scholarly journals Crystal structure of catena-poly[[[(2-ethoxypyrazine-κN)copper(I)]-di-μ2-cyanido] [copper(I)-μ2-cyanido]]

2019 ◽  
Vol 75 (11) ◽  
pp. 1797-1800
Author(s):  
Sofiia V. Partsevska ◽  
Valerii Y. Sirenko ◽  
Kateryna V. Terebilenko ◽  
Sergey O. Malinkin ◽  
Il'ya A. Gural'skiy
Keyword(s):  
Polymeric Chain ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Polymeric Chains ◽  
Metal Organic ◽  
Coordination Framework ◽  
Type C ◽  
C And N ◽  
Cyanide Ligands ◽  
Cyano Groups

In the asymmetric unit of the title coordination compound, {[Cu(CN)(C4H3OC2H5N2)][Cu(CN)]} n , there are two Cu atoms with different coordination environments. One CuI ion is coordinated in a triangular coordination geometry by the N atom of the 2-ethoxypyrazine molecule and by two bridging cyanide ligands, equally disordered over two sites exchanging C and N atoms, thus forming polymeric chains parallel to the c axis. The other Cu atom is connected to two bridging cyanide groups disordered over two sites with an occupancy of 0.5 for each C and N atom, and forming an almost linear polymeric chain parallel to the b axis. In the crystal, the two types of chain, which are orthogonal to each other, are connected by cuprophilic Cu...Cu interactions [2.7958 (13) Å], forming two-dimensional metal–organic coordination layers parallel to the bc plane. The coordination framework is further stabilized by weak long-range (electrostatic type) C—H...π interactions between cyano groups and 2-ethoxypyrazine rings.

scholarly journals Crystal structure ofcatena-poly[[diaquacobalt(II)]-bis[μ-5-(4-carboxyylatophenyl)picolinato]-κ3N,O2:O5;κ3O5:N,O2-[diaquacobalt(II)]-μ-1-[4-(1H-imidazol-1-yl)phenyl]-1H-imidazole-κ2N3:N3′]

2015 ◽  
Vol 71 (7) ◽  
pp. m145-m146
Author(s):  
Guo-Wang Xu ◽  
Ye-Nan Wang ◽  
Hai-Bing Wang ◽  
Zhong-Long Wang
Keyword(s):  
Crystal Structure ◽  
Three Dimensional ◽  
Polymeric Chain ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Supramolecular Architecture ◽  
Asymmetric Unit ◽  
Polymeric Chains ◽  
Coordination Water ◽  
Binuclear Unit

The asymmetric unit of the title polymeric CoIIcomplex, [Co2(C13H7NO4)2(C12H10N4)(H2O)4]n, contains a CoIIcation, a 5-(4-carboxylatophenyl)picolinate dianion, two coordination water molecules and half of 1-[4-(1H-imidazol-1-yl)phenyl]-1H-imidazole ligand. The CoIIcation is coordinated by two picolinate dianions, two water molecules and one 1-[4-(1H-imidazol-1-yl)phenyl]-1H-imidazole molecule in a distorted N2O4octahedral coordination geometry. The two picolinate dianions are related by an inversion centre and link two CoIIcations, forming a binuclear unit, which is further bridged by the imidazole molecules, located about an inversion centre, into the polymeric chain propagating along the [-1-11] direction. In the crystal, the three-dimensional supramolecular architecture is constructed by O—H...O hydrogen bonds between the coordinating water molecules and the non-coordinating carboxylate O atoms of adjacent polymeric chains.

