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One-dimensional Coordination Polymer (one-dimensional + coordination_polymer)
Selected AbstractsOne-Dimensional Coordination Polymers of MnII, CuII, and ZnII Supported by Carboxylate-Appended (2-Pyridyl)alkylamine Ligands , Structure and MagnetismEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 22 2009Himanshu Arora Abstract Four new complexes [MnII(L1OO)(H2O)][ClO4]·2H2O (1), [ZnII(L1OO)][ClO4]·2H2O (2), [CuII(L3OO)][CF3SO3]·H2O (3), and [ZnII(L3OO)][ClO4] (4) (L1OO, = 3-[(2-(pyridine-2-yl)ethyl){2-(pyridine-2-yl)methyl}amino]propionate; L3OO, = 3-[(2-(pyridine-2-yl)ethyl){(dimethylamino)ethyl}amino]propionate) have been synthesized and characterized by elemental analysis, IR, and UV/Vis spectroscopy. Structural analysis revealed that 1, 3, and 4 are one-dimensional chain-like coordination polymers. In 1 distorted octahedral MnN3O3 and in 3 square-pyramidal CuN3O2 coordination is satisfied by three nitrogen atoms and an appended carboxylate oxygen atom of the ligand, and an oxygen atom belonging to the carboxylate group of an adjacent molecule. In 4 trigonal bipyramidal ZnN3O2 coordination environment is provided by two nitrogen atoms and an appended carboxylate oxygen atom of the ligand in the equatorial plane, and the two axial positions are satisfied by a tertiary amine nitrogen and an oxygen atom belonging to the carboxylate group of an adjacent molecule. In 1 the MnII center is coordinated by an additional water molecule. In these complexes each monomeric unit is sequentially connected by syn - anti carboxylate bridges. Temperature-dependent magnetic susceptibilities for 1 and 3 are measured, revealing antiferromagnetic interactions through syn - anti carboxylate bridges between the MII centers. Analysis of the crystal packing diagram reveals that in 1 extensive ,,, stacking involving alternate pyridine rings of adjacent 1D chain exists, which eventually lead to the formation of a 2D network structure. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source] Poly[[[aqua(2,2,-bipyridine-,2N,N,)manganese(II)]-,-croconato-,4O,O,:O,,,O,,,] monohydrate]: a one-dimensional coordination polymer connected by hydrophilic,hydrophilic and lipophilic,lipophilic interactions at 135,KACTA CRYSTALLOGRAPHICA SECTION C, Issue 4 2010Hong-Feng Chen In the title one-dimensional coordination polymer, {[Mn(C5O5)(C10H8N2)(H2O)]·H2O}n, each MnII ion is seven-coordinated by four O atoms from two croconate ligands, two N atoms from a 2,2,-bipyridine (2,2,-bipy) ligand and one O atom from an aqua ligand. The croconate ligand bridges the MnII ions in a bis-bidentate chelation mode, forming an extended [Mn(C5O5)]n chain running parallel to the [001] direction, with the lipophilic 2,2,-bipy ligands lying along one side and the hydrophilic water molecules along the opposite side. Coordinated water and solvent water molecules are arranged in the hydrophilic layer, which is characterized by O,H...O hydrogen bonds between croconate ligands. Meanwhile, 2,2,-bipy ligands from adjacent chains partially overlap and exhibit ,,, interactions to form a lipophilic layer. The hydrophilic and lipophilic layers are arranged alternately to build a layer structure. [source] catena -Poly[[bis(acetonitrile-,N)manganese(II)]-bis(,-trifluoromethanesulfonato-,2O:O,)]ACTA CRYSTALLOGRAPHICA SECTION C, Issue 1 2010Martin Lutz The title compound, [Mn(CF3SO3)2(CH3CN)2]n, has an MnII cation on an inversion centre in an octahedral environment. The trifluoromethanesulfonate anions act as bridging ligands and form a one-dimensional coordination polymer in the direction of the a axis. The F atoms of the trifluoromethanesulfonate anions form layers parallel to the ab plane, but despite short intermolecular distances, no stabilizing F...F interactions are detected. The Mn,N and C,C bonds of the acetonitrile ligand are analyzed according to the Hirshfeld rigid-bond test. Renninger