scholarly journals Poly[(μ4-benzene-1,3,5-tricarboxylato)bis(N,N-dimethylacetamide)terbium(III)]

2012 ◽  
Vol 68 (4) ◽  
pp. m415-m415 ◽  
Author(s):  
Kun Liu
Keyword(s):  
Rare Earth ◽  
Title Compound ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
Framework Structure ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Organic Framework

The title compound, [Tb(C9H3O6)(C4H9NO)2], shows a rare-earth three-dimensional metal-organic framework structure. In this complex of an eight-coordinated Tb3+ion, the asymmetric unit contains one benzene-1,3,5-tricarboxylic ligand and two coordinated dimethylacetamide molecules. Each Tb3+ion is coordinated by six O atoms from four carboxylate groups of the benzene-1,3,5-tricarboxylic ligands and two O atoms from two terminal dimethylacetamide molecules.

A New Three‐dimensional Metal‐organic Framework based on Dinuclear Rare Earth Cluster and Olsalazine

2019 ◽  
Vol 645 (21) ◽  
pp. 1267-1270 ◽  
Author(s):  
Xin Zhang ◽  
Fangyuan Zhong ◽  
Jun Liu ◽  
Hui Xu ◽  
Junkuo Gao ◽  
...  
Keyword(s):  
Rare Earth ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Metal Organic ◽  
Organic Framework

Structure andMagnetic Properties of a Three-dimensional Metal-organic Framework: [Co(L)(H2O)2]·H2O

2011 ◽  
Vol 66 (4) ◽  
pp. 355-358
Author(s):  
Man-Sheng Chen ◽  
Yi-Fang Deng ◽  
Zhi-Min Chen ◽  
Chun-Hua Zhang ◽  
Dai-Zhi Kuang
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
Solvothermal Reaction ◽  
Monoclinic Space Group ◽  
Cell Parameters ◽  
Carboxylate Groups ◽  
Dimensional Network ◽  
Metal Organic ◽  
Acid Compound ◽  
Organic Framework

A unique 3D fourfold interpenetrated metal-organic framework, [Co(L)(H2O)2]・H2O (1), has been synthesized by the solvothermal reaction of H2L with Co(NO3)2・6H2O (H2L = 5-(isonicotinamido) isophthalic acid). Compound 1 crystallizes in the monoclinic space group P21/c, with the cell parameters: a = 81301(8), b = 107711(11), c = 167697(16) Å , β = 92.656(2) °, V = 14669(3) Å3, R1 = 0.0325 and wR2 = 0.0833. Its framework has (10,3)-b topology, where the cobalt atoms are alternately bridged by the pyridyl and the carboxylate groups of the L2− ligands into a three-dimensional network. Compound 1 displays antiferromagnetic interactions. Above 40 K, χm −1 obeys the Curie- Weiss law with C = 3.28 emu Kmol−1 andΘ = −0.66 K.

A twofold interpenetrating three-dimensional heterometallic metal–organic framework with pcu topology based on 2-methylbiphenyl-4,4′-dicarboxylic acid

2017 ◽  
Vol 73 (6) ◽  
pp. 470-475 ◽  
Author(s):  
Pei-Ying Guo ◽  
De-Yun Ma ◽  
Hai-Fu Guo
Keyword(s):  
Dicarboxylic Acid ◽  
Title Compound ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Tetrahedral Geometry ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Dianionic Ligands ◽  
Bright Blue Fluorescence ◽  
Bright Blue

The 2-methylbiphenyl-4,4′-dicarboxylate (mbpdc2−) ligand has versatile coordination modes and can be used to construct multinuclear structures. Despite this, reports of the synthesis of coordination complexes involving this ligand are scarce. The title compound, poly[[triaquadi-μ3-hydroxido-hexakis(μ4-2-methylbiphenyl-4,4′-dicarboxylato)calcium(II)hexazinc(II)] monohydrate], {[CaZn6(C15H10O4)6(OH)2(H2O)3]·H2O} n , has been prepared by the hydrothermal assembly of Zn(NO3)2·6H2O, CaCl2 and 2-methylbiphenyl-4,4′-dicarboxylic acid. Two ZnII atoms adopt a four-coordinated distorted tetrahedral geometry by bonding to three O atoms from three different 2-methylbiphenyl-4,4′-dicarboxylate (mbpdc2−) dianionic ligands and one bridging hydroxide O atom. For the remaining ZnII atom, a five-coordinate environment is completed half the time by one carboxylate O atom, and then the same carboxylate O atom and an aqua O atom are present the other half of the time, giving a six-coordinate environment. The CaII atom is coordinated by six O atoms to give an octahedral coordination geometry. The supramolecular secondary building unit (SBU) is a hamburger-like heptanuclear unit (Zn6CaO30) and these units are interconnected through mbpdc2− carboxylate groups to generate a three-dimensional framework with the pcu topology. The single net leaves voids that are filled by mutual interpenetration of an independent equivalent framework in a twofold interpenetrating architecture. The title compound shows thermal stability up to 673 K. The excitation and luminescence data showed the emission of a bright-blue fluorescence.

