Metal–organic frameworks with oxazoline-containing tripodal ligand: structure changes via reaction medium and metal-to-ligand ratio

CrystEngComm ◽  
2010 ◽  
Vol 12 (12) ◽  
pp. 4328 ◽  
Author(s):  
Yong-Qing Huang ◽  
Zhong-Liang Shen ◽  
Xia-Ying Zhou ◽  
Taka-aki Okamura ◽  
Zhi Su ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Reaction Medium ◽  
Tripodal Ligand ◽  
Ligand Ratio ◽  
Ligand Structure ◽  
Structure Changes ◽  
Metal Organic

Zinc(ii) and cadmium(ii) metal–organic frameworks with 4-imidazole containing tripodal ligand: sorption and anion exchange properties

2014 ◽  
Vol 43 (16) ◽  
pp. 6012 ◽  
Author(s):  
Shui-Sheng Chen ◽  
Peng Wang ◽  
Satoshi Takamizawa ◽  
Taka-aki Okamura ◽  
Min Chen ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Metal Organic Frameworks ◽  
Tripodal Ligand ◽  
Metal Organic ◽  
Exchange Properties

Series of Cd(II) Metal–Organic Frameworks Based on a Flexible Tripodal Ligand and Polycarboxylate Acids: Syntheses, Structures, and Photoluminescent Properties

2012 ◽  
Vol 12 (5) ◽  
pp. 2435-2444 ◽  
Author(s):  
Xianjuan Wang ◽  
Yanhua Liu ◽  
Chunying Xu ◽  
Qianqian Guo ◽  
Hongwei Hou ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Tripodal Ligand ◽  
Metal Organic

scholarly journals Effect of metal–ligand ratio on the CO2 adsorption properties of Cu–BTC metal–organic frameworks

RSC Advances ◽  
2018 ◽  
Vol 8 (62) ◽  
pp. 35551-35556 ◽  
Author(s):  
Yuanyuan Liu ◽  
Suqin Liu ◽  
Alexandre A. S. Gonçalves ◽  
Mietek Jaroniec
Keyword(s):  
Co2 Adsorption ◽  
Metal Organic Frameworks ◽  
Adsorption Properties ◽  
Ligand Ratio ◽  
Metal Organic ◽  
Metal Ligand

Initially, in the synthesis of Cu–BTC MOFs some fraction of Cu was expected to be replaced with Mg to enhance its CO2 adsorption properties.

scholarly journals Two Lanthanide Metal–Organic Frameworks Based on Semi-Rigid T-Shaped Tricarboxylate Ligand: Syntheses, Structures, and Properties

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 868
Author(s):  
Yun-Shan Xue ◽  
Zhuo-Lin Chen ◽  
Youzhen Dong ◽  
Wei-Wei Cheng
Keyword(s):  
Near Infrared ◽  
Metal Organic Frameworks ◽  
Infrared Emission ◽  
Tripodal Ligand ◽  
Structures And Properties ◽  
3D Network ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Near Infrared Emission ◽  
Solvothermal Conditions

By using a semi-rigid tripodal ligand 5-(4-carboxybenzyloxy)isophthalic acid (H3L) and lanthanide metal ions (Nd3+, Tb3+), two novel lanthanide metal–organic frameworks, namely, {[Nd2L2(DMF)4] DMF}n (1), and {TbL(DMF)(H2O)}n (2), were synthesized under mild solvothermal conditions and structurally characterized by X-ray single crystal diffraction. Compounds 1 and 2 are isostructural, in which L3– ligands linked dinuclear lanthanide metal–carboxylate units to form non-interpenetrated 3D network with (3,6)-connected topology. Luminescent investigations reveal that compound 1 displays the near-infrared emission at room temperature, and compound 2 can be employed as selective probe for Cr2O72− anion in aqueous solution based on luminescence quenching. Moreover, compound 2 exhibits catalytic activity for cyclo-addition of CO2 and epoxides under relatively mild conditions.

scholarly journals Enhancing microperoxidase activity and selectivity: immobilization in metal-organic frameworks

2019 ◽  
Vol 23 (07n08) ◽  
pp. 718-728 ◽  
Author(s):  
Effrosyni Gkaniatsou ◽  
Christian Serre ◽  
Jean-Pierre Mahy ◽  
Nathalie Steunou ◽  
Rémy Ricoux ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Metal Organic Frameworks ◽  
Environmental Pollutants ◽  
Reaction Medium ◽  
Alkaline Solutions ◽  
Phenol Derivatives ◽  
Low Concentrations ◽  
Lack Of Control ◽  
Metal Organic ◽  
Acidic Conditions

Microperoxidases 8 (MP8) and 11 (MP11) are heme-containing peptides obtained by the proteolytic digestion of Cytochrome c. They act as mini-enzymes that combine both peroxidase-like and Cytochrome P450-like activities that may be useful in the synthesis of fine chemicals or in the degradation of environmental pollutants. However, their use is limited by their instability in solution due to (i) the bleaching of the heme in the presence of an excess of H2O2, (ii) the decoordination of the distal histidine ligand of the iron under acidic conditions and, (iii) their tendency to aggregate in aqueous alkaline solutions, even at low concentrations. Additionally, both MP8 and MP11 show relatively low selectivity, due to the lack of control of the substrates by a specific catalytic pocket on the distal face of the heme. Both stability and selectivity issues can be effectively addressed by immobilization of microperoxidases in solid matrices, which can also lead to their possible recycling from the reaction medium. Considering their relatively small size, the pore inclusion of MPs into Metal-Organic Frameworks appeared to be more adequate compared to other immobilization methods that have been widely investigated for decades. The present minireview describes the catalytic activities of MP8 and MP11, their limitations, and various results describing their immobilization into MOFs which led to MP11- or MP8@MOF hybrid materials that display good activity in the oxidation of dyes and phenol derivatives, with remarkable recyclability due to the stabilization of the MPs inside the MOF cavities. An example of selective oxidation of dyes according to their charge by MP8@MOF hybrid materials is also highlighted.

Metal-Organic Frameworks

2021 ◽  
Author(s):  
Lars Öhrström ◽  
Francoise M. Amombo Noa
Keyword(s):  
Metal Organic Frameworks ◽  
Metal Organic
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