Synthesis, Structure, and Clathration Ability of the Microporous Three-Dimensional Coordination Polymer∞3[{CuCN(4,4′-bpy)} · 2(4,4′-bpy)]

Teichert, O.; Sheldrick, William S.

doi:10.1002/1521-3749(200007)626:7<1509::aid-zaac1509>3.0.co;2-k

Cited by 54 publications

(14 citation statements)

References 6 publications

(10 reference statements)

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“…The crystal structures of these coordination polymers are based on inorganic CuX substructures (X = halide or pseudo halide) which are linked by the organic ligands to multidimensional coordination polymers. Dependent on the copper(I) halide or pseudo-halide and the nature of the organic ligand, different CuX substructures such as dimers, tetramers, and single, double, or helical single chains are observed. − The dimensionality of the coordination network can be influenced predominantly by the coordination properties of the organic ligands. For one definite copper(I) halide or pseudo-halide and one specific ligand, frequently several compounds are found, which differ in the ratio between the inorganic and organic parts.…”

Section: Introductionmentioning

confidence: 99%

Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ₂-2-Iodopyrazine-N,N‘)]

2003

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Two modifications of the new copper(I) iodide coordination polymer CuI(2-iodopyrazine) were obtained by the reaction of CuI and 2-iodopyrazine in acetonitrile. During this reaction, intensely yellow crystals of form I appear first which transform within several minutes to intensely red crystals of form II which is the thermodynamically most stable form at room temperature. In catena[CuI(2-iodopyrazine-N)] (form I; a = 4.1830 (6) A; b = 10.814 (1) A; c = 17.961 (4) A; V = 812.5 (2) A(3); orthorhombic; P2(1)2(1)2(1); Z = 4), corrugated CuI double chains are found in which each copper atom is coordinated by one additional 2-iodopyrazine ligand. In poly[CuI(mu-2-iodopyrazine-N,N')] (form II; a = 4.2679 (5) A; b = 13.942 (2) A; c = 13.017 (2) A; b = 92.64 (1) degrees; V = 773.76 (2) A(3); monoclinic; P2(1)/c; Z = 4), CuI single chains occur which are connected via mu-N,N' coordination by the 2-iodopyrazine ligands to layers parallel to (010). The thermal behavior of both forms was investigated using simultaneous differential thermoanalysis, thermogravimetry, and mass spectrometry as well as differential scanning calorimetry and temperature resolved X-ray powder diffraction. On heating, both forms decompose to copper(I) iodide, and the decomposition temperature of form I is significantly lower than that of form II. From all experiments, there is no indication of a phase transition of one form into the other or for the formation of a phase with lower amine content.

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Section: Introductionmentioning

confidence: 99%

Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ₂-2-Iodopyrazine-N,N‘)]

2003

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“…Recently, we have found polymorphic modifications in coordination polymers based on copper(I) halides or pseudohalides and multidendate N-donor ligands . The structures of such coordination polymers are built up of different CuX substructures (X = halide or pseudohalide) which are linked by the organic ligands to multidimensional coordination polymers. − For one definite copper(I) halide or pseudohalide and one specific N-donor ligand often several compounds can be prepared, which contain a different CuX:ligand ratio like, e.g., 1:2, 1:1, 3:2, 2:1, or 4.1. We have found that most of the ligand-rich compounds can be transformed into ligand-poorer compounds by thermal decomposition, which is an alternative route for the preparation of new CuX coordination polymers. − …”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structures, and Thermal and Thermodynamic Properties of Dimorphic Copper(I) Coordination Polymers

Näther

Jeß

2003

Inorg. Chem.

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A second modification of the literature-known copper(I) coordination polymer CuCl(pyridazine) was prepared by the reaction of CuCl with pyridazine in acetonitrile. The crystal structure of catena[CuCl(mu(2)-pyridazine-N,N)] is built up of CuCl chains of which each two are connected by the pyridazine ligands to form double chains that are directed parallel to the crystallographic a-axis. In the literature known form LI (CuCl)(2) dimers occur that are connected to chains by the pyridazine ligand. On heating, compound I and LI lose half of the pyridazine ligands and transform to the new 2:1 coordination polymer poly[(CuCl)(2)(pyridazine-N,N)] (II), which transforms at higher temperatures to CuCl. The crystal structure of II is composed of discrete CuCl tetra-chains that are linked by the pyridazine ligands to sheets parallel to (010). The same thermal reactivity is found for the literature-known compound CuBr(pyridazine) (LII), which is isotypic to LI. On heating LII a transformation into the new 2:1 compound poly[(CuBr)(2)(pyridazine-N,N)] (III) is observed, which is isotypic to II. The thermal reactivity of all compounds and the transformation behavior as well as the range of thermodynamic stability of the dimorphic modifications were studied using DTA-TG-MS and DSC measurements, temperature dependent X-ray powder investigations, and crystallization experiments.