effects in the reflection data are considered, explored and discussed. [source] A bis(amine,carboxylate) copper(II) coordination compound forms a two-dimensional metal,organic framework when crystallized from water and methanolACTA CRYSTALLOGRAPHICA SECTION C, Issue 9 2009Orde Q. Munro When {2,2,-[(2-methyl-2-nitropropane-1,3-diyl)diimino]diacetato}copper(II), [Cu(C8H13N3O6)], (I), was crystallized from a binary mixture of methanol and water, a monoclinic two-dimensional water- and methanol-solvated metal,organic framework (MOF) structure, distinctly different from the known orthorhombic one-dimensional coordination polymer of (I), was isolated, namely catena -poly[[copper(II)-,3 -2,2,-[(2-methyl-2-nitropropane-1,3-diyl)diimino]diacetato] methanol 0.45-solvate 0.55-hydrate], {[Cu(C8H13N3O6)]·0.45CH3OH·0.55H2O}n, (II). The monoclinic structure of (II) comprises centrosymmetric dimers stabilized by a dative covalent Cu2O2 core and intramolecular N,H...O hydrogen bonds. Each dimer is linked to four neighbouring dimers via symmetry-related (opposing) pairs of bridging carboxylate O atoms to generate a `diamondoid' net or two-dimensional coordination network. Tight voids of 166,Å3 are located between these two-dimensional MOF sheets and contain a mixture of water and methanol with fractional occupancies of 0.55 and 0.45, respectively. The two-dimensional MOF sheets have nanometre-scale spacings (11.2,Å) in the crystal structure. Hydrogen-bonding between the methanol/water hydroxy groups and a Cu-bound bridging carboxylate O atom apparently negates thermal desolvation of the structure below 358,K in an uncrushed crystal of (II). [source] A novel O,Zn bridging polymer complex of 2,6-bis[bis(carboxylatomethyl)aminomethyl]-4-methylphenolateACTA CRYSTALLOGRAPHICA SECTION C, Issue 1 2008Yuan-Yuan Zhang A new one-dimensional coordination polymer, catena -poly[[acetatohexaaqua{,4 -2,6-bis[bis(carboxylatomethyl)aminomethyl]-4-methylphenolato}trizinc(II)] octahydrate], [Zn3(C17H17N2O9)(C2H3O2)(H2O)6]·8H2O, is a trinuclear complex consisting of three zinc centers joined by a phenolate bridge and Zn(H2O)4 units. In each complex polymer unit, the three Zn atoms have different coordination modes. Of the two phenolate-bridged Zn ions, one adopts a distorted octahedral coordination composed of two carboxylate ligands, one tertiary N atom, two water molecules and the bridging phenolate ligand, while the other adopts a pyramidal geometry composed of two carboxylate ligands, one tertiary N atom from another coordination arm, one acetate anion as the counter-anion and the bridging phenolate ligand. The third type of Zn centre is represented by two independent Zn atoms lying on inversion centres. They both have an octahedral coordination consisting of four O atoms from four water molecules and two acetate carbonyl O atoms from the ligand. The latter Zn atoms join the above-mentioned binuclear complex units through O atoms of the carboxylate groups into an infinite chain. Neighboring aromatic rings are distributed above and below the chain in an alternating manner. Between the coordination chains, the Zn...Zn separations are 5.750,(4) and 6.806,(4),Å. The whole structure is stabilized by hydrogen bonds formed mainly by solvent water molecules. [source] Cationic, neutral and anionic metal(II) complexes derived from 4-oxo-4H -pyran-2,6-dicarboxylic acid (chelidonic acid)ACTA CRYSTALLOGRAPHICA SECTION C, Issue 5 2007Vaduganathan Yasodha The structures of five metal complexes containing the 4-oxo-4H -pyran-2,6-dicarboxylate dianion illustrate the remarkable coordinating versatility of this ligand and the great structural diversity of its complexes. In tetraaquaberyllium 4-oxo-4H -pyran-2,6-dicarboxylate, [Be(H2O)4](C7H2O6), (I), the ions are linked by eight independent O,H...O hydrogen bonds to form a three-dimensional hydrogen-bonded framework structure. Each of the ions in hydrazinium(2+) diaqua(4-oxo-4H -pyran-2,6-dicarboxylato)calcate, (N2H6)[Ca(C7H2O6)2(H2O)2], (II), lies on a twofold rotation axis in the space group P2/c; the anions form hydrogen-bonded sheets which are linked into a three-dimensional framework by the cations. In bis(,-4-oxo-4H -pyran-2,6-dicarboxylato)bis[tetraaquamanganese(II)] tetrahydrate, [Mn2(C7H2O6)2(H2O)8]·4H2O, (III), the metal ions and the organic ligands form a cyclic centrosymmetric Mn2(C7H2O6)2 unit, and these units are linked into a complex three-dimensional framework structure containing 12 independent O,H...O hydrogen bonds. There are two independent CuII ions in tetraaqua(4-oxo-4H -pyran-2,6-dicarboxylato)copper(II), [Cu(C7H2O6)(H2O)4], (IV), and both lie on centres of inversion in the space group P; the metal ions and the organic ligands form a one-dimensional coordination polymer, and the polymer chains are linked into a three-dimensional framework containing eight independent O,H...O hydrogen bonds. Diaqua(4-oxo-4H -pyran-2,6-dicarboxylato)cadmium monohydrate, [Cd(C7H2O6)(H2O)2]·H2O, (V), forms a three-dimensional coordination polymer in which the organic ligand is coordinated to four different Cd sites, and this polymer is interwoven with a complex three-dimensional framework built from O,H...O hydrogen bonds. [source] Crystallographic report: Tricarbonyl(,5 -cyclopentadienyl)(dichloroindium) molybdenumAPPLIED ORGANOMETALLIC CHEMISTRY, Issue 7 2004T. Grabowy Abstract In the solid state, [{Cp(CO)3Mo}InCl2], forms a one-dimensional coordination polymer in which the indium atoms are coordinated by four chlorine atoms (InCl: 2.448(2),3.004(2) Å) and a {Cp(CO)3Mo} group (InMo: 2.750(1) Å) in a distorted trigonal bipyramidal environment. Copyright © 2004 John Wiley & Sons, Ltd. [source] catena -Poly[bis[(2,2-bipyridine-,2N,N,)copper(II)]-,4 -1,2,4,5-benzenetetracarboxylato-,4O1:O2:O3:O4]ACTA CRYSTALLOGRAPHICA SECTION C, Issue 2 2004Hong-Ping Xiao In the title complex, [Cu2(C10H2O8)(C10H8N2)2]n, the CuII cation has a four-coordinated environment, completed by two carboxyl O atoms belonging to two 1,2,4,5-benzenetetracarboxylate anions (TCB4,) and two N atoms from one 2,2,-bipyridine (2,2,-bipy) ligand, forming a distorted square-planar geometry. The [Cu(2,2,-bipy)]2+ moieties are bridged by TCB4, anions, which lie about inversion centres, forming an infinite one-dimensional coordination polymer with a double-chain structure along the a axis. A two-dimensional network structure is formed via a face-to-face ,,, interaction between the 2,2,-bipy rings belonging to two adjacent double chains, at a distance of approximately 3.56,Å. [source] AgI and CuI binuclear macrocyclic complexes with 1-(3-pyridyl)ethanone oximeACTA CRYSTALLOGRAPHICA SECTION C, Issue 1 2004Ingrid Socorro Bis[,-1-(3-pyridyl)ethanone oxime-,2N:N,]bis[nitratosilver(I)], [Ag2(NO3)2(C7H8N2O)2], crystallizes as a centrosymmetric binuclear macrocylic complex containing silver(I) ions bridged by the organic 1-(3-pyridyl)ethanone oxime ligand. The ligand coordinates via the pyridine and the oxime N atoms. A similar metal,ligand arrangement was found in the copper(I) complex catena -poly[[bis[,-1-(3-pyridyl)ethanone oxime-,2N:N,]dicopper(I)]-di-,-iodo], [Cu2I2(C7H8N2O)2]n, but here the centrosymmetric macrocycles are connected by double anion bridges, resulting in the formation of a one-dimensional coordination polymer. [source] Facile Synthesis of Nitrogen Tetradentate Ligands and Their Applications in CuI -Catalyzed N-Arylation and Azide,Alkyne CycloadditionCHEMISTRY - A EUROPEAN JOURNAL, Issue 40 2009Fuwei Li Dr. Abstract Five new tetradentate ligands [NNNN] with benzimidazolyl-imine or amine nitrogen donors have been synthesized in good yields under mild conditions from easily available substrates. trans - N,N,-bis(1-Ethyl-2-benzimidazolylmethylene)cyclohexane-1,2-diimine is the best accelerating ligand in this series that supports the CuI -catalyzed Ullmann N-arylation and the direct three-component