Using the achiral diazine ligands bearing two bidentate pyridylimino groups as sources of conformational chirality, five azido-bridged coordination polymers are prepared and characterized crystallographically magnetically. The chirality molecular units is induced by in a twisted chiral conformation. use L1 (1,4-bis(2-pyridyl)-1-amino-2,3-diaza-1,3-butadiene) L2 (1,4-bis(2-pyridyl)-1,4-diamino-2,3-diaza-1,3-butadiene) induces spontaneous resolution, yielding conglomerates compounds...

By incorporating an achiral diazine ligand, 2-pyridylmethylketazine, which can be locked in a chiral conformation upon coordination, into the manganese(II)-azido system, we induced homochiral 2D network, neighboring Mn(II) ions are bridged via and two end-on azido ligands dimeric units, units interlinked single end-to-end bridges. The interdimer chirality preservation is achieved 1D helical linkage formed by ions. layers stacked hetero- fashion to yield simultaneously racemic crystals,...

Here, direct and effective electrostatic‐driven exfoliation of tungsten trioxide (WO 3 ) powder into atomically thin WO nanosheets is demonstrated for the first time. Experimental evidence together with theoretical simulations clearly reveal that strong binding bovine serum albumin (BSA) on surface via protonation NH 2 groups in acidic conditions leads to under sonication. The exfoliated have a greatly improved dispersity stability due surface‐protective function BSA, exhibit better...

A synthetic strategy to prepare 2D heterostructures from ultrathin CeO 2 surface-coordinated metal–organic framework was proposed, proving multiple effects of metal-coordinated interactions in heterostructures.

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The rational design of heterogeneous catalysts is crucial for achieving optimal physicochemical properties and high electrochemical activity. However, the development new amorphous-crystalline heterostructures significantly more challenging than that existing crystalline-crystalline heterostructures. To overcome these issues, a coordination-assisted strategy can help fabricate an amorphous NiO/crystalline NiCeO

Two soluble and stable dianthraceno[a,e]pentalenes with two (DAP1) six (DAP2) phenyl substituents were synthesized. Both compounds possess a small energy band gap show amphoteric redox behaviour due to intramolecular donor-accepter interactions. X-ray crystallographic analysis revealed that DAP2 has closely packed structure multi-dimensional [C-H···π] interactions although there are no π-π between the dianthraceno[a,e]pentalene cores. As result, solution-processed field effect transistors...

We report a fluorescent light-up platform for multi-target detection in aqueous solution and on paper strip.

Driven by the demand for shape-controlled synthesis of α-Fe2O3 nanostructures and understanding their growth mechanism shape-dependent properties, we report octadecahedral nanocrystals with a hexagonal bipyramid shape introducing F– anions in solution. The hydrothermal process from hydrolysis Fe3+ precursors involves three steps: nucleation akaganeite (β-FeOOH) nanorods, followed formation goethite (α-FeOOH) crystals acicular twinned shapes, subsequent transformation into hematite (α-Fe2O3)...

Five Mn(II)−azido coordination polymers of formula [Mn(L)(N3)2]n have been synthesized and crystallographically characterized, their magnetic properties studied, where L's are the bidentate Schiff bases obtained from condensation pyridine-2-carbaldehyde with aniline (1) its derivatives p-toluidine (2), m-toluidine (3), p-chloroaniline (4), m-chloroaniline (5). All complexes consist zigzag chains in which Mn(II) ions alternately bridged by two end-to-end (EE) end-on (EO) azido ligands,...

Three one-dimensional (1D) azido-bridged coordination polymers of formula [Cu(L)(N3)2]n (1), [Cu2(Me-L)(N3)4]n (2), and [Mn(L)(N3)2]n (3) have been synthesized structurally characterized, their magnetic properties studied, where L Me-L are 2-(pyrazol-1-ylmethyl)pyridine 2-(3-methylpyrazol-1-ylmethyl)pyridine, respectively. Compound 1 consists 1D chains in which the Cu(II) ions with a square pyramidal geometry alternately bridged by an end-to-end (EE) end-on (EO) azido ligands, both adopting...

A new benzenimidazole-functionalized imidazolium-based N-heterocyclic carbene complex of Pd(II) has been prepared from facile transmetalation via a Ag(I) precursor. The latter was obtained condensation reaction between Ag2O and benzenimidazolium salt. Single-crystal X-ray crystallography revealed an unusual trinuclear Ag3Cl2(μ-Cl)(μ-N-C)2 (N-C = 3-methyl-1-(1-ethyl-2-methylbenzoyl)imidazolin-2-ylidene) intermediate in which the central carbene-supported is flanked by two...

A hybrid ligand, bis(2-(benzylthio)ethyl)amine (SNS), with an amine and two thioether donors reacts Cu(II) to give mononuclear [CuCl2(SNS)] (1), [CuBr2(SNS)] (2), [Cu(OTf)2(SNS)(OH2)] (3), one-dimensional Cu(I) coordination polymer [Cu2I2(SNS)]n (4). All complexes have been characterized by single-crystal X-ray diffraction analysis, 1−3 were studied EPR analysis at room temperature. Complexes 1 2 are penta-coordinated a distorted square pyramidal metal supported tridentate SNS ligand on the...

Two 3-D and one 2-D metal–organic frameworks [Cu8I8(L1)4]n (1), [Cu8I8(L2)4]n (2) [Cu4I4(L3)2]n (3) were synthesized using three novel pyridine pyrazole supported 1,2,3-triazoles, 1-(4-picolyl)-4-butyl-1H-1,2,3-triazole (L1), 1-(4-picolyl)-4-pentyl-1H-1,2,3-triazole (L2) 1-(4-picolyl)-4-(3,5-dimethylpyrazolylmethyl)-1H-1,2,3-triazole (L3). In both complexes 1 2, there co-exist a 1-D Cu(I) oligomer Cu4 tetrahedron cluster in the polymeric structures. Complex 3 shows (4, 4) net with stair-step...

