catena‐Poly[[[triaqua­sulfato­cobalt(II)]‐μ‐4,4′‐bipyridine] ethane‐1,2‐diol solvate]

In the title compound, {[Co(SO₄)(C₁₀H₈N₂)(H₂O)₃]·C₂H₆O₂}_n, each Co^II center is octa­hedrally coordinated by two N atoms from two bridging 4,4′‐bipyridine (bipy) ligands and four O atoms, one from a monodentate sulfate ligand and three from aqua ligands. The bipy ligands occupy special positions of site symmetry and bridge adjacent cobalt(II) centers to form one‐dimensional linear coordination chains. Adjacent chains are arranged in a cross‐like fashion around the mid‐point of the bipy ligands, resulting in a three‐dimensional supra­molecular array.     

catena‐Poly[[[N,N′‐bis­(salicyl­idene)propane‐1,3‐diaminato]cobalt(III)]‐μ‐azido] and catena‐poly[[[N,N′‐bis(salicyl­idene)propane‐1,3‐diaminato]cobalt(III)]‐μ‐thio­cyanato]

The two title complexes, catena‐poly[[{2,2′‐[1,3‐propane­diylbis(nitrilo­methyl­idyne)]diphenolato}cobalt(III)]‐μ‐azido], [Co(C₁₇H₁₆N₂O₂)(N₃)]_n, (I), and catena‐poly[[{2,2′‐[1,3‐propane­diylbis(nitrilo­methyl­idyne)]diphenolato}cobalt(III)]‐μ‐thio­cyanato], [Co(C₁₇H₁₆N₂O₂)(NCS)]_n, (II), are isomorphous polynuclear cobalt(III) compounds. In both structures, the Co^III atom is six‐coordinated in an octa­hedral configuration by two N atoms and two O atoms of one Schiff base, and two terminal N or S atoms from two bridging ligands. The [N,N′‐bis­(salicyl­idene)propane‐1,3‐diaminato]cobalt(III) moieties are linked by the bridging ligands, viz. azide in (I) and thio­cyanate in (II), giving zigzag polymeric chains with backbones of the type [–Co—N—N—N—Co]_n in (I) or [–Co—N—C—S—Co]_n in (II) running along the c axis.     

catena‐Poly[[bis[pentaaquaerbium(III)]‐μ‐benzenehexacarboxylato] tetrahydrate]

The title compound is composed of one‐dimensional polymeric {[Er₂(C₁₂O₁₂)(H₂O)₁₀]·4H₂O}_n chains containing Er in a slightly distorted antiprismatic eightfold coordination. The benzene­hexa­carboxyl­ate ion is located about an inversion centre. Water mol­ecules of crystallization, linked by hydrogen bonding to water mol­ecules of the rare earth coordination spheres or the carboxyl­ate groups of the organic ligands, fill the space generated by the packing of the separated chains.     

catena‐Poly[[diaquazinc(II)]‐μ‐4,4′‐sulfonyldibenzoato‐κ2O:O′]

The title compound, [Zn(C₁₄H₈O₆S)(H₂O)₂]_n, is the first reported metal complex of the 4,4′‐sulfonyldibenzoate anion. The structure comprises zigzag chains of alternating [Zn(H₂O)₂]²⁺ and sulfonyldibenzoate units, the central Zn and S atoms of which lie on crystallographic twofold axes. The Zn^II centre occupies a strongly distorted tetrahedral environment [O—Zn—O = 83.30 (7)–136.19 (8)°], coordinated by the two water O atoms [Zn—O = 1.986 (2) Å] and one O atom from each of two carboxylate groups [Zn—O = 1.9942 (19) Å], with much longer contacts to the other O atoms of these carboxylates [Zn—O = 2.528 (2) Å]. Hydrogen bonds between carboxylate O atoms and coordinated water molecules in adjacent chains lead to the formation of a three‐dimensional network structure.     

catena‐Poly[[[tetra­aqua­zinc(II)]‐μ‐4,4′‐bipyridine] bis­(4‐hydroxy­benzene­sulfonate) trihydrate]

In the title compound, {[Zn(C₁₀H₈N₂)(H₂O)₄](C₆H₅O₄S)₂·3H₂O}_n, the Zn atom, the bipyridine ligand and one of water mol­ecules are located on twofold rotation axes. The Zn atom is coordinated by four O atoms from four water mol­ecules and two N atoms from two 4,4′‐bipyridine mol­ecules in a distorted octa­hedral geometry. The Zn²⁺ ions are linked by the 4,4′‐bipyridine mol­ecules to form a one‐dimensional straight chain propagating along the c axis. The 4‐hydroxy­benzene­sulfonate counter‐ions are bridged by the solvent water mol­ecules through hydrogen bonds to generate a two‐dimensional layer featuring large pores. In the crystal packing, the intra­layer pores form one‐dimensional channels along the c axis, in which the one‐dimensional [Zn(C₁₀H₈N₂)(H₂O)₄]²⁺ chains are encapsulated. Electrostatic inter­actions between cations and anions and extensive hydrogen bonds result in a three‐dimensional supra­molecular structure.     