azide,alkyne cycloaddition reaction to give the corresponding substituted imidazole, pyrazole, and triazole in high yields. Single-crystal X-ray diffraction analysis of its complex with CuI reveals a novel one-dimensional coordination polymer of the metal chain bridged alternately by the [NNNN] ligand and diiodides. [source] Copper(II) chloride and bromide complexes with 2-methyl-2H -tetrazol-5-amine: an X-ray powder diffraction studyACTA CRYSTALLOGRAPHICA SECTION C, Issue 4 2010Ludmila S. Ivashkevich The complex catena -poly[[dibromidocopper(II)]-bis(,-2-methyl-2H -tetrazol-5-amine)-,2N4:N5;,2N5:N4], [CuBr2(C2H5N5)2]n, (I), and the isotypic chloride complex catena -poly[[dichloridocopper(II)]-bis(,-2-methyl-2H -tetrazol-5-amine)-,2N4:N5;,2N5:N4], [CuCl2(C2H5N5)2]n, (II), were investigated by X-ray powder diffraction at room temperature. The crystal structure of (I) was solved by direct methods, while the Rietveld refinement of (II) started from the atomic coordinates of (I). In both structures, the Cu atoms lie on inversion centres, adopting a distorted octahedral coordination of two halogen atoms, two tetrazole N atoms and two 5-amine group N atoms. Rather long Cu,Namine bonds allow consideration of the amine group as semi-coordinated. The compounds are one-dimensional coordination polymers, formed as a result of 2-methyl-2H -tetrazol-5-amine ligands bridging via a tetrazole N atom and the amine N atom. In the polymeric chains, adjacent Cu atoms are connected by two such bridges. [source] The anionic coordination polymer {K2[PtII2AgI8(2,2,-bipyridine)2(O2CCF3)14]}nACTA CRYSTALLOGRAPHICA SECTION C, Issue 8 2009Zachary M. Hudson The trimetallic compound catena -poly[dipotassium(I) [bis(2,2,-bipyridine)di-,3 -trifluoroacetato-dodeca-,2 -trifluoroacetato-diplatinum(II)octasilver(I)]], K2[Pt2Ag8(C2F3O2)14(C10H8N2)2], forms an extended structure in the solid state. Electrostatic interactions involving the K+ ions play a key role in the formation of the extended structure in three dimensions. The AgI ions form one-dimensional coordination polymers, with alternating Ag2 and Ag6 units linked by CF3CO2, ligands. Pt...Pt interactions perpendicular to the one-dimensional polymerization axis provide another element of long-range order, and electrostatic interactions with K+ ions provide connectivity between adjacent polymeric structures. [source] Two transition metal coordination polymers of the 7,7,8,8-tetracyanoquinodimethane dianion (TCNQ2,)ACTA CRYSTALLOGRAPHICA SECTION C, Issue 1 2009Guangbin Wang Each of the two novel title transition metal coordination polymers, namely catena -poly[[bis{[tris(2-pyridylmethyl)amine]cobalt(II)}-,4 -7,7,8,8-tetracyanoquinodimethanide(2,)] bis[7,7,8,8-tetracyanoquinodimethanide(1,)] methanol disolvate], {[Co2(C12H4N4)(C18H18N4)2](C12H4N4)2·2CH3OH}n, (I), and catena -poly[[[[tris(2-pyridylmethyl)amine]iron(II)]-,2 -7,7,8,8-tetracyanoquinodimethanide(2,)] methanol solvate], {[Fe(C12H4N4)(C18H18N4)]·CH3OH}n, (II), contains ,4 -TPA and cis -bridging TCNQ2, ligands [TPA is tris(2-pyridylmethyl)amine and TCNQ is 7,7,8,8-tetracyanoquinodimethane], but the two compounds adopt entirely different structural motifs. Compound (I) consists of a ribbon coordination polymer featuring ,4 -TCNQ2, radical anion ligands bridging four different octahedral CoII centers. Each formula unit of the polymer is flanked by two uncoordinated TCNQ, anions and two methanol solvent molecules. All three TCNQ anions have crystallographic inversion symmetry. In (II), the 21 symmetry operator generates a one-dimensional zigzag chain of octahedral FeII centers with ,2 -TCNQ2, bridges. A methanol solvent molecule forms hydrogen bonds to one of the terminal N atoms of the bridging TCNQ2, dianion. To the best of our knowledge, these are the first examples of one-dimensional coordination polymers forming from cis coordination of two TCNQ ligands to octahedral metal centers. [source] | ||||||||||