Poly[tetraamminecopper(II) bis[tris(μ2-cyanido-κ2C,N)dicuprate(I)]]: a unique CuI–CuIImixed-valence complex containing anionic cuprous cyanide layers and [Cu(NH3)4]2+cations

2012 ◽  
Vol 68 (2) ◽  
pp. m45-m47 ◽  
Author(s):  
Li-Na Jia ◽  
Lei Hou
Keyword(s):  
Hydrogen Bonding ◽  
Mixed Valence ◽  
Planar Geometry ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Anionic Layer ◽  
Cuprous Cyanide ◽  
Cyanide Ligands

The title compound, {[Cu(NH3)4][Cu(CN)3]2}n, features a CuI–CuIImixed-valence CuCN framework based on {[Cu2(CN)3]−}nanionic layers and [Cu(NH3)4]2+cations. The asymmetric unit contains two different CuIions and one CuIIion which lies on a centre of inversion. Each CuIion is coordinated to three cyanide ligands with a distorted trigonal–planar geometry, while the CuIIion is ligated by four ammine ligands, with a distorted square-planar coordination geometry. The interlinkage between CuIions and cyanide bridges produces a honeycomb-like {[Cu2(CN)3]−}nanionic layer containing 18-membered planar [Cu(CN)]6metallocycles. A [Cu(NH3)4]2+cation fills each metallocyclic cavity within pairs of exactly superimposed {[Cu2(CN)3]−}nanionic layers, but there are no cations between the layers of adjacent pairs, which are offset. Pairs of N—H...N hydrogen-bonding interactions link the N—H groups of the ammine ligands to the N atoms of cyanide ligands.

scholarly journals catena-Poly[[[aquamanganese(III)]-μ-(E)-5-bromo-N-[2-(5-bromo-2-oxidobenzylideneamino)-4-nitrophenyl]-2-oxidobenzamidato]N,N-dimethylfomamide monosolvate]

2012 ◽  
Vol 68 (4) ◽  
pp. m365-m366
Author(s):  
Abeer Mohamed Farag ◽  
Teoh Siang Guan ◽  
Hasnah Osman ◽  
Madhukar Hemamalini ◽  
Hoong-Kun Fun
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Equatorial Plane ◽  
Three Dimensional ◽  
Title Complex ◽  
Polymeric Chain ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Dimensional Network

The asymmetric unit of the title complex, {[Mn(C20H10Br2N3O5)(H2O)]·(CH3)2NCHO}n, consists of one MnIIIion, one (E)-5-bromo-N-[2-(5-bromo-2-oxidobenzylideneamino)-4-nitrophenyl]-2-oxidobenzamidate ligand (Schiff base), one water molecule and anN,N-dimethylformamide molecule. The coordination geometry around the MnIIIion is a distorted octahedron, being surrounded by two O and two N atoms from the Schiff base, which are positioned in the equatorial plane. The water molecule and the O atom of the carbonyl group from the adjacent MnIIIcomplex are situated at the axial positions, leading to a polymeric chain along thecaxis. In the crystal, the complex andN,N-dimethylformamide molecules are connectedviaO—H...O, C—H...O and C—H...Br hydrogen bonds, forming a three-dimensional network.

Poly[tetrachlorido{μ4-tetrakis[(imidazol-1-yl)methyl]methane-κ4N3:N3′:N3′′:N3′′′}dizinc(II)] exhibiting a three-dimensional diamond topology

2014 ◽  
Vol 70 (2) ◽  
pp. 194-197 ◽  
Author(s):  
Jian Su ◽  
Liu-Di Yao ◽  
Jun Zhang ◽  
Jie-Ying Wu ◽  
Yu-Peng Tian
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
Zinc Nitrate ◽  
Coordination Geometry ◽  
Tetrahedral Coordination ◽  
Asymmetric Unit ◽  
Metal Organic ◽  
Acidic Conditions ◽  
Topological Framework ◽  
Distorted Tetrahedral Coordination

The title novel noncentrosymmetric metal–organic framework, [Zn2Cl4(C17H20N8)]n, was prepared solvothermally using the tetradentate tetrakis[(imidazol-1-yl)methyl]methane (tiym) linker in the presence of zinc nitrate under acidic conditions. The asymmetric unit contains one ZnIIcation, two Cl−anions and a quarter of each of two symmetry-independent tiym ligands. Each ZnIIcation is four-coordinated by two Cl−anions and two imidazole N atoms from two tiym ligands, forming a distorted tetrahedral coordination geometry. The tetrahedral tetradentate tiym linker has a quaternary C atom located on a crystallographic \overline{4} axis. With its four peripheral imidazole N atoms, the linkers are bridged by four [ZnCl2] subunits to generate a three-dimensional diamond topological framework, which is represented by the Schläfli symbol {66}. To the best of our knowledge, the title compound is the first example of a non-interpenetrating diamond net based on the tiym ligand.