A fivefold interpenetrating diamondoid three-dimensional metal–organic framework constructed from benzene-1,4-diacetic acid and flexible triazole derivatives: poly[[(μ2-benzene-1,4-diacetato-κ2O:O){μ2-1,4-bis[(1H-1,2,4-triazol-1-yl)methyl]benzene-κ2N4:N4′}zinc(II)] monohydrate]

2013 ◽  
Vol 70 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Hong Shen
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
Polymeric Compound ◽  
X Ray ◽  
Twofold Axis ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Methyl Benzene ◽  
Organic Framework

In the title mixed-ligand metal–organic polymeric compound, {[Zn(C10H8O4)(C12H14N6)]·H2O}n, the asymmetric unit contains a divalent ZnIIcation lying on a twofold axis, one half of a fully deprotonated benzene-1,4-diacetate (PBEA) ligand, one half of a 1,4-bis[(1H-1,2,4-triazol-1-yl)methyl]benzene (BTX) ligand and a water molecule, also lying on a twofold axis. Each ZnIIcentre is surrounded by two O-donor atoms from monodentate carboxylate groups belonging to two different PBEA2−ligands and by two triazole N-donor atoms from two different BTX ligands. Single-crystal X-ray diffraction analysis revealed that the compound has a fivefold interpenetrating diamondoid three-dimensional metal–organic framework.

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.

A fivefold interpenetrating diamond-like three-dimensional metal–organic framework: poly[(μ2-benzene-1,4-diacetato)[μ2-1,6-bis(1,2,4-triazol-1-yl)hexane]zinc(II)]

2012 ◽  
Vol 68 (11) ◽  
pp. m309-m311 ◽  
Author(s):  
Jun Wang ◽  
Xiao-Juan Xu ◽  
Jian-Qing Tao ◽  
Chun-Yun Tan
Keyword(s):  
Rotation Axis ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Mixed Ligand ◽  
Diacetic Acid ◽  
Asymmetric Unit ◽  
Polymeric Compound ◽  
Coordination Environment ◽  
Metal Organic ◽  
Organic Framework

In the mixed-ligand metal–organic title polymeric compound, [Zn(C10H8O4)(C10H16N6)]nor [Zn(PBEA)(BTH)]n[H2PBEA is benzene-1,4-diacetic acid and BTH is 1,6-bis(1,2,4-triazol-1-yl)hexane], the asymmetric unit contains a ZnIIatom, one half of a BTH ligand and one half of a doubly deprotonated H2PBEA ligand. Each ZnIIcentre lies on a crystallographic twofold rotation axis and is four-coordinated by two O atoms from two distinct PBEA2−ligands and two N atoms from two different BTH ligands in a {ZnO2N2} coordination environment. The three-dimensional topology of the title compound corresponds to that of a fivefold interpenetrating diamond-like metal–organic framework.

A novel LaIII-based metal–organic framework (MOF) with a new topology: poly[diaquabis(μ5-2,5-dioxopiperazine-1,4-diacetato)(μ2-oxalato)dilanthanum(III)]

2012 ◽  
Vol 69 (1) ◽  
pp. 5-7 ◽  
Author(s):  
Wen-Xian Chen ◽  
Qiu-Ping Liu ◽  
Gui-Lin Zhuang ◽  
Sheng-Jun Zhou
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Organic Framework

In the title metal–organic framework (MOF), [La(C8H8N2O6)(C2O4)0.5(H2O)]n, the LaIIIcation is coordinated by eight O atoms in a square antiprismatic configuration. Each LaIIIcation is connected to adjacent LaIIIcations by bridging 2,5-dioxopiperazine-1,4-diacetate (PODC2−) and oxalate (lying about an inversion centre) ligands, generating two-dimensional grid layers. The layers are further linkedviathe carboxylate groups of the PODC2−ligands insyn–synandsyn–antimodes, resulting in a three-dimensional framework with a short Schläfli vertex notation of {47.63}{47.67.8}.

