Synthesis and Oxygen Evolution Reaction Application of a Co-Cd Based Bimetallic Metal-Organic Framework.

In the realm of renewable energy technologies, the development of efficient and durable electrocatalysts is paramount, especially for applications like electrochemical water splitting. This research focuses on synthesizing a novel bimetallic metal-organic framework (BMMOF11) using earth-abundant elements, cobalt (Co) and cadmium (Cd). BMMOF11 showcases a distinctive structure with distorted octahedral chains of CoO and CdO, linked by benzene tricarboxylic acid (BTC).

A novel cyclic dinuclear gold(I) complex induces anticancer activity an oxidative stress-mediated intrinsic apoptotic pathway in MDA-MB-231 cancer cells.

A new dinuclear cyclic gold(I) complex [Au(DCyPA)](PF), 1, based on bis[2-(dicyclohexylphosphano)ethyl]amine (DCyPA) has been synthesized and characterized by elemental analysis, IR and NMR spectroscopy, and X-ray crystallography. In the dinuclear complex cation [Au(DCyPA)], the two gold(I) ions are bridged by the ligand bis[2-(dicyclohexylphosphano)ethyl]amine (DCyPA) giving rise to a 16-membered ring centrosymmetric metallacycle. The cytotoxicity of the complex was evaluated against the triple-negative human breast cancer cells MDA-MB-231.

Fluorescein Hydrazide-Appended Metal-Organic Framework as a Chromogenic and Fluorogenic Chemosensor for Mercury Ions.

In this work, we prepared a fluorescein hydrazide-appended Ni(MOF) (Metal-Organic Framework) [Ni(BTC)(HO)]·(DMF)(HO) composite, FH@Ni(MOF). This composite was well-characterized by PXRD (powder X-ray diffraction), FT-IR (Fourier transform infrared spectroscopy), N adsorption isotherm, TGA (thermogravimetric analysis), XPS (X-ray photoelectron spectroscopy), and FESEM (field emission scanning electron microscopy). This composite was then tested with different heavy metals and was found to act as a highly selective and sensitive optical sensor for the Hg ion.

One-Dimensional Organic-Inorganic Material (CHN)BiCl: From Synthesis to Structural, Spectroscopic, and Electronic Characterizations.

The new organic-inorganic compound (CHN)BiCl (I) has been grown by the solvent evaporation method. The one-dimensional (1D) structure of the allylimidazolium chlorobismuthate (I) has been determined by single crystal X-ray diffraction. It crystallizes in the centrosymmetric space group C2/c and consists of 1-allylimidazolium cations and (1D) chains of the anion BiCl, built up of corner-sharing [BiCl] octahedra which are interconnected by means of hydrogen bonding contacts N/C-H⋯Cl.

Regioselective Synthesis of Chromones via Cyclocarbonylative Sonogashira Coupling Catalyzed by Highly Active Bridged-Bis(N-Heterocyclic Carbene)Palladium(II) Complexes.

The one-pot regioselective and catalytic synthesis of bioactive chromones and flavones was achieved via phosphine-free cyclocarbonylative Sonogashira coupling reactions of 2-iodophenols with aryl alkynes, alkyl alkynes, and dialkynes. The reactions are catalyzed by new dibromidobis(NHC)palladium(II) complexes. The new bridged ,'-substituted benzimidazolium salts (, , and ) and their palladium complexes , , and were designed, prepared, and fully characterized using different physical and spectroscopic techniques.

Synthesis of Novel Tetra(µ-Methoxo) Bridged with [Cu(II)-O-Cd(II)] Double-Open-Cubane Cluster: XRD/HSA-Interactions, Spectral and Oxidizing Properties.

A new double-open-cubane core Cd(II)-O-Cu(II) bimetallic ligand mixed cluster of type [ClCuCd(NNO)(NN)(NO)].CHCN was made available in EtOH/CHCN solution. The 1-hydroxymethyl-3,5-dimethylpyrazole (NNOH) and 3,5-dimethylpyrazole (NNH) act as N,O-polydentate anion ligands in coordinating the Cu(II) and Cd(II) centers.

Soft Heteroleptic N-Heterocyclic Carbene Palladium(II) Species for Efficient Catalytic Routes to Alkynones via Carbonylative Sonogashira Coupling.

,'-Substituted di-isopropyl (), benzyl-isopropyl (), and adamantyl-isopropyl () benzimidazolium salts react with palladium(II) bromide in pyridine to afford the corresponding -dibromidopyridinepalladium(II) complexes , , and in high yields. A distorted square planar geometry for and was confirmed by single-crystal X-ray diffraction. The palladium(II) complexes show a remarkably higher catalytic activity and selectivity, compared to the literature data, in carbonylative Sonogashira coupling reactions of aryl iodides and aryl diiodides with aryl alkynes, alkyl alkynes, and dialkynes.

