A fluorescent zirconium organic framework displaying rapid and nanomolar level detection of Hg(II) and nitroantibiotics

2022 ◽  
Author(s):  
Subhrajyoti Ghosh ◽  
Felix Steinke ◽  
Abhijeet Rana ◽  
Shyam Biswas
Keyword(s):  
Acetic Acid ◽  
Dicarboxylic Acid ◽  
Metal Organic Framework ◽  
Solvothermal Reaction ◽  
Metal Organic ◽  
Organic Framework

The solvothermal reaction of ZrCl4 with benzo[1,2-b:4,5-b’]dithiophene-2,6-dicarboxylic acid linker molecule in presence of trifluoro acetic acid modulator afforded the UiO-66 type of metal organic framework (MOF) (IITG-5, IITG = Indian...

A three-dimensional manganese(II) metal–organic framework based on 5-methoxybenzene-1,3-dicarboxylic acid and exhibiting a pts net

2013 ◽  
Vol 69 (5) ◽  
pp. 483-485 ◽  
Author(s):  
Xiao-Hui Huang
Keyword(s):  
Dicarboxylic Acid ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Distorted Octahedral Geometry ◽  
Solvothermal Reaction ◽  
Topological Network ◽  
Distorted Octahedral ◽  
Anionic Ligands ◽  
Metal Organic ◽  
Organic Framework

The solvothermal reaction of MnCl2·H2O and 5-methoxybenzene-1,3-dicarboxylic acid (MeO-m-H2BDC) led to a three-dimensional MnIImetal–organic framework, namely poly[(dimethylformamide-κO)(μ4-5-methoxybenzene-1,3-dicarboxylato-κ4O1:O1′:O3,O3′:O3)manganese(II)], [Mn(C9H6O5)(C3H7NO)]nor [Mn(MeO-m-BDC)(DMF)]n(DMF is dimethylformamide). The MnIIatom is six-coordinated and exhibits a distorted octahedral geometry formed by five carboxylate O atoms from four different MeO-m-BDC2−anionic ligands and by one DMF O atom. The three-dimensional framework of (I) formed by the bridging MeO-m-BDC2−ligands and the MnIIatoms exhibits aptstopological network when MeO-m-BDC2−and MnIIare viewed as four-connected nodes.

Multi-responsive luminescent sensor based on a stable Eu(III) metal-organic framework for sensing Fe3+, MnO4−, and Cr2O72− in aqueous solution

CrystEngComm ◽  
2022 ◽  
Author(s):  
Qi-Qi He ◽  
Shu-Li Yao ◽  
Teng-Fei Zheng ◽  
Hui Xu ◽  
Sui-Jun Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dicarboxylic Acid ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Solvothermal Reaction ◽  
Luminescent Sensor ◽  
Metal Organic ◽  
Organic Framework

A new water-stable three-dimensional (3D) Eu(III) metal-organic framework with the formula of {[Eu3(BTDC)4(HCOO)(H2O)2]•solvents}n (JXUST-9) was successfully obtained by the solvothermal reaction of 2,1,3-benzothiadiazole-4,7-dicarboxylic acid (H2BTDC) and Eu(NO3)3•6H2O. The PXRD patterns...

scholarly journals Water Photo-Electrooxidation Using Mats of TiO2 Nanorods, Surface Sensitized by a Metal–Organic Framework of Nickel and 1,2-Benzene Dicarboxylic Acid

Hydrogen ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 58-75
Author(s):  
Sheng-Mu You ◽  
Waleed M. A. El Rouby ◽  
Loïc Assaud ◽  
Ruey-An Doong ◽  
Pierre Millet
Keyword(s):  
Dicarboxylic Acid ◽  
Electrochemical Impedance ◽  
Metal Organic Framework ◽  
Linear Sweep Voltammetry ◽  
Tio2 Nanorods ◽  
Tem Analysis ◽  
Vis Spectroscopy ◽  
Metal Organic ◽  
Benzene Dicarboxylic Acid ◽  
Organic Framework

Photoanodes comprising a transparent glass substrate coated with a thin conductive film of fluorine-doped tin oxide (FTO) and a thin layer of a photoactive phase have been fabricated and tested with regard to the photo-electro-oxidation of water into molecular oxygen. The photoactive layer was made of a mat of TiO2 nanorods (TDNRs) of micrometric thickness. Individual nanorods were successfully photosensitized with nanoparticles of a metal–organic framework (MOF) of nickel and 1,2-benzene dicarboxylic acid (BDCA). Detailed microstructural information was obtained from SEM and TEM analysis. The chemical composition of the active layer was determined by XRD, XPS and FTIR analysis. Optical properties were determined by UV–Vis spectroscopy. The water photooxidation activity was evaluated by linear sweep voltammetry and the robustness was assessed by chrono-amperometry. The OER (oxygen evolution reaction) photo-activity of these photoelectrodes was found to be directly related to the amount of MOF deposited on the TiO2 nanorods, and was therefore maximized by adjusting the MOF content. The microscopic reaction mechanism which controls the photoactivity of these photoelectrodes was analyzed by photo-electrochemical impedance spectroscopy. Microscopic rate parameters are reported. These results contribute to the development and characterization of MOF-sensitized OER photoanodes.