catena‐Poly[[diiodo­zinc(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′]

The title compound, [ZnI₂(bipy)]_n (bipy is 4,4′‐bipyridine, C₁₀H₈N₂), has been prepared by the hydro­thermal reaction of ZnI₂ and bipy at 433 K. Each Zn atom is coordinated by two N atoms from two different bipy ligands and by two I atoms in a distorted tetra­hedral geometry, with Zn—N distances ranging from 2.068 (7) to 2.101 (8) Å and Zn—I distances ranging from 2.5471 (13) to 2.5673 (13) Å. The mol­ecular structure features a zigzag polymeric chain. Face‐to‐face π–π stacking inter­actions between adjacent bipy ligands stabilize the structure.     

Poly[[[bis­(N,N′‐dimethyl­formamide)­zinc(II)]‐μ3‐5‐hydroxy­benzene‐1,3‐dicarboxyl­ato] toluene solvate]

The title compound, {[Zn(C₈H₄O₅)(C₃H₇NO)₂]·0.5C₇H₈}_n, is a one‐dimensional coordination polymer in which the Zn atoms are linked by bridging 5‐hydroxy­benzene‐1,3‐dicarboxyl­ate ligands. These polymeric chains form two‐dimensional sheets via interchain hydrogen bonds, and these sheets, in turn, are stacked tightly with solvent toluene mol­ecules in the inter­layer space. The N,N′‐dimethyl­formamide ligands, coordinated axially to the Zn atoms, form van der Waals contacts with ligands in neighboring sheets, and enclose the guest mol­ecules.     

catena‐Poly[[[aqua(ethylenediamine‐κ2N,N′)(nitrato‐κO)copper(II)]‐μ‐4,4′‐dithiodipyridine‐κ2N:N′] nitrate monohydrate]

The title compound, {[Cu(NO₃)(C₂H₄N₂)(C₁₀H₈N₂S₂)(H₂O)]NO₃·H₂O}_n, is composed of a one‐dimensional linear coordination polymer involving cis‐protected copper(II) ions and a 4,4′‐dithiodipyridine bridging ligand. The polymeric chains run along the c‐axis direction. N—H...O and O—H...O hydrogen bonds involving the coordinating amine groups, nitrate ions and water molecules, as well as cocrystallized noncoordinating nitrate ions and water molecules, generate a three‐dimensional structure.     

Two novel glycine metal halogenides: catena‐poly[[[diaqua­nickel(II)]‐di‐μ‐glycine] dibromide] and catena‐poly[[[tetra­aqua­magnesium(II)]‐μ‐glycine] dichloride]

In catena‐poly[[[diaqua­nickel(II)]‐di‐μ‐glycine] dibromide], {[Ni(C₂H₅NO₂)₂(H₂O)₂]Br₂}_n, (I), the Ni atom is located on an inversion centre. In catena‐poly[[[tetra­aqua­magnesium(II)]‐μ‐glycine] dichloride], {[Mg(C₂H₅NO₂)(H₂O)₄]Cl₂}_n, (II), the Mg atom and the non‐H atoms of the glycine mol­ecule are located on a mirror plane. All other atoms are located on general positions. The atomic arrangements of both compounds are characterized by [MO₆] octa­hedra (M = Ni or Mg) connected by glycine mol­ecules, with the halogenide ions in the inter­stices. In (I), four of the coordinating O atoms are from glycine and two are from water mol­ecules, building layers of octa­hedra and organic mol­ecules. In (II), two of the coordinating O atoms are from glycine and four are from water mol­ecules. The octa­hedra and organic mol­ecules form chains.     

Poly[[[diaqua­dioxouranium(VI)]‐μ3‐nitriliotriacetato‐κ3O:O′:O′′] trihydrate]

The basic units in the structure of the title compound, {[UO₂(C₆H₇NO₆)(H₂O)₂]·3H₂O}_n, are ribbons in which every UO₂²⁺ cation is coordinated in a monodentate manner to three tridentate‐bridging nitriliotriacetate dianions. Hydrogen bonds bind the ribbons into a three‐dimensional structure.     

catena‐Poly[[(2,2′‐bipyridyl)oxidovanadium]‐di‐μ2‐oxido‐[(2,2′‐bipyridyl)oxidovanadium]‐μ3‐selenito‐bis[(2,2′‐bipyridyl)dioxidovanadium]‐μ3‐selenito]

In the title compound, [V₄O₈(SeO₃)₂(C₁₀H₈N₂)₄], there are two distinct vanadium coordination environments. Alternating corner‐shared VO₄N₂ octahedra and SeO₃ pyramids result in eight‐membered centrosymmetric V₂Se₂O₄ rings. In addition, pairs of V centres form centrosymmetric V₂O₆N₄ clusters via edge‐sharing. These two kinds of secondary building units are linked in an ABABAB fashion to give an infinite chain whose nature is unprecedented in Se–V–O systems.     

