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 twofold interpenetrating three-dimensional zinc–organic framework built from naphthalene-1,4-dicarboxylate and 4,4′-bipyridine ligands

2014 ◽  
Vol 70 (5) ◽  
pp. 498-501 ◽  
Author(s):  
Guo-Gen Cui ◽  
Xiao-Xi Yang ◽  
Jian-Ping Yang
Keyword(s):  
Dicarboxylic Acid ◽  
Title Compound ◽  
Room Temperature ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Secondary Building Unit ◽  
Blue Fluorescence ◽  
Tetrahedral Geometry ◽  
Bright Blue Fluorescence ◽  
Bright Blue

A novel three-dimensional ZnII complex, poly[[(μ2-4,4′-bipyridine)(μ4-naphthalene-1,4-dicarboxylato)(μ2-naphthalene-1,4-dicarboxylato)dizinc(II)] dimethylformamide monosolvate monohydrate], {[Zn2(C12H6O4)2(C10H8N2)]·2C3H7NO·H2O)} n , has been prepared by the solvothermal assembly of Zn(NO3)·6H2O, naphthalene-1,4-dicarboxylic acid and 4,4′-bipyridine. The two crystallographically independent Zn atoms adopt the same four-coordinated tetrahedral geometry (ZnO3N) by bonding to three O atoms from three different naphthalene-1,4-dicarboxylate (1,4-ndc) ligands and one N atom from a 4,4′-bipyridine (bpy) ligand. The supramolecular secondary building unit (SBU) is a distorted paddle-wheel-like {Zn2(COO)2N2O2} unit and these units are linked by 1,4-ndc ligands within the layer to form a two-dimensional net parallel to the ab plane, which is further connected by bpy ligands to form the three-dimensional framework. The single net leaves voids that are filled by mutual interpenetration of an independent equivalent framework in a twofold interpenetrating architecture. The title compound is stable up to 673 K. Excitation and luminescence data observed at room temperature show that it emits bright-blue fluorescence.

A hydrostable and twofold interpenetrating three-dimensional zinc–organic framework with rob topology based on 4,4′-oxydibenzoate and 3,3′-dimethyl-4,4′-bipyridine ligands

2016 ◽  
Vol 72 (5) ◽  
pp. 373-378 ◽  
Author(s):  
Feng-Lan Liang ◽  
De-Yun Ma ◽  
Liang Qin
Keyword(s):  
Title Compound ◽  
Three Dimensional ◽  
New Class ◽  
Pyramidal Geometry ◽  
Potential Applications ◽  
Metal Organic ◽  
Ph Range ◽  
Square Pyramidal Geometry ◽  
Bright Blue Fluorescence ◽  
Bright Blue

Metal–organic frameworks (MOFs) are a new class of porous materials that have received widespread attention due to their potential applications in gas storage and/or separation, catalysis, luminescence, and so on. The title compound, poly[[(μ2-3,3′-dimethyl-4,4′-bipyridine-κ2N:N′)bis(μ4-4,4′-oxydibenzoato-κ4O:O′:O′′:O′′′)dizinc] tetrahydrate], {[Zn2(C14H8O5)2(C12H12N2)]·4H2O}n, has been prepared by the solvothermal assembly of Zn(NO3)2·6H2O, 4,4′-oxydi(benzoic acid) and 3,3′-dimethyl-4,4′-bipyridine. The two ZnIIatoms adopt the same five-coordinated distorted square-pyramidal geometry (i.e.ZnO4N), bonding to four O atoms from four different 4,4′-oxydibenzoate (oba) ligands and one N atom from a 3,3′-dimethyl-4,4′-bipyridine (dmbpy) ligand. The supramolecular secondary building unit (SBU) is a paddle-wheel [Zn2(COO)4] unit and these units are linked by oba ligands within the layer to form a two-dimensional net parallel to thebaxis, with the dmbpy ligands pointing alternately up and down, which is further extended by dmbpy ligands to form a three-dimensional framework withrobtopology. 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 and is stable in aqueous solutions in the pH range 5–9. Excitation and luminescence data observed at room temperature show that it emits a bright-blue fluorescence.

