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Three-dimensional Coordination Polymer (three-dimensional + coordination_polymer)
Selected AbstractsSingle-Crystal-to-Single-Crystal Transformations of Two Three-Dimensional Coordination Polymers through Regioselective [2+2] Photodimerization Reactions,ANGEWANDTE CHEMIE, Issue 28 2010Dong Liu Im Kristall: Einkristall-zu-Einkristall-Umwandlungen von zwei 3D-Koordinationspolymeren, {[Zn4(,3 -OH)2(5-sipa)2(1,4-bpeb)2],4,H2O}n (siehe Bild; C,hellblau, N,dunkelblau, H,grün) und dem Cadmium-Analogon, durch photochemische [2+2]-Cycloadditionen ergaben die entsprechenden verknüpften 3D-Koordinationspolymere. [source] One-, Two-, and Three-Dimensional Coordination Polymers Built from Large Mo36 -Polyoxometalate Anionic Units and Lanthanide Cations.CHEMINFORM, Issue 14 2006Natalia V. Izarova Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Poly[[aqua(4,4,-diazenediyldibenzoato-,4O,O,:O,,,O,,,)cadmium(II)]: a twofold interpenetrated three-dimensional coordination polymer of PtS topologyACTA CRYSTALLOGRAPHICA SECTION C, Issue 10 2009Ru-Guo Wang In the title coordination compound, [Cd(C14H8N2O4)(H2O)]n, the CdII cation and the coordinated water molecule lie on a twofold axis, whereas the ligand lies on an inversion center. The CdII center is five-coordinated in a distorted square-pyramidal geometry by four carboxylate O atoms from four different 4,4,-diazenediyldibenzoate (ddb) anions and one water O atom. The three-dimensional frameworks thus formed by the bridging ddb anions interpenetrate to generate a three-dimensional PtS-type network. Additionally, the coordination water molecule and the carboxylate O atom form a hydrogen-bonding interaction, stabilizing the three-dimensional framework structure. [source] catena -Poly[[[aqua[3-(2-pyridylsulfanyl)propionato N -oxide-,O1]copper(II)]-,-[3-(2-pyridylsulfanyl)propionato N -oxide-,3O3:O1,O1,] dihydrate]ACTA CRYSTALLOGRAPHICA SECTION C, Issue 1 2008Murugan Indrani In the title complex, {[Cu(C8H8NO3S)2(H2O)]·2H2O}n, the CuII cation has a distorted square-pyramidal coordination environment consisting of five O atoms, one from a water molecule, one from an N,O group and the other three from the carboxylate groups of two 3-(2-pyridylsulfanyl)propionate N -oxide anions. The aqua[3-(2-pyridylsulfanyl)propionato N -oxide]copper(II) moieties are bridged by 3-(2-pyridylsulfanyl)propionate N -oxide anions to form an infinite three-dimensional coordination polymer with a zigzag chain structure. The crystal structure is stabilized by hydrogen bonds. [source] A novel three-dimensional coordination polymer: poly[di-,3 -acetato-di-,2 -acetato-di-,3 -hydroxido-octa-,3 -triazolato-heptamanganese(II)]ACTA CRYSTALLOGRAPHICA SECTION C, Issue 1 2008Zhe-Hui Weng The title compound, [Mn7(C2H2N3)8(C2H3O2)4(OH)2]n, is composed of centrosymmetric heptanuclear building units with the central Mn atom on an inversion center. In the building block, three MnII ions are held together by one ,3 -hydroxide group, two ,2 -triazolate (trz) ligands and two ,2 -acetate groups, forming an Mn3 cluster. Two Mn3 clusters are bridged by an Mn atom via two ,2 -trz ligands and two ,2 -O atoms from two acetate ions to construct a heptanuclear building block. The heptanuclear building units, lying parallel to each other along the b direction, form one-dimensional ladder-like chains and are further interlinked, resulting in a three-dimensional framework through Mn,Ntrz bonds. [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] Tunable Bistability in a Three-Dimensional Spin-Crossover Sensory- and Memory-Functional Material,ADVANCED MATERIALS, Issue 24 2005A. Galet Spin-crossover (SCO) complexes based on three-dimensional coordination polymers (see Figure) exhibit unprecedented pressure-tunable thermal and piezochromic bistability at room temperature. The thermal- and piezohysteresis loops of the material can be tuned, providing a step towards reliable pressure-based memory systems or displays. [source] | ||||||||||