Poly[[(μ2‐4,4′‐bipyridine)(μ3‐5‐isonicotinamidoisophthalato)cobalt(II)] trihydrate]

In the title compound, {[Co(C₁₄H₈N₂O₅)(C₁₀H₈N₂)]·3H₂O}_n, the Co^II cation is five‐coordinated with a slightly distorted trigonal–bipyramidal geometry, and the 5‐isonicotinamidoisophthalate ligands link Co^II atoms into a layered structure. These two‐dimensional arrays are further pillared by rod‐like 4,4′‐bipyridine ligands to give a three‐dimensional framework with pcu (primitive cubic) topology. The magnetic and adsorption properties of the title compound are also discussed.     

Poly[[hexaaquabis[μ4‐2‐hydroxy‐5‐(4‐sulfonatophenyldiazenyl)benzoato]dibarium(II)] 4,4′‐bipyridine solvate]

The title compound, {[Ba₂(C₁₃H₈N₂O₆S)₂(H₂O)₆]·C₁₀H₈N₂}_n, possesses a novel two‐dimensional porous coordination network, in which each Ba^II ion is nine‐coordinated by three carboxylate O atoms, two sulfonate O atoms and four water molecules in an irregular coordination environment. Hydrogen‐bond interactions between coordinated water molecules and sulfonate/hydroxyl groups hold the network layers together and produce a three‐dimensional supramolecular architecture.     

catena‐Poly[[[triaquazinc(II)]‐μ‐2‐nitroterephthalato‐κO1:κ2O4,O4′] monohydrate]

The title complex, {[Zn(C₈H₃NO₆)(H₂O)₃]·H₂O}_n, has a one‐dimensional chain structure. The two carboxylate groups of the dianionic 2‐nitroterephthalate ligand adopt mono‐ and bidentate chelating modes. The Zn atom shows distorted octahedral coordination, bonded to three O atoms from two carboxylate groups and three O atoms of three non‐equivalent coordinated water molecules. The one‐dimensional chains are aggregated into two‐dimensional layers through inter‐chain hydrogen bonding. The whole three‐dimensional structure is further stabilized by inter‐layer hydrogen bonds.     

The coordination polymers poly[μ‐4,4′‐bipyridyl‐di‐μ‐formato‐copper(II)] and catena‐poly[[[diaqua(1‐benzofuran‐2,3‐dicarboxylato)copper(II)]‐μ‐1,2‐di‐4‐pyridylethane] dihydrate]

The title compounds, [Cu(CHO₂)₂(C₁₀H₈N₂)]_n, (I), and {[Cu(C₁₀H₄O₅)(C₁₂H₁₂N₂)(H₂O)₂]·2H₂O}_n, (II), are composed of one‐dimensional linear coordination polymers involving copper(II) ions and bidentate bipyridyl species. In (I), the polymeric chains are located on twofold rotation axes at (x, x, 0) and are arranged in layered zones centered at z = 0, , ½ and parallel to the ab plane of the tetragonal crystal. Weak coordination of the formate anions of one layer to the copper centers of neighboring layers imparts a three‐dimensional connectivity to this structure. In (II), the polymeric chains propagate parallel to the a axis of the crystal. Noncoordinated water molecules link the chains through O—H...O hydrogen bonding in directions perpendicular to c, imparting to the entire structure three‐dimensional connectivity. The metal ions adopt distorted octahedral and square‐based pyramidal environments in (I) and (II), respectively. This study indicates that, under the given conditions, extended coordination involves Cu^II centers associating with the bipyridyl ligands rather than with the competing benzofurandicarboxylate entities.     

