Liquid/vapor-induced reversible dynamic structural transformation of a three-dimensional Cu-based MOF to a one-dimensional MOF showing gate adsorption

2017 ◽  
Vol 46 (20) ◽  
pp. 6762-6768 ◽  
Author(s):  
Atsushi Kondo ◽  
Takayuki Suzuki ◽  
Ryosuke Kotani ◽  
Kazuyuki Maeda
Keyword(s):  
Structural Transformation ◽  
Selective Adsorption ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Adsorption Properties ◽  
One Dimensional ◽  
1D Chain ◽  
Metal Organic ◽  
Liquid Vapor ◽  
Organic Framework

A new 3D metal–organic framework (MOF) is reversibly transformed to a 1D chain MOF showing selective adsorption properties.

scholarly journals Imidazole-containing Cd Metal-Organic Framework with Selective Adsorption Properties

2019 ◽  
Vol 118 ◽  
pp. 01044
Author(s):  
Yu-Ling Li ◽  
Zin Zheng ◽  
Hui Nie ◽  
Chun-Mei Zhao ◽  
Yu-Fei Wang ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Selective Adsorption ◽  
Metal Organic Framework ◽  
Chain Structure ◽  
Adsorption Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
1D Chain ◽  
Metal Organic ◽  
Organic Framework

Metal-organic framework material [Cd(tib)(dnbpdc) (H2O)]·2DMF·2H2O (1) [tib = 1, 3, 5-tris(1-imidazolyl)benzene, H2dnbpdc = 2, 2′-dinitro-4, 4′-biphenyldicarboxylic acid] was synthesized and characterized by Thermogravimetric analyses (TGA), Powder X-ray diffraction (PXRD) analyses and Bruker D8 Advance X-ray diffractometer. The results showed that 1 was a 1D chain structure to be joined together by hydrogen bonds to generate a 3D supramolecular structure. CO2 and N2 adsorption behavior of the material was studied. It is significative that 1 can selective sorption of CO2.

Synthesis, Structure, and Properties of a Chiral Zinc(II) Metal-Organic Framework Featuring Linear Trinuclear Secondary Building Blocks

2012 ◽  
Vol 65 (12) ◽  
pp. 1662 ◽  
Author(s):  
Zilu Chen ◽  
Chuanbing Zhang ◽  
Xianlin Liu ◽  
Zhong Zhang ◽  
Fupei Liang
Keyword(s):  
Building Block ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Building Blocks ◽  
Triangular Prism ◽  
Structure And Properties ◽  
Adsorption Selectivity ◽  
One Dimensional ◽  
Metal Organic ◽  
Organic Framework

A chiral metal-organic framework formulated as [Zn3(L-TMTA)2(4,4′-bpy)4]·24H2O (1) was prepared from the reaction of Zn(NO3)2·6H2O with trimesoyltri(L-alanine) (L-TMTAH3) in the presence of 4,4′-bipyridine (4,4′-bpy). Compound 1 features linear trinuclear secondary building blocks [Zn3(syn-syn-COO)2(μ2,η3-COO)2]2+. Each linear trinuclear secondary building block is further linked to another eight ones around it by four L-TMTA3– ligands and eight 4,4′-bpy ligands, leading to the construction of a uninodal three-dimensional framework with triangular prism-like one-dimensional channels. Dehydrated compound 1 displays remarkable adsorption selectivity on CO2 and water vapour over N2 gas.

Synthesis, structures, and fluorescence properties of one novel Cobalt metal–organic framework based on a tetraphenylethene-core ligand

2019 ◽  
Vol 44 (3-4) ◽  
pp. 193-197
Author(s):  
Xiudian Xu ◽  
Yu Liang ◽  
Junfeng Li ◽  
Lei Zhou ◽  
Li-Zhuang Chen ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
Fluorescence Emission ◽  
Dimensional Structure ◽  
Cobalt Metal ◽  
One Dimensional ◽  
Metal Organic ◽  
The One ◽  
Mixture Of Ligands ◽  
Organic Framework