Abstract N‐heterocycle‐based ligands are versatile building‐blocks for coordination oligomer and polymer assemblies of first‐row transition metals. Herein, we review recent developments in the design synthesis some nitrogen‐rich azole‐based ligands, their assembly modes oligomers polymers, potential applications resulting metallosupramolecules.

Abstract To incorporate new functionalities, various oxide materials can be composited with metal nanoparticles to form metal–oxide nanostructures, which are very promising for a wide range of applications. In this review, we summarize the recent developments in advanced synthesis structure‐diversified core–shell, yolk–shell, Janus, and their combined nanostructures. We also representative catalytic applications including organic reduction oxidation, CO 2 conversion, water–gas shift...

The growth mechanism of α-Fe2O3 nanoparticles in solution has been elucidated from a comprehensive analysis on the shape and morphology obtained particles. It is found that hydrothermal synthesis ferric chloride precursor follows two stages: initial nucleation nuclei subsequent ripening into various shapes. involves formation polynuclears hydrolysis Fe3+ salt precursors, followed by β-FeOOH nanowires with an akaganeite structure, then two-line ferrihydrite through...

Two novel pyridyl and thioether hybridised 1,2,3-triazole ligands 1-(2-picolyl)-4-(2-(methylthio)-pyridine)-1H-1,2,3-triazole (L1) 1-(4-picolyl)-4-(2-(methylthio)-pyridine)-1H-1,2,3-triazole (L2) were prepared from CuAAC click reactions. Reactions of CuI with the L1 L2 yielded two one-dimensional coordination polymers [Cu6I6(L1)2]n (1) [Cu2I2(L2)2]n (2). Single-crystal X-ray diffraction reveals that 1 2 are polymeric [Cu6I6] [Cu2I2] respectively as building blocks. Both (L1 L2) complexes (1...

Two two-dimensional azido-bridged Mn(II) coordination polymers with bidentate coligands have been synthesized and structurally characterized, their magnetic properties were studied. The complexes are of formula [Mn(bphz)(N3)2]n (1) [Mn(mipc)(N3)2]n (2), where bphz = 2-benzoylpyridine hydrazone mipc methyl imidopyrazinecarboxylate. Both consist (6,3) layers in which double end-on (EO) dimers interlinked by single end-to-end (EE) azido bridges, representing new examples the sparse 2D...

A left-handed homochiral [CuCl2(L1)]n (1) and two solvated heterochiral [CuCl2(L1)]n·n(H2O) (2) [CuBr2(L1)]n·n(MeOH) (3) one-dimensional helical copper(II) coordination polymers have been self-assembled from Cu(II) with an achiral functionalized 1,2,3-triazole (L1) (L1 = 1-(2-picolyl)-4-(1-(methoxyl)-benzotriazole)-1H-1,2,3-triazole) under different conditions. They characterized by single-crystal X-ray diffraction (XRD) analysis. Complexes 2 3 further analyzed powder XRD, thermogravimetric...

Three copper complexes of nitrogen-sulfur donor ligands, [CuBr₂(L1)] (1), [CuCl₂(L2)₂] (2) and [Cu₂I₂(L3)]n (3) (L1 = bis(2-cyclohexylsulfanylethyl)amine, L2 2-(benzylsulfanylmethyl)pyridine L3 2-(4-pyridylsulfanylmethyl)pyridine), have been synthesized characterized by single-crystal X-ray diffraction (XRD), powder XRD TGA analysis. Complexes 1 2 are mononuclear Cu(II) EPR active with distorted square-pyramidal octahedral geometry, respectively. Complex 3 is a two-dimensional tetrahedral...

Five coordination-polymers of formula [M(dca)2(bpp)]∞ [bpp is the flexible 1,3-bis(4′-pyridyl)propane ligand, dca = dicyanamido anion, M Mn (1), Co (2), Zn (3), and Cd (4a 4b)] have been synthesized structurally characterized. Compounds 1, 2, 3 4a are isomorphous consist uniform chains in which adjacent metal ions triply linked by two 1,5-dca one bpp bridges each ion octahedrally coordinated with a trans geometry. The M(dca)2 chain motif adopts sinusoidal topology M(dca)2M rings boat...

Three dinuclear cobalt(II) and copper(II) complexes with double end-on (EO) azido bridges, [Co2(DMP)2(N3)4] (1), [Cu2(DMP)2(N3)4] (2) [Cu2(PAP)2(N3)4] (3) (DMP = 2-(3,5-dimethylpyrazol-1-ylmethyl)pyridine; PAP 1-phenyl-2-(2-pyridyl)-1-azapropylene) have been synthesized characterized by single-crystal X-ray diffraction magnetic analyses. The EPR spectra of powder samples for the two also examined at room temperature 77 K, respectively. In isomorphous 1 2, metal ions are penta-coordinated...

A water-compatible Pd(II) pincer with a hybrid [SNS]-donor set, [L1PdCl]Cl·2H2O [L1 = bis-(2-(i-butylsulfanyl)-ethyl)-amine] has been isolated and crystallographically characterized; its solid lattice at 223 K contains ladder-like water polymer of tetramers extensive H-bonding exists among the cation, anion cluster, this water-soluble complex is active in Suzuki–Miyaura coupling phenylboronic acid selected aryl bromides 75 °C.