Poly[[trans‐diaquabis(μ2‐biphenyl‐2,2′‐dicarboxylato)bis(μ2‐4,4′‐bipyridine)dicobalt(II)] biphenyl‐2,2′‐dicarboxylic acid disolvate]

In the title compound, {[Co₂(C₁₄H₈O₄)₂(C₁₀H₈N₂)₂(H₂O)₂]·2C₁₄H₁₀O₄}_n, each Co^II ion is six‐coordinate in a slightly distorted octahedral geometry. Both Co^II ions are located on twofold axes. One is surrounded by two O atoms from two biphenyl‐2,2′‐dicarboxylate (dpa) dianions, two N atoms from two 4,4′‐bipyridine (bpy) ligands and two water molecules, while the second is surrounded by four O atoms from two dpa dianions and two N atoms from two bpy ligands. The coordinated dpa dianion functions as a κ³‐bridge between the two Co^II ions. One carboxylate group of a dpa dianion bridges two adjacent Co^II ions, and one O atom of the other carboxylate group also chelates to a Co^II ion. The Co^II ions are bridged by dpa dianions and bpy ligands to form a chiral sheet. There are several strong intermolecular hydrogen bonds between the H₂dpa solvent molecule and the chiral sheet, which result in a sandwich structure.     

A polymeric ladder complex: catena‐poly­[[[μ‐4,4′‐bipyridyl‐bis­[aqua(p‐amino­benzoato)copper(II)]]‐di‐μ‐4,4′‐bipyridyl] dinitrate tetrahydrate]

The title polymeric ladder complex, {[Cu₂(C₇H₆NO₂)₂(C₁₀H₈N₂)₃(H₂O)₂](NO₃)₂·4H₂O}_n, has been synthesized and spectroscopically characterized. The polymeric nature of the compound involves two non‐equivalent 4,4′‐bipyridyl ligands acting as almost orthogonal bridges joining the metal coordination Jahn–Teller‐distorted octahedra, and forming ladders packed under the influence of hydrogen bonds involving the uncoordinated amino group of the p‐amino­­benzoate ligand, the NO₃⁻ anion and the water mol­ecules.     

catena‐Poly[[[tetrakis(μ‐acetato‐κ2O:O′)dirhodium(II)]‐μ‐[1,3‐bis(dimethylamino)propan‐2‐ol‐κ2N:N′]] tetrahydrofuran hemisolvate]

In the structure of the title compound, {[Rh₂(C₂H₃O₂)₄(C₇H₁₈N₂O)]·0.5C₄H₈O}_n or {[Rh₂(O₂CMe)₄(Hbdmap)]·0.5C₄H₈O}_n, where Hbdmap is 1,3‐bis­(dimethyl­amino)propan‐2‐ol, each Hbdmap ligand is coordinated to two [Rh₂(O₂CMe)₄] units by two N atoms, resulting in a polymeric chain structure. The observed coordination mode of the Hbdmap mol­ecule is unprecedented.     

catena‐Poly[[diaquadiisothiocyanatoiron(II)]‐μ‐4,4′‐bi‐1,2,4‐triazole]: a one‐dimensional coordination polymer

In the title complex, [Fe(NCS)₂(C₄H₂N₆)₂(H₂O)₂]_n, the Fe^II atom is on an inversion centre and the 4,4′‐bi‐1,2,4‐triazole (btr) group is bisected by a twofold axis through the central N—N bond. The coordination geometry of the Fe^II atom is elongated distorted FeN₄O₂ octahedral, where the cation is coordinated by two N atoms from the triazole rings of two btr groups, two N atoms from NCS⁻ ligands and two water molecules. Btr is a bidentate ligand, coordinating one Fe^II atom through a peripheral N atom of each triazole ring, leading to a one‐dimensional polymeric (chain) structure extending along [101]. The chains are further connected through a network of O—H...N and C—H...S hydrogen bonds.     

catena‐Poly[[[μ‐1,3‐bis(diphenylphosphanyl)propane‐κ2P:P′][O‐ethyl (4‐methoxyphenyl)phosphonodithioato‐κ2S,S′]silver(I)] chloroform monosolvate]

Reaction of a mixture of AgOAc, Lawesson's reagent [2,4‐bis(4‐methoxyphenyl)‐1,3‐dithiadiphosphetane‐2,4‐disulfide] and 1,3‐bis(diphenylphosphanyl)propane (dppp) under ultrasonic treatment gave the title compound, {[Ag(C₉H₁₂O₂PS₂)(C₂₇H₂₆P₂)]·CHCl₃}_n, a novel one‐dimensional chain based on the in situ‐generated bipodal ligand [ArP(OEt)S₂]⁻ (Ar = 4‐methoxyphenyl). The compound consists of bidentate bridging 1,3‐bis(diphenylphosphanyl)propane (dppp) and in situ‐generated bidentate chelating [ArP(OEt)S₂]⁻ ligands. The dppp ligand links the [Ag{ArP(OEt)S₂}] subunit to form an achiral one‐dimensional infinite chain. These achiral chains are packed into chiral crystals by virtue of van der Waals interactions. No π–π interactions are observed in the crystal structure.