scholarly journals Gas adsorption and fluorescent sensing properties of two porous lanthanide metal–organic frameworks based on 3,5-bis(2-carboxy-phenoxy)-benzoic acid

Polyhedron ◽  
2019 ◽  
Vol 165 ◽  
pp. 171-176 ◽  
Author(s):  
Lingling Gao ◽  
Jie Zhang ◽  
Lijun Zhai ◽  
Xiaoqing Wang ◽  
Liming Fan ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Gas Adsorption ◽  
Metal Organic Frameworks ◽  
Sensing Properties ◽  
Fluorescent Sensing ◽  
Metal Organic ◽  
Lanthanide Metal

Two lanthanide metal–organic frameworks constructed from tris(4-carboxyphenyl)phosphane oxide with gas adsorption and magnetic properties

CrystEngComm ◽  
2018 ◽  
Vol 20 (30) ◽  
pp. 4291-4296 ◽  
Author(s):  
Tuoping Hu ◽  
Qiannan Zhao ◽  
Liangqin Huo ◽  
Lingling Gao ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Gas Adsorption ◽  
Metal Organic Frameworks ◽  
Alternating Current ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Adsorption Of Co

Based on the tripodal tris(4-carboxyphenyl)phosphane oxide ligand, two lanthanide metal–organic frameworks were obtained, with 1 showing highly selective gas adsorption of CO2/CH4 and 2 exhibiting direct and alternating current magnetic properties.

Significant centre metallic effects on the sensing properties of two isostructural lanthanide metal-organic frameworks

2017 ◽  
Vol 79 ◽  
pp. 12-16 ◽  
Author(s):  
Min-Le Han ◽  
San-Tai Wang ◽  
Zhong-Qi Li ◽  
Zhe Zhou ◽  
Dong-Sheng Li ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Sensing Properties ◽  
Metal Organic ◽  
Lanthanide Metal

Robust lanthanide metal–organic frameworks with “all-in-one” multifunction: efficient gas adsorption and separation, tunable light emission and luminescence sensing

2021 ◽  
Author(s):  
Bo Li ◽  
Jian-Peng Dong ◽  
Zhe Zhou ◽  
Rui Wang ◽  
Li-Ya Wang ◽  
...  
Keyword(s):  
Gas Adsorption ◽  
Light Emission ◽  
Metal Organic Frameworks ◽  
Gas Uptake ◽  
Metal Organic ◽  
Lanthanide Metal

A robust lanthanide MOF platform displays all-in-one multifunction, including excellent gas uptake and separation, tunable light emission and efficient luminescence sensing.

Syntheses, structures, luminescence and magnetic properties of seven isomorphous metal–organic frameworks based on 2,7-bis(4-benzoic acid)-N-(4-benzoic acid)carbazole

2018 ◽  
Vol 42 (4) ◽  
pp. 2830-2837 ◽  
Author(s):  
Dong-Hui Chen ◽  
Ling Lin ◽  
Tian-Lu Sheng ◽  
Yue-Hong Wen ◽  
Xiao-Quan Zhu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Benzoic Acid ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Lanthanide Metal

Seven isomorphous lanthanide metal–organic frameworks with special luminescence and magnetic properties are synthesized and characterized.

Three novel topologically different metal–organic frameworks built from 3-nitro-4-(pyridin-4-yl)benzoic acid

2019 ◽  
Vol 75 (2) ◽  
pp. 150-160 ◽  
Author(s):  
Tao Qin ◽  
Shunlin Zhang ◽  
Yixiong Wang ◽  
Tianjiao Hou ◽  
Dunru Zhu ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Gas Adsorption ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Crystal Structure Analysis ◽  
Coordination Geometry ◽  
Design And Synthesis ◽  
Connected Node ◽  
Metal Organic ◽  
3D Framework