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“…A search of the Cambridge Structural Database (Version 5.18, November 2007 update;Allen, 2002) revealed only 13 crystal structures of metallocyanide complexes involving 4,4 0 -bpy, and only five of these concerned first-row transition metals. A few three-dimensional coordination polymers based on 4,4 0 -bpy and cyanide compounds have been reported (Soma et al, 1994;Teichert & Sheldrick, 2000), but none involved tetracyanonickelate(II). We describe here the synthesis and structure of a new metal-organic cyanide-bridged framework, (I), formed from 4,4 0 -bipyridine, copper sulfate and tetracyanonickelate.…”

Section: Figurementioning

confidence: 99%

Poly[diaqua(μ-4,4′-bipyridine-κ²N:N′)bis(μ-cyanido-κ²C:N)bis(cyanido-κC)nickel(II)copper(II)]: a metal–organic cyanide-bridged framework

Sereda

Stœckli-Evans

2008

Acta Crystallogr C

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The structure of the title compound, [NiCu(CN)4(C10H8N2)(H2O)2]n or [{Cu(H2O)2}(mu-C10H8N2)(mu-CN)2{Ni(CN)2}]n, was shown to be a metal-organic cyanide-bridged framework, composed essentially of -Cu-4,4'-bpy-Cu-4,4'-bpy-Cu- chains (4,4'-bpy is 4,4'-bipyridine) linked by [Ni(CN)4](2-) anions. Both metal atoms sit on special positions; the Cu(II) atom occupies an inversion center, while the Ni(II) atom of the cyanometallate sits on a twofold axis. The 4,4'-bpy ligand is also situated about a center of symmetry, located at the center of the bridging C-C bond. The scientific impact of this structure lies in the unique manner in which the framework is built up. The arrangement of the -Cu-4,4'-bpy-Cu-4,4'-bpy-Cu- chains, which are mutually perpendicular and non-intersecting, creates large channels running parallel to the c axis. Within these channels, the [Ni(CN)4](2-) anions coordinate to successive Cu(II) atoms, forming zigzag -Cu-N[triple-bond]C-Ni-C[triple-bond]N-Cu- chains. In this manner, a three-dimensional framework structure is constructed. To the authors' knowledge, this arrangement has not been observed in any of the many copper(II)-4,4'-bipyridine framework complexes synthesized to date. The coordination environment of the Cu(II) atom is completed by two water molecules. The framework is further strengthened by O-H...N hydrogen bonds involving the water molecules and the symmetry-equivalent nonbridging cyanide N atoms.

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Synthesis, Structure, and Clathration Ability of the Microporous Three-Dimensional Coordination Polymer∞3[{CuCN(4,4′-bpy)} · 2(4,4′-bpy)]

Abstract: The respectively yellow and red coordination polymers 2

Cited by 54 publications

References 6 publications

Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ₂-2-Iodopyrazine-N,N‘)]

Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ₂-2-Iodopyrazine-N,N‘)]

Synthesis, Crystal Structures, and Thermal and Thermodynamic Properties of Dimorphic Copper(I) Coordination Polymers

Poly[diaqua(μ-4,4′-bipyridine-κ²N:N′)bis(μ-cyanido-κ²C:N)bis(cyanido-κC)nickel(II)copper(II)]: a metal–organic cyanide-bridged framework

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Synthesis, Structure, and Clathration Ability of the Microporous Three-Dimensional Coordination Polymer∞3[{CuCN(4,4′-bpy)} · 2(4,4′-bpy)]

Abstract: The respectively yellow and red coordination polymers 2

Cited by 54 publications

References 6 publications

Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ2-2-Iodopyrazine-N,N‘)]

Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ2-2-Iodopyrazine-N,N‘)]

Synthesis, Crystal Structures, and Thermal and Thermodynamic Properties of Dimorphic Copper(I) Coordination Polymers

Poly[diaqua(μ-4,4′-bipyridine-κ2N:N′)bis(μ-cyanido-κ2C:N)bis(cyanido-κC)nickel(II)copper(II)]: a metal–organic cyanide-bridged framework

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Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ₂-2-Iodopyrazine-N,N‘)]

Dimorphism of a New CuI Coordination Polymer:Synthesis, Crystal Structures and Properties of Catena[CuI(2-Iodopyrazine-N)] and Poly[CuI(μ₂-2-Iodopyrazine-N,N‘)]

Poly[diaqua(μ-4,4′-bipyridine-κ²N:N′)bis(μ-cyanido-κ²C:N)bis(cyanido-κC)nickel(II)copper(II)]: a metal–organic cyanide-bridged framework