Broad-band luminescence involving fluconazole antifungal drug in a lead-free bismuth iodide perovskite: Combined experimental and computational insights.

The synthesis and characterization of a lead-free perovskite-type material, (CHNFO) BiI is reported. It exhibits a zero-dimensional (0D) BiI octahedral unit, surrounded by a flexible tripodal antifungal ligand (HFluconazole). The several intermolecular interactions of the independent cation and the bismuth iodide octahedra were tested via the Hirshfeld surface analysis.

Single-Crystal-to-Single-Crystal Transformation of Hydrogen-Bonded Triple-Stranded Ladder Coordination Polymer via Photodimerization Reaction.

A one-dimensional hydrogen-bonded triple-stranded ladder coordination polymer [Cd(bpe)(NO)(HO)] () (where bpe = -1,2-bis(4-pyridyl)ethylene) containing three parallel C═C double bonds was synthesized. This compound undergoes photochemical [2 + 2] cycloaddition and produces -tetrakis(4-pyridyl)cyclobutane (-tpcb) in up to 67% yield via Single-Crystal-to-Single-Crystal (SCSC) transformation. Triple-stranded ladder-like structures have never before displayed such a kind of SCSC transformation.

Crystal structure of di-chlorido-bis-(1,3-diazinane-2-thione-κS)cadmium.

In the structure of the title compound, [CdCl2(C4H8N2S)2], the Cd(II) atom is coordinated by two chloride ions and two 1,3-diazinane-2-thione (Diaz) mol-ecules through their S atoms. The geometry around the Cd(II) atom is distorted tetra-hedral, with bond angles in the range 101.55 (7)-117.

{[2-Methyl-2-(phen-oxy-meth-yl)propane-1,3-di-yl]bis-(-oxy)}di-benzene.

The title compound, C23H24O3, was obtained in a one-step (60% yield) synthesis from 1,1,1-tris(hydroxymethyl)ethane. It features a tripodal ligand capable of complexing metal centres. One of the three conformations involving the methyl group, the central C-C bond and the phenoxy substituents is antiperiplanar while the two others are synclinal [the corresponding C-C-C-O torsion angles are -174.

N,N,N',N'-Tetra-methyl-ethylene-diammonium tetra-chlorido-zincate.

The asymmetric unit of the title compound, (C6H18N2)[ZnCl4], consists of one tetra-chlorido-zincate anion and two half-N,N,N'N'-tetra-methyl-ethylenedi-ammonium cations. Each of the two di-ammonium cations is located about an inversion center and one of them is disordered over two sets of sites in a 0.780 (17):0.

(Acetato-κO)(acetato-κO,O')bis-(1,3-diazinane-2-thione-κS)cadmium(II).

In the title complex, [Cd(CH(3)COO)(2)(C(4)H(8)N(2)S)(2)], the Cd(II) cation is coordinated by three acetate O atoms and two S atoms of Diaz [Diaz = 1,3-diazinane-2-thione = 3,4,5,6-tetra-hydro-pyrimidine-2(1H)-thione]. The Cd(II) coordination is augmented by one considerably longer Cd-O bond of 2.782 (3) Å to a carboxyl-ate O atom.

catena-Poly[[[aqua-(1,10-phenanthroline-κ²N,N')zinc]-μ-acetyl-ene-dicarboxyl-ato-κ²O¹:O²] monohydrate].

In the title complex, {[Zn(C₄O₄)(C₁₂H₈N₂)(H₂O)]·H₂O}(n), the penta-coordinated Zn(II) ion is bound to two N atoms of the 1,10-phenanthroline ligand, two O atoms from two bridging acetyl-enedicarboxyl-ate anions and a water O atom in a distorted trigonal-bipyramidal geometry. The crystal structure is characterized by polymeric zigzag chains running parallel to [2-10] and is stabilized by O-H⋯O hydrogen bonds.

μ-2,2'-Bipyrimidine-κ(4)N(1),N(1'):N(3),N(3')-bis-[iodido(triphenyl-phosphane-κP)copper(I)] dimethyl-formamide disolvate.

In the title binuclear centrosymmetric complex, [Cu(2)I(2)(C(8)H(6)N(4))(C(18)H(15)P)(2)]·2C(3)H(7)NO, the bis-bidentate 2,2'-bipyrimidine ligand bridges two copper(I) ions, each additionally bound to an iodide anion and a triphenyl-phosphane ligand in a distorted tetra-hedral N(2)IP geometry. The complex mol-ecules pack in columns parallel to [100] generating cavities occupied by dimethyl-formamide solvent mol-ecules. Weak C-H⋯I hydrogen-bonding inter-actions help to stabilize the crystal packing.

Racemic methyl 3,10-dioxa-2-aza-tri-cyclo-[6.2.1.0]undecane-4-carboxyl-ate.

