scholarly journals The Synthesis and Properties of TIPA-Dominated Porous Metal-Organic Frameworks

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2791
Author(s):  
Hongru Fu ◽  
Yuying Jiang ◽  
Fei Wang ◽  
Jian Zhang
Keyword(s):  
Single Crystal ◽  
Organic Molecule ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Donor Ligands ◽  
Tridentate Ligand ◽  
High Porosity ◽  
Design Strategies ◽  
Small Organic Molecule ◽  
Metal Organic

Metal-Organic Frameworks (MOFs) as a class of crystalline materials are constructed using metal nodes and organic spacers. Polydentate N-donor ligands play a mainstay-type role in the construction of metal−organic frameworks, especially cationic MOFs. Highly stable cationic MOFs with high porosity and open channels exhibit distinct advantages, they can act as a powerful ion exchange platform for the capture of toxic heavy-metal oxoanions through a Single-Crystal to Single-Crystal (SC-SC) pattern. Porous luminescent MOFs can act as nano-sized containers to encapsulate guest emitters and construct multi-emitter materials for chemical sensing. This feature article reviews the synthesis and application of porous Metal-Organic Frameworks based on tridentate ligand tris (4-(1H-imidazol-1-yl) phenyl) amine (TIPA) and focuses on design strategies for the synthesis of TIPA-dominated Metal-Organic Frameworks with high porosity and stability. The design strategies are integrated into four types: small organic molecule as auxiliaries, inorganic oxyanion as auxiliaries, small organic molecule as secondary linkers, and metal clusters as nodes. The applications of ratiometric sensing, the adsorption of oxyanions contaminants from water, and small molecule gas storage are summarized. We hope to provide experience and inspiration in the design and construction of highly porous MOFs base on polydentate N-donor ligands.

Two 3D ZnII Metal–Organic Frameworks with 3- and 8-Fold Interpenetration: Syntheses, Structures, Photodegradation, and Photoluminescent Properties

2017 ◽  
Vol 70 (3) ◽  
pp. 314 ◽  
Author(s):  
Chuan-Bin Fan ◽  
Xiang-Min Meng ◽  
Yu-Hua Fan ◽  
Zi-Ao Zong ◽  
Xiao-Yin Zhang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Metal Organic Frameworks ◽  
Xrd Analysis ◽  
Donor Ligands ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic ◽  
Solvothermal Conditions ◽  
Single Crystal Xrd Analysis

Two novel coordination polymers, namely {[Zn(sbdc)(bmib)]·0.4H2O}n (1) and {[Zn(sbdc)(bibd)]·DMF}n (2) (H2sbdc = 4,4′-stilbenedicarboxylic, bmib = 1,4-bis(2-methylimidazol-1-yl)butane, bibd = 1,1′-(1,4-butanediyl)bis(imidazole), DMF = N,N-dimethylformamide), have been acquired under solvothermal conditions, and have been characterised by elemental analysis, infrared spectra, thermogravimetric analysis, and single-crystal X-ray diffraction (XRD). Single-crystal XRD analysis reveals that 1 shows eight-fold interpenetrating 3D frameworks with a four-connected (66) sqc6 topology and 2 displays four-connected three-fold interpenetrating 3D frameworks. The flexible N-donor ligands play an important role in the construction of the final topological structures for 1 and 2. Furthermore, 1 and 2 exhibit good photodegradation capability and photoluminescence properties.

scholarly journals Structural and dynamic studies of substrate binding in porous metal–organic frameworks

2017 ◽  
Vol 46 (1) ◽  
pp. 239-274 ◽  
Author(s):  
Timothy L. Easun ◽  
Florian Moreau ◽  
Yong Yan ◽  
Sihai Yang ◽  
Martin Schröder
Keyword(s):  
Small Molecules ◽  
Gas Adsorption ◽  
Specific Binding ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
High Porosity ◽  
Considerable Research ◽  
Wide Range ◽  
Metal Organic ◽  
The Subject

Porous metal–organic frameworks (MOFs) are the subject of considerable research interest because of their high porosity and capability of specific binding to small molecules, thus underpinning a wide range of materials functions such as gas adsorption, separation, drug delivery, catalysis, and sensing.

Hierarchically porous metal–organic frameworks with single-crystal structures and their enhanced catalytic properties

CrystEngComm ◽  
2018 ◽  
Vol 20 (38) ◽  
pp. 5754-5759 ◽  
Author(s):  
Hang Zhang ◽  
Jinhao Huo ◽  
Jinqing Li ◽  
Feier Li ◽  
Chongxiong Duan ◽  
...  
Keyword(s):  
Single Crystal ◽  
Crystal Structures ◽  
Catalytic Properties ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Hydrothermal Conditions ◽  
Hierarchically Porous ◽  
Single Crystal Structures ◽  
Metal Organic

Stable hierarchically porous metal–organic frameworks (HP-MOFs) have been successfully synthesized under hydrothermal conditions using a template strategy.