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 porous anionic zinc(II) metal-organic framework for gas adsorption, selective uptake of dyes and sensing of Fe3+ by Tb3+ ion encapsulation

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yu-Jie Liang ◽  
Jun Yao ◽  
Ming Deng ◽  
Yan-E Liu ◽  
Quan-Qing Xu ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Gas Adsorption ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Selective Uptake ◽  
Mixed Ligands ◽  
Metal Organic ◽  
Dicarboxylate Ligand ◽  
Organic Framework

A three-dimensional (3D) metal-organic framework [(CH3)2NH2][Zn2(DMTDC)2(3-mtz)]•4DMF•3H2O (Zn-MOF) has been solvothermally synthesized by using mixed ligands of 3-methyl-1,2,4-triazole (3-Hmtz) and a thiophene-functionalized dicarboxylate ligand, 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid (H2DMTDC). Zn-MOF exhibits a uninodal...

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 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 three-dimensional coordination polymer based on the Zn4(μ3-OH)2unit: poly[[(μ4-benzene-1,4-dicarboxylato)bis(μ3-benzene-1,4-dicarboxylato)bis(μ3-hydroxido)bis(1,10-phenanthroline-5,6-dione)tetrazinc] dihydrate]

2015 ◽  
Vol 71 (2) ◽  
pp. 136-139
Author(s):  
Meng Wen ◽  
Zu-Ping Xiao ◽  
Chun-Ya Wang ◽  
Xi-He Huang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Coordination Polymer ◽  
Dicarboxylic Acid ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Hydrogen Bonding Interactions ◽  
Carboxylate Groups ◽  
Form Part

The title compound, {[Zn4(C8H4O4)3(OH)2(C12H6N2O2)2]·2H2O}n, has been prepared hydrothermally by the reaction of Zn(NO3)2·6H2O with benzene-1,4-dicarboxylic acid (H2bdc) and 1,10-phenanthroline-5,6-dione (pdon) in H2O. In the crystal structure, a tetranuclear Zn4(OH)2fragment is located on a crystallographic inversion centre which relates two subunits, each containing a [ZnN2O4] octahedron and a [ZnO4] tetrahedron bridged by a μ3-OH group. The pdon ligand chelates to zinc through its two N atoms to form part of the [ZnN2O4] octahedron. The two crystallographically independent bdc2−ligands are fully deprotonated and adopt μ3-κO:κO′:κO′′ and μ4-κO:κO′:κO′′:κO′′′ coordination modes, bridging three or four ZnIIcations, respectively, from two Zn4(OH)2units. The Zn4(OH)2fragment connects six neighbouring tetranuclear units through four μ3-bdc2−and two μ4-bdc2−ligands, forming a three-dimensional framework with uninodal 6-connected α-Po topology, in which the tetranuclear Zn4(OH)2units are considered as 6-connected nodes and the bdc2−ligands act as linkers. The uncoordinated water molecules are located on opposite sides of the Zn4(OH)2unit and are connected to it through hydrogen-bonding interactions involving hydroxide and carboxylate groups. The structure is further stabilized by extensive π–π interactions between the pdon and μ4-bdc2−ligands.

scholarly journals Crystal structure of poly[(4-aminopyridine-κN)(N,N-dimethylformamide-κO)(μ3-pyridine-3,5-dicarboxylato-κ3N:O3:O5)copper(II)]

2016 ◽  
Vol 72 (4) ◽  
pp. 440-443
Author(s):  
Cheng-Chen Shen ◽  
Xiu-Ni Hua ◽  
Lei Han
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Building Block ◽  
Title Compound ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Coordination Geometry ◽  
Secondary Building Unit ◽  
Metal Organic

The title compound, [Cu(C7H3NO4)(C5H6N2)(C3H7NO]n, is an amino-functionalized chiral metal–organic framework with (10,3)-atopology. It has been constructedviathe assembly of the achiral triconnected pyridine-3,5-dicarboxylate (3,5-PDC) building block and a triconnected CuIIatom. Each CuIIion is coordinated by two O atoms and one N atom, respectively, of three crystallographically independent 3,5-PDC ligands. The square-pyramidal (CuN2O3) coordination geometry of the CuIIion is completed by an N atom of a terminal 4-aminopyridine (4-APY) ligand and the O atom of a terminalN,N-dimethylformamide (DMF) ligand to give a triconnected `T'-shaped secondary building unit, which becomes trigonal in the resulting (10,3)-atopology. In the three-dimensional structure, weak N—H...O hydrogen bonds are observed in which the donor N—H groups are provided by the 4-APY ligands and the acceptor O atoms are provided by the non-coordinating carboxylate O atoms of the 3,5-PDC ligands.

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}.

Sign in / Sign up

Export Citation Format

Share Document