The structure of the racemic title compound, C(10)H(15)NO(4), consists of a tricyclic skeleton comprising a six-membered piperidine ring and five-membered isoxazolidine and tetra-hydro-furan rings. The piperidine ring adopts a distorted chair conformation, while the isoxazolidine and tetra-hydro-furan rings have envelope conformations.

Dicyanidobis(thio-urea-κS)cadmium(II) monohydrate.

In the title compound, [Cd(CN)(2)(CH(4)N(2)S)(2)]·H(2)O, the Cd atom lies on a twofold rotation axis and is bonded to two S atoms of thio-urea and two C atoms of the cyanide anions in a distorted tetra-hedral environment. The crystal structure is stabilized by N-H⋯N(CN), N-H⋯O, O-H⋯N and N-H⋯S hydrogen bonds.

Dichloridobis(N,N,N',N'-tetra-methyl-thio-urea-κS)mercury(II).

In the title compound, [HgCl(2)(C(5)H(12)N(2)S)(2)], the Hg(II) atom is located on a twofold rotation axis and is bonded in a distorted tetra-hedral coordination mode to two chloride ions and to two tetra-methyl-thio-urea (tmtu) mol-ecules through their S atoms. The crystal structure is stabilized by C-H⋯N and C-H⋯S hydrogen bonds.

Diiodidobis(N,N,N',N'-tetra-methyl-thio-urea-κS)cadmium(II).

In the title compound, [CdI(2)(C(5)H(12)N(2)S)(2)], the Cd(II) ion is located on a twofold rotation axis and is coordinated in a distorted tetra-hedral mode by two iodide ions and by two tetra-methyl-thio-urea (tmtu) ligands through their S atoms. The crystal structure is stabilized by C-H⋯N and C-H⋯S hydrogen bonds.

Dibromidobis(N,N,N',N'-tetra-methyl-thio-urea-κS)cadmium(II).

In the title compound, [CdBr(2)(C(5)H(12)N(2)S)(2)], the Cd(II) atom lies on a twofold rotation axis. It exhibits a distorted tetra-hedral coordination environment defined by two S atoms of two tetra-methyl-thio-urea (tmtu) ligands and two bromide ions. The crystal structure is consolidated by C-H⋯N and C-H⋯S hydrogen bonds.

1,4-Bis(4-amino-phen-oxy)benzene.

The title compound, C(18)H(16)N(2)O(2), is a precusor for the synthesis of polyimides. The mol-ecule is located on a crystallographic inversion center and the terminal amino-phen-oxy rings are almost perpendicular to the central benzene ring with a dihedral angle of 85.40 (4)°.

2-Isoxazolidineethanols: an NMR study of the effect of intramolecular H-bonding on the population of nitrogen invertomers and inversion process.

A series of (betaR,5R)- and (betaR,5S)-2,5-disubstituted isoxazolidines: 5-(substituent)-beta-phenyl-2-isoxazolidineethanols, have been prepared by asymmetric nitrone cycloaddition reactions and their NMR spectra recorded over a wide range of temperatures. The spectra at low temperatures indicate the presence of the (betaR,5S) diasteromer almost exclusively as a single invertomer having trans disposition of the substituents at N(2) and C(5), while the (betaR,5R) diasteromer remained as a mixture of two interconverting invertomers in deuterated chloroform. The effect of H-bonding - intramolecular in CDCl(3) and intermolecular in CD(3)OD - on the population ratio of the invertomers and nitrogen inversion process has been investigated.

Metal-dependent ferro- versus antiferromagnetic interactions in molecular crystals of square Planar (M(II) imino-nitroxide radical) complexes (M = Pt, Pd).

The synthesis and structural, spectral, and magnetic characterizations of two new complexes of formula [Pt(IM(2)Py)Cl(2)] (A) and [Pd(IM(2)Py)Cl(2)] (B) are reported. IM(2)Py stands for the imino-nitroxide radical ligand 2-(ortho-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl. Their crystal structures were solved at room temperature and at 120 K revealing structural phase transitions from pseudo-orthorhombic to monoclinic systems for the two compounds which remain isostructural in the whole temperature range explored.

Temperature dependence of the crystal lattice organization of coordination compounds involving nitronyl nitroxide radicals: a magnetic and structural investigation.

Four new mononuclear complexes of formula Cd(PN)(4)(NCS)(2) (A), Cd(PNN)(4)(N(3))(2) (B), Zn(PNN)(4)(N(3))(2) (C), and Zn(PNN)(2)(NCS)(2) (D), where PNN stands for 2-(4-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide and PN for 2-(4-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl, were synthesized and structurally and magnetically characterized. The X-ray structures of compounds B and C were also determined at 90 K. Compounds A[bond]C crystallize in the triclinic space group P 1 macro (No.