Supramolecular architecture of metal–organic frameworks involving dinuclear copper paddle-wheel complexes

2013 ◽  
Vol 69 (12) ◽  
pp. 1498-1502 ◽  
Author(s):  
Sundaramoorthy Gomathi ◽  
Packianathan Thomas Muthiah
Keyword(s):  
Metal Organic Framework ◽  
Solvent Molecule ◽  
Three Dimensional ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Dinuclear Copper ◽  
Paddle Wheel ◽  
Water Solvent ◽  
Carboxylate Groups ◽  
Metal Organic

The two centrosymmetric dinuclear copper paddle-wheel complexes tetrakis(μ-4-hydroxybenzoato-κ2O:O′)bis[aquacopper(II)] dimethylformamide disolvate dihydrate, [Cu2(C7H5O3)4(H2O)2]·2C3H7NO·2H2O, (I), and tetrakis(μ-4-methoxybenzoato-κ2O:O′)bis[(dimethylformamide-κO)copper(II)], [Cu2(C8H7O3)4(C3H7NO)2], (II), crystallize with half of the dinuclear paddle-wheel cage unit in the asymmetric unit and, in addition, complex (I) has one dimethylformamide (DMF) and one water solvent molecule in the asymmetric unit. In both (I) and (II), two CuIIions are bridged by foursyn,syn-η1:η1:μ carboxylate groups, showing a paddle-wheel cage-type structure with a square-pyramidal coordination geometry. The equatorial positions of (I) and (II) are occupied by the carboxylate groups of 4-hydroxy- and 4-methoxybenzoate ligands, and the axial positions are occupied by aqua and DMF ligands, respectively. The three-dimensional supramolecular metal–organic framework of (I) consists of three differentR22(20) and anR44(36) ring motif formedviaO—H...O and OW—HW...O hydrogen bonds. Complex (II) simply packs as molecular species.

The crystal structure and photocatalytic properties of a three-dimensional cadmium(II) metal–organic framework: poly[bis(μ3-benzene-1,2-dicarboxylato)[μ2-1,4-bis(pyridin-3-ylmethoxy)benzene]dicadmium(II)]

2016 ◽  
Vol 72 (3) ◽  
pp. 174-178 ◽  
Author(s):  
Cai-Xia Yu ◽  
Yan-Ping Gao ◽  
Xiao-Qing Cui ◽  
Meng-Jiao Guo ◽  
Lei-Lei Liu
Keyword(s):  
Organic Contaminants ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Green Technology ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
Dimensional Network ◽  
Metal Organic

Photocatalysis is a green technology for the treatment of all kinds of contaminants and has advantages over other treatment methods. Recently, much effort has been devoted to developing new photocatalytic materials based on metal–organic frameworks for use in the degradation of many kinds of organic contaminants. With the aim of searching for more effective photocatalysts, the title three-dimensional coordination polymer, [Cd2(C8H4O4)2(C18H16N2O2)]n, was prepared. The asymmetric unit contains one CdIIcation, one benzene-1,2-dicarboxylate anion (denotedL2−) and half of a centrosymmetric 1,4-bis(pyridin-3-ylmethoxy)benzene ligand (denoted bpmb). Each CdIIcentre is five-coordinated by four carboxylate O atoms from twoL2−ligands and by one N atom from a bpmb ligand, forming a disordered pentagonal pyramidal coordination geometry. The CdIIcentres are interlinked byL2−ligands to form a one-dimensional [Cd2L2]nchain. Adjacent chains are further connected by bpmb linkers, giving rise to a two-dimensional network, and these networks are pillared by bpmb to afford a three-dimensional framework with a 33.42.63.71.81topology. Each grid in the framework has large channels which are filled mainly by the two other equivalent frameworks to form a threefold interpenetrating net. The compound exhibits relatively good photocatalytic activity towards the degradation of methylene blue in aqueous solution under UV irradiation.

