scholarly journals Crystal structure of poly[bis(ammonium) [bis(μ4-benzene-1,3,5-tricarboxylato)dizincate] 1-methylpyrrolidin-2-one disolvate]

2016 ◽  
Vol 72 (5) ◽  
pp. 764-767 ◽  
Author(s):  
Carlos Ordonez ◽  
Marina S. Fonari ◽  
Qiang Wei ◽  
Tatiana V. Timofeeva
Keyword(s):  
Metal Organic Framework ◽  
Solvent Molecule ◽  
Three Dimensional ◽  
Outer Sphere ◽  
Charge Balance ◽  
Coordination Environment ◽  
Secondary Building Units ◽  
Metal Organic ◽  
Solvent Molecules ◽  
Anionic Framework

The title three-dimensional metal–organic framework (MOF) compound, {(NH4)2[Zn2(C9H3O6)2]·2C5H9NO}n, features an anionic framework constructed from Zn2+cations and benzene-1,3,5-tricarboxylate (BTC) organic anions. Charge balance is achieved by outer sphere ammonium cations formed by degradation of di-n-butylamine in the solvothermal synthesis of the compound. Binuclear {Zn2(COO)2} entities act as the framework's secondary building units. Each ZnIIatom has a tetrahedral coordination environment with an O4set of donor atoms. The three-dimensional framework adopts a rutile-type topology and channels are filled in an alternating fashion with ordered and disordered 1-methylpyrrolidin-2-one solvent molecules and ammonium cations. The latter are held in the channelsviafour N—H...O hydrogen bonds, including three with the benzene-1,3,5-tricarboxylate ligands of the anionic framework and one with a 1-methylpyrrolidin-2-one solvent molecule.

A Novel (3,4,9)-Connected 3D Metal–Organic Framework Based on the Non-Planar Tricarboxyl Tecton and Zn5O4-Cluster SBU

2015 ◽  
Vol 68 (1) ◽  
pp. 161 ◽  
Author(s):  
Zhuo-Wei Wang ◽  
Hui Zhao ◽  
Min Chen ◽  
Min Hu
Keyword(s):  
Thermal Stability ◽  
Benzoic Acid ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Crystalline Material ◽  
Tripodal Ligand ◽  
Secondary Building Units ◽  
Metal Organic ◽  
Organic Framework

Combination of a non-planar tripodal ligand 3,4-bi(4-carboxyphenyl)-benzoic acid (H3L) and Zn5O4-cluster secondary building units affords a highly connected three-dimensional metal–organic framework, {[Zn5(μ3-OH)3(μ2-OH)L2(H2O)2](H2O)2}n (1), which exhibits an unusual (3,4,9)-connected (42.5)(3.43.52)(32.45.511.613.73.82) topological net. The thermal stability and solid luminescence of the crystalline material have also been investigated.

A Zn(ii) metal–organic framework with dinuclear [Zn2(N-oxide)2] secondary building units

2019 ◽  
Vol 48 (19) ◽  
pp. 6314-6318 ◽  
Author(s):  
Rika Ochi ◽  
Shin-ichiro Noro ◽  
Kazuya Kubo ◽  
Takayoshi Nakamura
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
Pyridinedicarboxylic Acid ◽  
Secondary Building Units ◽  
Metal Organic ◽  
Organic Framework

A three-dimensional metal–organic framework with unprecedented [Zn2(N-oxide)2] secondary building units was synthesized using 3,5-pyridinedicarboxylic acid N-oxide.

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.

scholarly journals Crystal structure of pyridinium tetraisothiocyanatodipyridinechromium(III) pyridine monosolvate

2019 ◽  
Vol 75 (12) ◽  
pp. 1875-1879
Author(s):  
Tristan Neumann ◽  
Inke Jess ◽  
Christian Näther
Keyword(s):  
Crystal Structure ◽  
Solvent Molecule ◽  
Three Dimensional ◽  
Charge Balance ◽  
Pyridine Ligands ◽  
Compound C ◽  
Dimensional Network ◽  
The Mean ◽  
Pyridinium Cations ◽  
Solvent Molecules

In the crystal structure of the title compound, (C5H6N)[Cr(NCS)4(C5H5N)2]·C5H5N, the CrIII ions are octahedrally coordinated by four N-bonding thiocyanate anions and two pyridine ligands into discrete negatively charged complexes, with the CrIII ion, as well as the two pyridine ligands, located on crystallographic mirror planes. The mean planes of the two pyridine ligands are rotated with respect to each other by 90°. Charge balance is achieved by one protonated pyridine molecule that is hydrogen bonded to one additional pyridine solvent molecule, with both located on crystallographic mirror planes and again rotated by exactly 90°. The pyridinium H atom was refined as disordered between both pyridine N atoms in a 70:30 ratio, leading to a linear N—H...N hydrogen bond. In the crystal, discrete complexes are linked by weak C—H...S hydrogen bonds into chains that are connected by additional C—H...S hydrogen bonding via the pyridinium cations and solvent molecules into layers and finally into a three-dimensional network.

