Jin-Niu Tang

Synthesis, crystal structures and properties of two Cd(II) complexes based on Zaltoprofen

Abstract Two metal-organic coordination complexes, [Cd(Zaltoprofen)(phen)]n (1) and [Cd(Zaltoprofen)(btz)]n (2) (where Zaltoprofen = 5-(1-carboxyethyl)-2-(phenylthio)phenylacetic acid, phen = 1,10-phenanthroline, btz = thiabendazole), have been synthesized by reaction of Cd(NO3)2 with Zaltoprofen, 1,10-phenanthroline or thiabendazole under hydrothermal conditions and characterized by single crystal X-ray diffraction, IR spectra, elemental analyses, powder X-ray diffraction (XRD), electronic spectra (UV-vis) and fluorescent properties. Compound 1 crystallizes in the monoclinic P21/c space group and 2 in the monoclinic system with space group P21/n. [Cd(Zaltoprofen)(phen)]n (1) features a 1-D zigzag chain. The zigzag chains are linked to form a 2-D layer through π–π stacking interactions. [Cd(Zaltoprofen)(btz)]n (2) displays a 2D net with alternately arranged left- and right-handed helical chains.

Poly[[μ(2)-aqua-μ(3)-(4-carb-oxy-2-propyl-1H-imidazole-5-carboxyl-ato-κN,O:O:O)-sodium] hemihydrate].

In the title compound, {[Na(C8H9N2O4)(H2O)]·0.5H2O}n, the Na+ ion is coordinated by two bridging water molecules, one N atom and three O atoms from three 4-carboxy-2-propyl-1H-imidazole-5-carboxylate (H2pimdc) ligands. Adjacent Na+ ions are linked alternately by two water O atoms and two carboxy O atoms into a chain along [001]. These chains are connected through the coordination of the carboxylate O atoms to the Na+ ions, forming a three-dimensional structure. An intramolecular O—H⋯O hydrogen bond and intermolecular N—H⋯O and O—H⋯O hydrogen bonds are present in the crystal structure.

Synthesis, Structures, and Properties of Two Zinc(II) and Cadmium(II) Supramolecular Complexes Based on Diphenic Acid

Two novel binuclear metal-organic coordination complexes [Zn2(dpa)2(phen)2(H2O)2] (1), [Cd2(dpa)2(btz)2(H2O)2] (2) (where H2dpa = diphenic acid, phen = 1,10-phenanthroline, btz = thiabendazole) have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, spectral method (IR), elemental analysis, and fluorescent properties. Compound 1 crystallizes in the triclinic P-1 space group while compound 2 in the monoclinic system with space group P2(1)/n. The binuclear cluster are stabilized by O‒HO hydrogen bond and further fitted together into 3-D supramolecular network by π–π stacking interactions and hydrogen bonds. The luminescence measurements reveal that two complexes exhibit strong fluorescent emissions in the solid state at room temperature.

Synthesis, Crystal Structure of Three Novel Manganese(II) Complexes With 2-propyl-4,5-imidazoledicarboxylic Acid

Three novel complexes {[Mn3(pimdc)2(H2O)5]·H2O}n (1), [Mn(H2pimdc)2(2,2′-bpy)] (2), and [Mn3(Hpimdc)2(H2pimdc)2 (4,4′-bpy)2(H2O)2]n (3) (where H3pimdc = 2-propyl-4,5-imida- zoledicarboxylate; bpy = 2,2/4,4-bipyridine) have been prepared and characterized by infrared spectrum, thermal analysis, and X-ray crystal diffraction. H3pimdc forms three kinds of coordination modes due to the different pH of solution. In 1, two Mn(II) centers connected through the coordinated ligands of H3pimdc to form a 3D framework. Complex 2 forms a 3D framework through hydrogen bonds and C–H···π interactions. In 3, 1D chains are engaged in hydrogen-bonding interactions with coordinated water O9 and carboxylate oxygens O4 and O6 forming a higher dimensional structure. Supplemental materials are available for this article. Go to the publishers online edition of Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry to view the supplemental file.