Disordered Structure of Polymeric Bismuth Tribenzoate, [Bi(C6H5COO)3] n

1998 ◽  
Vol 54 (4) ◽  
pp. 438-442 ◽  
Author(s):  
A. D. Rae ◽  
G. J. Gainsford ◽  
T. Kemmitt
Keyword(s):  
Benzoic Acid ◽  
Ligand Exchange ◽  
Polymeric Chain ◽  
Ordered Structure ◽  
Asymmetric Unit ◽  
Bond Lengths ◽  
Final Value ◽  
Disordered Structure ◽  
Polymeric Chains ◽  
Expected Values

Bismuth tribenzoate, Bi(C6H5COO)3, was prepared by ligand exchange of bismuth triacetate with benzoic acid. A 1:1 disordered structure of P21/m symmetry, a = 7.858 (3), b = 14.442 (2), c = 16.807 (3) Å, β = 92.26 (2)°, V = 1906 (1) Å3, Z = 4, consists of polymeric chains parallel to the a axis and can be related to an ideally ordered structure of B21/a symmetry with a′ = 2a, b′ = b and c′ = 2c. This B-centred structure can itself be described as a modulation of an idealized parent structure of Pnma symmetry. The disorder is rationalized in terms of the pseudo-symmetry that relates the two formula units of Bi(C6H5COO)3 in the asymmetric unit of B21/a. In the polymeric chain each Bi atom is nominally nine-coordinate, with widely varying bond lengths arranged in a very asymmetric manner. The polymeric chain is created by each bismuth being chelated to three benzoate ligands. Each such ligand also has one of its O atoms bridging an adjacent Bi atom so that three bridging O atoms link adjacent bismuths. Apparent valences are consistent with expected values for all Bi and O atoms. A final value of 0.0454 was obtained for R(F) using the 1813 independent reflections (out of 2839) with I(h) > 3σ[I(h)] to refine 185 parameters describing 56 non-H atoms.

scholarly journals Poly[[(μ2-4,4′-bipyridyl-κ2N:N′)bis{μ2-N-[2-(2-hydroxybenzoyl)carbamothioyl]acetamidato-κ4O,N,O′:S}bis(nitrato-κ2O,O′)dicadmium] dimethylformamide tetrasolvate]

2013 ◽  
Vol 69 (12) ◽  
pp. m647-m648
Author(s):  
Ming-Hua You ◽  
Fo-Jun Li ◽  
Xiao-Ping Yang ◽  
Xu-Xiang Lin ◽  
Hua-Yan Ye
Keyword(s):  
Three Dimensional ◽  
Title Complex ◽  
Nitrate Anion ◽  
Inversion Symmetry ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Dimensional Network ◽  
Polymeric Chains ◽  
Solvent Molecules

The asymmetric unit of the title complex, {[Cd2(C10H10N3O3S)2(C10H8N2)(NO3)2]·4C3H7NO}n, consists of one CdIIcation, oneN-[2-(2-hydroxybenzoyl)carbamothioyl]acetamidate ligand, half a 4,4′-bipyridyl ligand, one coordinating nitrate anion and two dimethylformamide solvent molecules of crystallization. The bipyridine ligand is completed by inversion symmetry. The metal cation exhibits a distorted pentagonal–bipyramidal coordination geometry provided by two O and one N atoms of the thiosemicarbazide ligand, two O atoms of the nitrate anion, one S atom of a neighbouring thiosemicarbazide ligand and one 4,4′-bipyridine N atom. The bridging role of the thiosemicarbazide ligand through the S atom leads to centrosymmetric binuclear units, which are further linked by 4,4′-bipyridine units, forming polymeric chains extending along theb-axis direction. An intramolecular N—H...O hydrogen bond occurs. The crystal structure also features N—H...O and O—H...O hydrogen bonds, leading to the formation of a three-dimensional network.

scholarly journals A one-dimensional polymeric cobalt(III)–potassium complex with 18-crown-6, cyanide and porphyrinate ligands