scholarly journals Crystal structure of a low-spin poly[di-μ3-cyanido-di-μ2-cyanido-bis(μ2-2-ethylpyrazine)dicopper(I)iron(II)]

2019 ◽  
Vol 75 (8) ◽  
pp. 1205-1208
Author(s):  
Sofiia V. Partsevska ◽  
Dina D. Naumova ◽  
Igor P. Matushko ◽  
Olesia I. Kucheriv ◽  
Il'ya A. Gural'skiy
Keyword(s):  
Crystal Structure ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Tetrahedral Coordination ◽  
Common Edge ◽  
Coordination Environment ◽  
Metal Organic ◽  
Coordination Framework ◽  
Organic Framework

In the title metal–organic framework, [Fe(C6H8N2)2{Cu(CN)2}2] n , the low-spin FeII ion lies at an inversion centre and displays an elongated octahedral [FeN6] coordination environment. The axial positions are occupied by two symmetry-related bridging 2-ethylpyrazine ligands, while the equatorial positions are occupied by four N atoms of two pairs of symmetry-related cyanide groups. The CuI centre is coordinated by three cyanide carbon atoms and one N atom of a bridging 2-ethylpyrazine molecule, which form a tetrahedral coordination environment. Two neighbouring Cu atoms have a short Cu...Cu contact [2.4662 (7) Å] and their coordination tetrahedra are connected through a common edge between two C atoms of cyanide groups. Each Cu2(CN)2 unit, formed by two neighbouring Cu atoms bridged by two carbons from a pair of μ-CN groups, is connected to six FeII centres via two bridging 2-ethylpyrazine molecules and four cyanide groups, resulting in the formation of a polymeric three-dimensional metal–organic coordination framework.

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.

Solvothermal Synthesis, Structure, Fluorescence and Magnetism Properties of a Novel 3D Metal-Organic Framework Based on Tetranuclear Copper Secondary Building Units

2013 ◽  
Vol 834-836 ◽  
pp. 543-549
Author(s):  
Lei Wu ◽  
Ming Xue ◽  
Gérald Chaplais ◽  
Guang Shan Zhu ◽  
Shi Lun Qiu ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
Fluorescence Emission ◽  
Ferromagnetic Interaction ◽  
One Dimensional ◽  
Dimensional Network ◽  
Secondary Building Units ◽  
Metal Organic ◽  
Solvothermal Conditions ◽  
Organic Framework

A novel 3D metal-organic framework based on tetranuclear copper Secondary Building Units, [Cu2(μ3-OH)(4-oip)(DMF)]·DMF·2H2O (JUC-76) (4-oip = 4-hydroxyisophthalic, DMF =N,N-dimethylformamide, and JUC = Jilin University China), has been synthesized under solvothermal conditions. It crystallizes in monoclinic symmetry with space groupP21/n. JUC-76 possesses a three-dimensional network with one-dimensional rhombic channels of approximately 13.6 × 8.5 Å2along the [100] direction. The resulting structure of JUC-76 is a distorted rutile topology with one 3-connected organic node and one 6-connected inorganic node. And its Schläfli symbol is (4·62)2(42·610·83). In addition, JUC-76 exhibits fluorescence emission at 446 nm, and a dominant anti-ferromagnetic interaction between the Cu (II) ions.

Poly[[tetrachlorido{μ4-tetrakis[(pyridin-4-yl)oxymethyl]methane-κ4N:N′:N′′:N′′′}dizinc(II)] dimethylformamide tetrasolvate]

2013 ◽  
Vol 69 (6) ◽  
pp. 577-580 ◽  
Author(s):  
Ya-Qin Wang ◽  
Fa-Zhi Xie ◽  
Lin Du
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Zinc Nitrate ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Tetrahedral Coordination ◽  
Coordination Environment ◽  
Metal Organic

A novel metal–organic framework, {[Zn2Cl4(C25H24N4O4)]·4C3H7NO}n, has been synthesized solvothermally by assembling the semi-rigid tetrahedral ligand tetrakis[(pyridin-4-yl)oxymethyl]methane (tpom) and zinc nitrate in dimethylformamide (DMF). The crystal structure is noncentrosymmetric (P\overline{4}21c). Each ZnIIcation has a tetrahedral coordination environment (C2symmetry), which is formed by two chloride ligands and two pyridine N atoms from two tpom ligands. The tetrahedral tetradentate tpom linker has a quaternary C atom located on the crystallographic \overline{4} axis. This linker utilizes all the peripheral pyridine N atoms to connect four ZnIIcations, thereby forming a wave-like two-dimensional sheet along thecaxis. The two-dimensional layer can be topologically simplified as a typical uninodal 4-connected sql/Shubnikov net, which is represented by the Schläfli symbol {44,62}. Adjacent layers are further packed into a three-dimensional structure by C—H...Cl hydrogen bonds.

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