Pitfalls in metal–organic framework crystallography: towards more accurate crystal structures

2017 ◽  
Vol 46 (16) ◽  
pp. 4867-4876 ◽  
Author(s):  
S. Øien-Ødegaard ◽  
G. C. Shearer ◽  
D. S. Wragg ◽  
K. P. Lillerud
Keyword(s):  
Single Crystal ◽  
Structure Determination ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic ◽  
Crystal Twinning

Proper handling of pore-occupying species and crystal twinning in structure determination of porous metal–organic frameworks by single crystal X-ray diffraction.

scholarly journals Crystal Engineering and Applications of Functional Metal-Organic Frameworks

2014 ◽  
Vol 70 (a1) ◽  
pp. C16-C16
Author(s):  
Xiao-Ming Chen
Keyword(s):  
Crystal Engineering ◽  
Solid Phase ◽  
Selective Adsorption ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
High Porosity ◽  
Pore Surface ◽  
Practical Applications ◽  
Metal Organic ◽  
Gas Molecules

As a new kind of molecular materials composed of metal ions (or clusters) and organic bridging ligands that are interconnected by coordination bonds, porous metal-organic frameworks (MOFs) have many useful characteristics, such as high crystallinity, high porosity, structural diversity, designable frameworks, framework flexibility, as well as unique and modifiable organic pore surface. Therefore, they exhibit very promising potential applications in molecular adsorption/separation, catalysis, and sensors, etc. For example, they can be used for selective adsorption and separation of different gas molecules, such as CO2 and N2, capture of CO2 [2], sensing of small organic molecules and gas molecules, such as O2 and CO2, as well as catalysts and devices for solid-phase microextraction. In this presentation, the design and synthesis, unique pore surface, interesting functionalities will be presented by selected examples, in particular those of metal-azolate frameworks (MAFs) and a few devices useful for practical applications, from our group [1-3]. This work was supported by MoST (973 project) and NSFC.

Porous metal–organic frameworks based on 3,6-bis(4-benzoic acid)-N-(4-benzoic acid)carbazole for HPLC separation of small organic molecules

2018 ◽  
Vol 2 (8) ◽  
pp. 1508-1514 ◽  
Author(s):  
Dong-Hui Chen ◽  
Chao Zhuo ◽  
Yue-Hong Wen ◽  
Ling Lin ◽  
Yu-Xiao Zhang ◽  
...  
Keyword(s):  
Particle Size ◽  
Benzoic Acid ◽  
Organic Molecule ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Hplc Separation ◽  
Small Organic Molecules ◽  
Metal Organic ◽  
Controllable Particle Size

A stable porous MOF with a controllable particle size can be used as an HPLC situational phase for small organic molecule separations.

scholarly journals Porous metal-organic frameworks incorporating mixed ligands

2014 ◽  
Vol 70 (a1) ◽  
pp. C1476-C1476
Author(s):  
Clive Oliver
Keyword(s):  
Single Crystal ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Structural Diversity ◽  
3 Dimensional ◽  
Trimesic Acid ◽  
Mixed Ligands ◽  
Cadmium Metal ◽  
Metal Organic

Metal-organic frameworks (MOFs), infinite systems built up of metal ions and organic ligands have been extensively studied in materials and supramolecular chemistry due their structural diversity and application as porous materials, in catalysis, ion exchange, gas storage and purification. [1] A novel, 2-fold interpenetrated, pillared, cadmium metal-organic framework was synthesized using trimesic acid and 1,2-bis(4-pyridyl)ethane.[2] Single crystal X-ray analysis revealed a 2-fold interpenetrated, 3-dimensional framework which exhibits a 3,5-connected network with the Schläfli symbol of [(6^3)(6^9.8)] and hms topology. This compound exhibits a temperature-induced single-to-crystal-single-crystal (SC–SC) transformation upon the release of N,N'-dimethylformamide (stable up to 3000C). SC–SC transformation was also observed when the desolvated form absorbed selected polar and non-polar organic solvents. In addition, gas (N_2, CO_2 and N_2O) sorption experiments were performed showing 2.5% N_2, 4.5% CO_2 and 3.4% N_2O absorption by mass at room temperature and moderate gas pressures (~10 bar). A similar MOF was produced when 1,3,5-benzenetricarboxylic acid was replaced with 5-nitro-1,3-benzenedicarboxylic acid. This MOF displays 4-fold interpenetration and also maintains the host framework structure upon heating.

Controlled Growth of the Non-centrosymmetric Zn(3-ptz)2 and Zn(Oh)(3-ptz) Metal-organic Frameworks

2019 ◽  
Author(s):  
javier enriquez ◽  
Ignacio Chi-Duran ◽  
Carolina Manquian ◽  
Felipe Herrera ◽  
Ruben Fritz ◽  
...  
Keyword(s):  
Single Crystal ◽  
Nonlinear Optical ◽  
Metal Organic Frameworks ◽  
Molar Ratio ◽  
Thermal Synthesis ◽  
Small Crystals ◽  
Alkaline Environments ◽  
Potential Applications ◽  
Metal Organic ◽  
Long Rod

Non-centrosymmetric single-crystal metal-organic frameworks (MOF) are promising candidates for phase-matched nonlinear optical communication, but typical hydrothermal synthesis produces small crystals with relatively low transmittance and poor phase matching. We study the effect of the metal-to-ligand molar ratio and reaction pH on the hydro-thermal synthesis of the non-centrosymmetric Zn(3-ptz)<sub>2</sub> and Zn(OH)(3-ptz) MOFs with <i>in-situ </i>ligand formation. In acidic environments, we find that decreasing the amount of ligand below the stoichiometric molar ratio 1:2 also produces highly transparent single-crystal octahedrons of <b>Zn(3-ptz)<sub>2</sub></b>. In alkaline environments, we obtain long rod-like <b>Zn(OH)(3-ptz) </b>crystals whose length exceeds previous reports by up to four orders of magnitude. Potential applications of these results in the development of MOF-based nonlinear optical devices are discussed.

Sign in / Sign up

Export Citation Format

Share Document