2014 ◽  
Vol 70 (3) ◽  
pp. m104-m105 ◽  
Author(s):  
Yassine Belghith ◽  
Hamza Toumi ◽  
Jean-Claude Daran ◽  
Habib Nasri
Keyword(s):  
Three Dimensional ◽  
Water Molecules ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
Lattice Water ◽  
Porphyrin Ligand ◽  
Polymeric Chains ◽  
Potassium Complex ◽  
Cyanide Ligands

The reaction of CoII(TpivPP) {TpivPP is the dianion of 5,10,15,20-tetrakis[2-(2,2-dimethylpropanamido)phenyl]porphyrin} with an excess of KCN salts and an excess of the 18-crown-6 in chlorobenzene leads to the polymeric title compoundcatena-poly[[dicyanido-2κ2C-(1,4,7,10,13,16-hexaoxacyclooctadecane-1κ6O){μ3-(2α,2β)-5,10,15,20-tetrakis[2-(2,2-dimethylpropanamido)phenyl]porphyrinato-1κO5:2κ4N,N′,N′′,N′′′:1′κO15}cobalt(III)potassium] dihydrate], {[CoK(CN)2(C12H24O6)(C64H64N8O4]·2H2O}n. The CoIIIion lies on an inversion center, and the asymmetric unit contains one half of a [CoIII(2α,2β-TpivPP)(CN)2]−ion complex and one half of a [K(18-C-6]+counter-ion (18-C-6 is 1,4,7,10,13,16-hexaoxacyclooctadecane), where the KIion lies on an inversion center. The CoIIIion is hexacoordinated by two C-bonded axial cyanide ligands and the four pyrrole N atoms of the porphyrin ligand. The KIion is chelated by the six O atoms of the 18-crown-6 molecule and is further coordinated by two O atoms of pivalamido groups of the porphyrin ligands, leading to the formation of polymeric chains running along [011]. In the crystal, the polymeric chains and the lattice water molecules are linked by N—H...O and O—H...N hydrogen bonds, as well as weak C—H...O, O—H...π and C—H...π interactions into a three-dimensional supramolecular architecture.

Diamondoid framework solid with Sn(OCH3)2–tetrapyridylporphyrin linkers, CuInodes and [CuICl2]−counter-ions

2015 ◽  
Vol 71 (8) ◽  
pp. 706-711 ◽  
Author(s):  
Hatem M. Titi ◽  
Israel Goldberg
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
Organic Ligand ◽  
Coordination Geometry ◽  
Tetrahedral Coordination ◽  
Asymmetric Unit ◽  
Counter Ions ◽  
Metal Organic ◽  
Water Crystallization ◽  
Positively Charged

We report on the synthesis of a new metal–organic framework (MOF) composed of Sn(OCH3)2–tetrakis(pyridin-4-yl)porphyrin linkers, Cu+connecting nodes and [CuCl2]−counter-ions, namely poly[[bis(methanolato-κO)[μ5-5,10,15,20-tetrakis(pyridin-4-yl)porphyrin-κ81κN5:1′κN10:1′′κN15:1′′′κN20:2κ4N21,N22,N23,N24]copper(I)tin(II)] dichloridocuprate(I)], [CuSn(C40H24N8)(CH3O)2][CuCl2]. Its crystal structure consists of a single-framework coordination polymer of the organic ligand and the CuIions. The latter are characterized by a tetrahedral coordination geometry [with CN (coordination number) = 4], linking to the pyridyl N-atom sites of four different ligands and imparting to the positively charged polymeric assembly a diamondoid PtS-type topology. Correspondingly, every porphyrin unit is coordinated to four different CuIconnectors. The [CuCl2]−anions occupy the intra-lattice voids, along with disordered molecules of the water crystallization solvent. The asymmetric unit of this structure consists of two halves of the porphyrin scaffold, located on centres of crystallographic inversion, and the Cu+and [CuCl2]−ions. This report provides unique structural evidence for the formation of tetrapyridylporphyrin-based three-dimensional MOFs with a diamondoid architecture that have been observed earlier only on rare occasions.

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