A new three-dimensional luminescent cobalt (II) metal–organic framework, [Co(Titpe)(bcpf)·(DMF)]·(H2O)2·(DMF) (compound 1, JUST-8) (Titpe = 1,1,2,2-tetrakis(4-(1H-imidazol-1-yl)phenyl)ethane, bcpf = 4,4′-sulfonyldibenzoic acid; DMF =  N, N-dimethylformamide), has been solvothermally synthesized by using CoCl2·6H2O and a mixture of ligands: Titpe ligand and bcpf ligand. Single crystal X-ray analysis reveals that 1 crystallizes in the triclinic system and [Formula: see text] space group with a = 13.2097(14) Å, b = 13.9519(14) Å, c = 14.4413(15) Å, α = 89.949(7)°, β = 70.303(7)°, γ = 80.322(7)°, V = 2465.7(5) Å3, Z = 2, Mr =1032.97, Dc = 1.391 g/cm3, μ = 0.455 mm−1, F(000) = 1070, R = 0.0585, and wR = 0.1540 for 8674 observed reflections ( I > 2σ( I)). Its overall structure is a double-fold interpenetrated framework, and it shows a porosity of 12.97% based on a calculation by PLATON and a 4- c type topological network with the point symbol of {6^5.8}. The Co atom bridges the Titpe ligands to form the one-dimensional chains into a two-dimensional layered structure and then connects the auxiliary ligands to get a three-dimensional structure. Compound 1 showed a blue fluorescence emission with the peak maximum at 431 nm (λex = 314 nm).

scholarly journals A Heterometallic Three-Dimensional Metal−Organic Framework Bearing an Unprecedented One-Dimensional Branched-Chain Secondary Building Unit

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2190
Author(s):  
Jing Chen ◽  
Meng-Yao Chao ◽  
Yan Liu ◽  
Bo-Wei Xu ◽  
Wen-Hua Zhang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
3D Structure ◽  
Three Dimensional ◽  
Solvothermal Reaction ◽  
Secondary Building Unit ◽  
One Dimensional ◽  
Building Unit ◽  
Metal Organic ◽  
Branched Chain ◽  
Organic Framework

A heterometallic metal−organic framework (MOF) of [Cd6Ca4(BTB)6(HCOO)2(DEF)2(H2O)12]∙DEF∙xSol (1, H3BTB = benzene-1,3,5-tribenzoic acid; DEF = N,N′-diethylformamide; xSol. = undefined solvates within the pore) was prepared by solvothermal reaction of Cd(NO3)2·4H2O, CaO and H3BTB in a mixed solvent of DEF/H2O/HNO3. The compatibility of these two divalent cations from different blocks of the periodic table results in a solid-state structure consisting of an unusual combination of a discrete V-shaped heptanuclear cluster of [Cd2Ca]2Ca′ and an infinite one-dimensional (1D) chain of [Cd2CaCa′]n that are orthogonally linked via a corner-shared Ca2+ ion (denoted as Ca′), giving rise to an unprecedented branched-chain secondary building unit (SBU). These SBUs propagate via tridentate BTB to yield a three-dimensional (3D) structure featuring a corner-truncated P41 helix in MOF 1. This outcome highlights the unique topologies possible via the combination of carefully chosen s- and d-block metal ions with polydentate ligands.

scholarly journals Synthesis, structure and gas adsorption properties of a stable microporous Cu-based metal–organic framework assembled from a T-shaped pyridyl dicarboxylate ligand

RSC Advances ◽  
2017 ◽  
Vol 7 (29) ◽  
pp. 17697-17703 ◽  
Author(s):  
Di Wang ◽  
Libo Sun ◽  
Yuchuan Liu ◽  
Jianfeng Du ◽  
Shun Wang ◽  
...  
Keyword(s):  
High Stability ◽  
Gas Adsorption ◽  
Ambient Pressure ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Adsorption Properties ◽  
Adsorption Capacities ◽  
Metal Organic ◽  
Dicarboxylate Ligand ◽  
Organic Framework

A three-dimensional microporous metal–organic framework assembled from a T-shaped pyridyl dicarboxylate ligand has been synthesized. It possesses high stability and adsorption capacities for CO2 (114 cm3 g−1, 273 K) under ambient pressure.

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.

Polarized Micropores in a Novel 3D Metal–Organic Framework for Selective Adsorption Properties

2012 ◽  
Vol 51 (9) ◽  
pp. 5022-5025 ◽  
Author(s):  
Chengli Jiao ◽  
Jian Zhang ◽  
Shuang Wang ◽  
Xiaoliang Si ◽  
Wansheng You ◽  
...  
Keyword(s):  
Selective Adsorption ◽  
Metal Organic Framework ◽  
Adsorption Properties ◽  
Metal Organic ◽  
Organic Framework
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