Synthesis, Crystal Structure, and Properties of Two Novel Complexes Based on Zaltoprofen Ligand

Two novel metal-organic coordination complexes [Cd(Zalto profen)2(H2O)3](H2O) (1), [Zn(Zaltoprofen)(H2O)]n (2) (where zaltoprofen = 5-(1-carboxyethyl)-2-(phenylthio)phenylacetic acid) have been synthesized under normal conditions and hydrothermal conditions, respectively. And characterized by single crystal X-ray diffraction, elemental analysis, spectral method (IR), powder X-ray diffraction (XRD), and fluorescent properties. Compound 1 crystallizes in the monoclinic Cc space group while compound 2 in the monoclinic system with space group P21 /c. [Cd(Zaltoprofen)2(H2O)3](H2O) (1) features 0-D structural, the hydrogen-bonds play a vital role in determining the crystal packing and construction of the extended 3-D supramolecular network. [Zn(Zaltoprofen)(H2O)]n (2) displays a 2D net with alternately arranged left- and right-handed helical chains. The O–H···O hydrogen bonding play an important role in stabilizing the structure. Supplemental materials are available for this article. Go to the publishers online edition of Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry to view the supplemental file.

Hydrothermal synthesis, crystal structure, and properties of two novel binuclear complexes based on Zaltoprofen and 2,2′-bipyridine ligands

Two novel binuclear metal-organic coordination complexes [M2(Zaltoprofen)2(Bipy)2] [M = Cd (I), Zn (II); Zaltoprofen = 5-(1-carboxyethyl)-2-(phenylthio)phenylacetic acid, Bipy = 2,2′-bipyridine) have been synthesized under hydrothermal conditions and characterized by single crystal X-ray diffraction, elemental analysis, IR and electronic spectroscopy, powder X-ray diffraction, and fluorescent properties. Complexes I, II crystallize isomorphously in the monoclinic space group P21/c. Structural analysis shows that the M(II) atom of I and II is coordinated with four oxygen atoms from the carboxyl group of the Zaltoprofen together with two nitrogen atoms from the Bipy. The 3D structures of the complexes are stabilized by π-π stacking interactions.

A Novel Supramolecular Complex Based on Zaltoprofen Ligand: Synthesis, Crystal Structure, and Properties

A novel metal-organic supramolecular complex [Zn2 (Zaltoprofen)2(phen)2] (where Zaltoprofen = 5-(1-carboxyethyl)-2-(phenylthio)phenylacetic acid, phen = 1,10-phenanthroline) has been synthesized under hydrothermal condition and characterized by single crystal X-ray diffraction, elemental analysis, spectral method (IR), powder X-ray diffraction (XRD), electronic Spectra (UV-vis), and fluorescent properties. The compound crystallizes in the monoclinic P2(1)/c space group. [Zn2(Zaltoprofen)2(phen)2] features 0-D structural, the π–π stacking interactions and C‒H···O hydrogen-bonds play a vital role in determining the crystal packing and construction of the extended 3-D supramolecular network.

Poly[[μ-chlorido-μ-[2-(2,4-di­fluoro­phen­yl)-1,3-bis­(1,2,4-triazol-1-yl)propan-2-ol-κ2N4:N4′]-zinc] chloride dihydrate]

The title compound, {[ZnCl(C13H12F2N6O)2]Cl·2H2O}n, is a two-dimensional coordination polymer. The ZnII atom is six-coordinated by four N atoms from four 2-(2,4-difluorophenyl)-1,3-bis(1,2,4-triazol-1-yl)propan-2-ol (HFlu) ligands and by two Cl atoms in a distorted octahedral geometry. Two Cl atoms bridge two ZnII atoms, forming a centrosymmetric dinuclear unit. The HFlu ligands connect the dinuclear units into a 44 net parallel to (001) when the dinuclear unit is considered as a node. O—H⋯O and O—H⋯Cl hydrogen bonds link the cationic layer, free chloride anions and lattice water molecules. Intralayer π–π interactions between the triazole rings are observed [centroid–centroid distance = 3.716 (6) Å].

catena-Poly[(di­aqua­cadmium)-μ-iminodi­acetato-κ4O,N,O′:O′′]

In the title compound, [Cd(C4H5NO4)(H2O)2]n, the CdII atom exhibits a distorted octahedral coordination geometry, defined by one N atom and three O atoms from two iminodiacetate (IDA) ligands and two water molecules. The tridentate IDA ligand additionally bridges via one of its carboxylate O atoms to another CdII atom, thus forming a zigzag chain along [001]. A three-dimensional network is completed by intermolecular O—H⋯O and N—H⋯O hydrogen bonds.

Crystal structure of catena-(hexaaqua-1κ6O)(chloro-2κCl)bis(μ- pyridine-2,5-dicarboxylato-1κO:2κ2N,O')gadolinium(III)zinc(II), GdZn(H2O)6(C7H3NO4)2Cl

C14H24ClGdN2O17Zn, orthorhombic, Pbca (no. 61), a = 13.651(8) Å, b = 15.501(9) Å, c = 22.65(1) Å, V = 4791.8 Å, Z = 8, Rgt(F) = 0.032, wRref(F ) = 0.085, T = 296 K.