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Zigzag Chain Structure (zigzag + chain_structure)
Selected AbstractsSyntheses and Characterization of Lead(II) N,N -Bis[1(2)H -tetrazol-5-yl]amine Compounds and Effects on Thermal Decomposition of Ammonium PerchlorateEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 23 2009Weitao Wang Abstract Three new lead(II) N,N -bis[1(2)H -tetrazol-5-yl]amine (H2bta) compounds, [Pb(bta)(H2O)2]n (1), [Pb2(bta)2(bpy)2] (2), and [Pb2(bta)2(phen)2]·2H2O (3), were synthesized. Single-crystal X-ray diffraction reveals that compound 1 has a 1D polymeric zigzag chain structure, whereas compounds 2 and 3 have binuclear structures. In addition, compounds 1,3 were explored as additives to promote the thermal decomposition of ammonium perchlorate by differential scanning calorimetry. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source] catena -Poly[bis(trimethylphenylammonium) [hexa-,-chlorido-dichloridotricuprate(II)]]: an alternating zigzag chain of CuCl4 and Cu2Cl6 complexesACTA CRYSTALLOGRAPHICA SECTION C, Issue 2 2010Marcus R. Bond The title compound, {(C9H14N)2[Cu3Cl8]}n, consists of parallel chains of alternating quasiplanar Cu2Cl6 and planar CuCl4 complexes separated by trimethylphenylammonium cations. Both inorganic complexes possess inversion symmetry. Pairs of neighboring chloride ions of the CuCl4 complex each form a symmetric bridge and an asymmetric bridge to Cu2Cl6 complexes on either side. The Cu2Cl6 complex contains two symmetric chloride bridges between the copper cations with a terminal chloride bound to each five-coordinated CuII ion. The CuCl4 complex completes its coordination environment by forming two long semicoordinate contacts to the bridging chloride ions of neighboring Cu2Cl6 complexes. The use of the bridging rather than the terminal chloride ions to form semicoordinate contacts generates a new zigzag chain structure that differs from the straight chain structures found for other A2Cu3Cl8 compounds. The zigzag chain structure is adopted so as to conform to the shorter repeat distance dictated by stacking of the organic cations. [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] Hydrogen-bonded supramolecule of N,N,-bis(4-pyridylmethyl)oxalamide and a zigzag chain structure of catena -poly[[[dichloridocobalt(II)]-,- N,N,-bis(4-pyridylmethyl)oxalamide-,2N4:N4,] hemihydrate]ACTA CRYSTALLOGRAPHICA SECTION C, Issue 5 2007Gene-Hsiang Lee N,N,-Bis(4-pyridylmethyl)oxalamide, C14H14N4O2, exists as a dimer which is extended into a two-dimensional network with other dimers through pyridine,amide hydrogen bonds. The crystal structure of the title coordination polymer, {[CoCl2(C14H14N4O2)]·0.5H2O}n, features a one-dimensional zigzag chain, in which the cobalt ion sits at a twofold symmetry position and adopts a tetrahedral geometry, and the bridging ligand lies on an inversion center and connects to CoII ions in a bis-monodentate mode. Furthermore, two interwoven chains create a cavity of ca 8.6 × 8.6,Å, which produces a three-dimensional channel. Water molecules are held in the channel by hydrogen bonds. [source] Synthesis, structure and photoluminescence of two zinc carboxylate polymers with different coordination architecturesCHINESE JOURNAL OF CHEMISTRY, Issue 10 2003Hong Ding Abstract The hydrothermal reaction of ZnO with benzene-1,4-dicarboxylic add gave Zn·BDC·2H2O (1) and Zn-BDC·H2O (2) (BDC = benzene-1, 4-dicarboxylate), respectively. Polymer 1 (C4H4O3ZH0.5) shows a one-dimensional zigzag chain structure built up from the alternate connection of tetrahedral ZnO4 and BDC units. Polymer 2 (C4H3O2.5Zn0.5) possesses a three-dimensional framework containing infinite zigzag Zn·Zn·Zn pseudochains generated by five-coordinate zinc centers and a rectangular channel system including three groups of different straight channels along the [001], [010] and [60,1] directions. The two metal-organic polymeric compounds exhibit strong photoluminescent emission bands at 402 nm (,ex = 260 nm) (for 1) and at 344 nm and 385 nm (,ex = 279 nm) (for 2) in the solid state at room temperature. [source] Great Framework Variation of Polymers in the Manganese(II) Maleate/,,,,-Diimine System: Syntheses, Structures, and Magneto-Structural CorrelationEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 15 2003Chengbing Ma Abstract Three novel manganese(II) coordination polymers, [Mn (maleate)(phen)]n (1; phen = 1,10-phenanthroline), [Mn(maleate)(phen)]n·nH2O (2), and [Mn(maleate)(bpy)]n (3; bpy = 2,2,-bipyridine), have been synthesized by treatment of Mn2+ with maleic acid with participation of chelate diimine ligands, and have been identified by single-crystal X-ray diffraction to have either one-dimensional (1D) zigzag chain structures (1 and 2) or a two-dimensional (2D) sinuous layer structure (3). Each maleate dianion coordinates to three Mn centers, in different bridging modes (syn - anti in 1 and 2, syn - syn and anti - anti in 3). These compounds represent an interesting example of structural topology variation from 1D to 2D mediated by chemically similar auxiliary chelate ligands. Variable-temperature magnetic susceptibility measurements show weak anti-ferromagnetic exchange interactions between the adjacent MnII ions, with J = ,0.06 cm,1 (2) and J = ,1.3 cm,1, zJ, = ,0.27 cm,1 (3). The differences in the magnitudes of these coupling interactions agree well with the nature of the carboxylate-bridging coordination of maleate. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003) [source] | ||||||||||