrode, LEDs demonstrated based on semiconductors...

Abstract Two template‐induced supramolecular isomers [Pb(2,3‐pyde)] n ( 1 and 2 ; 2,3‐pyde = pyridine‐2,3‐dicarboxylate) have been synthesized under hydrothermal conditions. Complex displays a 2D network with point symbol of (4 · 6 4 ) , whereas complex exhibits 3D framework . The study the stability demonstrates that they high thermal excellent chemical resistance to boiling water common organic solvents. Interestingly, two polymers evidently possess different fluorescent properties...

An N-heterocyclic carbene (NHC)-catalyzed highly diastereo- and enantioselective formal [3+2] reaction of o-hydroxy aromatic aldimines cinnamaldehydes for the preparation enantioenriched trans-γ-lactams was developed. internal hydrogen bond between imine function crucial reactivity chemical selectivity. Trans-γ-lactam 3 d easily oxidized to multifunctional 1,4-benzoquinone 8, which could further be transformed biaryl 9 in presence a phosphoric acid. Finally, preliminary results kinetic...

Plasmonic nanocavities, with the ability to localize and concentrate light into nanometer-scale dimensions, have been widely used for ultrasensitive spectroscopy, biosensing, photodetection. However, as nanocavity gap approaches subnanometer length scale, plasmonic enhancement, together enhanced optical processes, turns quenching because of quantum mechanical effects. Here, instead quenching, we show that effects nanocavities can elevate surface-enhanced infrared absorption (SEIRA) molecular...

Abstract Excitons in monolayer semiconductors, benefitting from their large binding energies, hold great potential towards excitonic circuits bridging nano-electronics and photonics. However, achieving room-temperature ultrafast on-chip electrical modulation of distribution flow semiconductors is nontrivial. Here, utilizing lateral bias, we report high-speed the a semiconductor junction at room temperature. The alternating charge trapping/detrapping two monolayer/electrode interfaces induces...