Synthesis, structure and properties of a new three-dimensional interpenetrated metal–organic framework with 3,3′-azodibenzoic acid (H2azdc) and 1,4-bis(1H-imidazol-1-yl)butane (bimb): {[Cd(azdc)(bimb)2]·H2O}n

2015 ◽  
Vol 71 (6) ◽  
pp. 485-490
Author(s):  
Ya-Qiang Zhong ◽  
Si-Chun Chen ◽  
Lei Zhang ◽  
Chu-Yue Jing ◽  
Kou-Lin Zhang
Keyword(s):  
Metal Organic Framework ◽  
Mixed Solvents ◽  
Three Dimensional ◽  
Structure And Properties ◽  
Coordination Environment ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Solution Reaction ◽  
Typical Solution ◽  
Organic Framework

A new three-dimensional interpenetrated CdII–organic framework based on 3,3′-azodibenzoic acid [3,3′-(diazenediyl)dibenzoic acid, H2azdc] and the auxiliary flexible ligand 1,4-bis(1H-imidazol-1-yl)butane (bimb), namely poly[[bis[μ2-1,4-bis(1H-imidazol-1-yl)butane-κ2N3:N3′][μ2-3,3′-(diazenediyl)dibenzoato-κ2O:O′]cadmium(II)] monohydrate], {[Cd(C14H8N2O4)(C10H14N2)2]·H2O}n, (1), was obtained by a typical solution reaction in mixed solvents (water andN,N′-dimethylformamide). Each CdIIcentre is six-coordinated by two O atoms of bis-monodentate bridging carboxylate groups from two azdc2−ligands and by four N atoms from four bimb ligands, forming an octahedral coordination environment. The CdIIions are connected by the bimb ligands, resulting in two-dimensional (4,4) layers, which are further pillared by the azdc2−ligands, affording a threefold interpenetrated three-dimensional α-Po topological framework with the Schläfli symbol 41263. The thermal stability and solid-state fluorescence properties of (1) have been investigated.

Synthesis, structure and electrochemical behavior of a 3D crystalline copper(II) metal-organic framework

2014 ◽  
Vol 07 (04) ◽  
pp. 1450049 ◽  
Author(s):  
Hong-Ye Bai ◽  
Wei-Qiang Fan ◽  
Chun-Bo Liu ◽  
Wei-Dong Shi ◽  
Yong-Sheng Yan
Keyword(s):  
Electrochemical Behavior ◽  
Title Compound ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Tripodal Ligand ◽  
Triclinic Space Group ◽  
Dimensional Network ◽  
Benzenedicarboxylic Acid ◽  
Metal Organic ◽  
Organic Framework

Using an flexible amide-type tripodal ligand N , N ′, N ″-tris(3-pyridyl)-1,3,5-benzenetricarboxamide (L) and 1,4-benzenedicarboxylic acid ( H 2 bdc ), a three-dimensional copper(II) metal-organic framework (MOF) formulated as [ Cu ( bdc )( L )]n has been hydrothermally synthesized and structurally characterized by IR, elemental, X-ray single-crystal diffraction and thermal analysis. The complex crystallizes in the triclinic, space group P - 1, a = 8.891(2) Å, b = 11.760(2) Å, c = 15.348(3) Å, α = 96.73(3)°, β = 105.96(3)°, γ = 106.47(3)°, V = 1446.2(5) Å3, Mr = 666.10, Dc = 1.530 g/cm3, Z = 2, F(000) = 682, GOOF = 1.0560, μ(MoKα) = 0.817 mm-1, R = 0.0366 and wR = 0.0885. The structural analyses reveal that the title compound consists of one Cu ( II ) atom, two halves of bdc, and one L ligand. Each Cu ( II ) atom is linked by two bdc ligands and three L ligands to form a three-dimensional network. In addition, the electrochemical behavior of title compound has been studied. CCDC No. 990526.

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