The design and synthesis of metal–organic frameworks (MOFs) have attracted much interest due to the intriguing diversity of their architectures and topologies. However, building MOFs with different topological structures from the same ligand is still a challenge. Using 3-nitro-4-(pyridin-4-yl)benzoic acid (HL) as a new ligand, three novel MOFs, namely poly[[(N,N-dimethylformamide-κO)bis[μ2-3-nitro-4-(pyridin-4-yl)benzoato-κ3 O,O′:N]cadmium(II)] N,N-dimethylformamide monosolvate methanol monosolvate], {[Cd(C12H7N2O4)2(C3H7NO)]·C3H7NO·CH3OH} n , (1), poly[[(μ2-acetato-κ2 O:O′)[μ3-3-nitro-4-(pyridin-4-yl)benzoato-κ3 O:O′:N]bis[μ3-3-nitro-4-(pyridin-4-yl)benzoato-κ4 O,O′:O′:N]dicadmium(II)] N,N-dimethylacetamide disolvate monohydrate], {[Cd2(C12H7N2O4)3(CH3CO2)]·2C4H9NO·H2O} n , (2), and catena-poly[[[diaquanickel(II)]-bis[μ2-3-nitro-4-(pyridin-4-yl)benzoato-κ2 O:N]] N,N-dimethylacetamide disolvate], {[Ni(C12H7N2O4)2(H2O)2]·2C4H9NO} n , (3), have been prepared. Single-crystal structure analysis shows that the CdII atom in MOF (1) has a distorted pentagonal bipyramidal [CdN2O5] coordination geometry. The [CdN2O5] units as 4-connected nodes are interconnected by L − ligands to form a fourfold interpenetrating three-dimensional (3D) framework with a dia topology. In MOF (2), there are two crystallographically different CdII ions showing a distorted pentagonal bipyramidal [CdNO6] and a distorted octahedral [CdN2O4] coordination geometry, respectively. Two CdII ions are connected by three carboxylate groups to form a binuclear [Cd2(COO)3] cluster. Each binuclear cluster as a 6-connected node is further linked by acetate groups and L − ligands to produce a non-interpenetrating 3D framework with a pcu topology. MOF (3) contains two crystallographically distinct NiII ions on special positions. Each NiII ion adopts an elongated octahedral [NiN2O4] geometry. Each NiII ion as a 4-connected node is linked by L − ligands to generate a two-dimensional network with an sql topology, which is further stabilized by two types of intermolecular OW—HW...O hydrogen bonds to form a 3D supramolecular framework. MOFs (1)–(3) were also characterized by powder X-ray diffraction, IR spectroscopy and thermogravimetic analysis. Furthermore, the solid-state photoluminescence of HL and MOFs (1) and (2) have been investigated. The photoluminescence of MOFs (1) and (2) are enhanced and red-shifted with respect to free HL. The gas adsorption investigation of MOF (2) indicates a good separation selectivity (71) of CO2/N2 at 273 K (i.e. the amount of CO2 adsorption is 71 times higher than N2 at the same pressure).

Fluorescent sensing properties of Cd(II)/Zn(II) metal–organic frameworks based on 3,5-di(2′,5′-dicarboxylphenyl)benozoic acid

Polyhedron ◽  
2019 ◽  
Vol 164 ◽  
pp. 90-95 ◽  
Author(s):  
Lingling Gao ◽  
Jie Zhang ◽  
Lijun Zhai ◽  
Jinfang Liang ◽  
Jinxia Liang ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Sensing Properties ◽  
Fluorescent Sensing ◽  
Metal Organic

Synthesis of multifunctional metal–organic frameworks and tuning the functionalities with pendant ligands

2020 ◽  
Vol 49 (42) ◽  
pp. 15034-15040
Author(s):  
Thazhe Kootteri Prasad ◽  
Myunghyun Paik Suh
Keyword(s):  
Chemical Sensing ◽  
Gas Adsorption ◽  
Metal Organic Frameworks ◽  
Sensing Properties ◽  
Metal Organic

Multifunctional metal–organic frameworks synthesized from ligands with various organic functional pendants show high gas adsorption, photoluminescence, and chemical sensing properties, being tuned by the pendants.

scholarly journals Recent Advances in Developing Lanthanide Metal–Organic Frameworks for Ratiometric Fluorescent Sensing

2021 ◽  
Vol 8 ◽  
Author(s):  
Tianying Sun ◽  
Yaobin Gao ◽  
Yangyang Du ◽  
Lei Zhou ◽  
Xian Chen
Keyword(s):  
Metal Organic Frameworks ◽  
Fluorescent Sensors ◽  
Lanthanide Ions ◽  
Fluorescent Sensing ◽  
Sensing Systems ◽  
Fluorescent Response ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Construction Strategies ◽  
Single Emission

Fluorescent probes have attracted special attention in developing optical sensor systems due to their reliable and rapid fluorescent response upon reaction with the analyte. Comparing to traditional fluorescent sensing systems that employ the intensity of only a single emission, ratiometric fluorescent sensors exhibit higher sensitivity and allow fast visual screening of analytes because of quantitatively analyzing analytes through the emission intensity ratio at two or more wavelengths. Lanthanide metal–organic frameworks (LnMOFs) are highly designable multifunctional luminescent materials as lanthanide ions, organic ligands, and guest metal ions or chromophores are all potential sources for luminescence. They thus have been widely employed as ratiometric fluorescent sensors. This mini review summarized the basic concept, optical features, construction strategies, and the ratiometric fluorescent sensing mechanisms of dual-emitting LnMOFs. The review ends with a discussion on the prospects, challenges, and new direction in designing LnMOF-based ratiometric fluorescent sensors.

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