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...

scholarly journals The Elusive Nitro-Functionalised Member of the IRMOF-9 Family

2019 ◽  
Vol 72 (10) ◽  
pp. 811 ◽  
Author(s):  
Luke Conte ◽  
Tian-You Zhou ◽  
Omid T. Qazvini ◽  
Lujia Liu ◽  
David R. Turner ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Surface Area ◽  
Metal Organic Framework ◽  
Bet Surface Area ◽  
Solvothermal Reaction ◽  
X Ray Diffraction ◽  
Secondary Building Unit ◽  
Initial Product ◽  
Building Unit ◽  
Metal Organic

The solvothermal reaction of 2-nitro-[1,1′‐biphenyl]‐4,4′‐dicarboxylic acid (H2bpdcNO2) with Zn(NO3)2·6H2O in DMF solvent does not give a functionalised variant of IRMOF-9. Single-crystal X-ray diffraction analysis shows the major initial product of this reaction, WUF-21 (WUF=Wollongong University Framework), is a porous interpenetrated diamondoid metal–organic framework (MOF) with a secondary building unit that ‘doubly straps’ eight bridging bpdcNO2 ligands in a distorted tetrahedral shape around an unusual pentazinc core. A second porous MOF phase (WUF-23) containing a large and novel dodecazinc secondary building unit forms in the same reaction and eventually predominates in solutions containing formate anion, which arises from the hydrolysis of DMF. Doping the starting ligand with [1,1′‐biphenyl]‐4,4′‐dicarboxylic acid (H2bpdc) provides a facile way to grow nitro-functionalised IRMOF-9, hereafter denoted as WUF-22, where the dopant is carried through into the product. Activated WUF-22 is a microporous solid with an apparent Brunauer–Emmett–Teller (BET) surface area of 2497m2g−1, which matches well with geometric surface area calculations. The CO2 adsorption properties of WUF-22 are reported.

scholarly journals Synthesis, structure, and fluorescence properties of a calcium-based metal–organic framework

RSC Advances ◽  
2018 ◽  
Vol 8 (55) ◽  
pp. 31588-31593 ◽  
Author(s):  
Daichi Kojima ◽  
Tomoe Sanada ◽  
Noriyuki Wada ◽  
Kazuo Kojima
Keyword(s):  
Metal Organic Framework ◽  
Fluorescence Properties ◽  
Solvothermal Reaction ◽  
Distilled Water ◽  
Metal Organic ◽  
Organic Framework

The solvothermal reaction of a mixture of calcium acetylacetonate and 1,4-naphthalenedicarboxylic acid (H2NDC) in a solution containing ethanol and distilled water gave rise to a metal–organic framework (MOF), {(H3O+)2[Ca(NDC)(C2H5O)(OH)]}4·1.1H2O.

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.

scholarly journals Metal–organic frameworks constructed from crown ether-based 1,4-benzenedicarboxylic acid derivatives

2016 ◽  
Vol 45 (7) ◽  
pp. 3063-3069 ◽  
Author(s):  
Teng-Hao Chen ◽  
Andreas Schneemann ◽  
Roland A. Fischer ◽  
Seth M. Cohen
Keyword(s):  
Crown Ether ◽  
Dicarboxylic Acid ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Thiacrown Ether ◽  
Benzenedicarboxylic Acid ◽  
Metal Organic ◽  
Benzene Dicarboxylic Acid ◽  
Organic Framework

A series of crown ether- and thiacrown ether-derivatized benzene dicarboxylic acid (H2bdc) ligands has been synthesized and incorporated into the prototypical isoreticular metal–organic framework (IRMOF) and UiO-66 materials.

Characterization and gas adsorption of a novel three-dimensional metal–organic framework (MOF) generated from a new polydentate fluorene-bridged ligand

2018 ◽  
Vol 74 (2) ◽  
pp. 212-217 ◽  
Author(s):  
Shu-Ying Han ◽  
Xue Niu ◽  
Jia Wang ◽  
Guo-Xia Jin ◽  
Ai Liu ◽  
...  
Keyword(s):  
Gas Adsorption ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Solvothermal Reaction ◽  
Two Dimensional ◽  
Polydentate Ligand ◽  
Dimensional Network ◽  
Metal Organic ◽  
Organic Framework

A polydentate ligand bridged by a fluorene group, namely 9,9-bis(2-hydroxyethyl)-2,7-bis(pyridin-4-yl)fluorene (L), has been prepared under solvothermal conditions in acetonitrile. Crystals of the three-dimensional metal–organic framework (MOF) poly[[[μ3-9,9-bis(2-hydroxyethyl)-2,7-bis(pyridin-4-yl)fluorene-κ3 N:N′:O]bis(methanol-κO)(μ-sulfato-κ2 O:O′)nickel(II)] methanol disolvate], {[Ni(SO4)(C27H24N2O2)(CH3OH)]·2CH3OH} n , (I), were obtained by the solvothermal reaction of L and NiSO4 in methanol. The ligand L forms a two-dimensional network in the crystallographic bc plane via two groups of O—H...N hydrogen bonds and neighbouring two-dimensional planes are completely parallel and stack to form a three-dimensional structure. In (I), the NiII ions are linked by sulfate ions through Ni—O bonds to form inorganic chains and these Ni-containing chains are linked into a three-dimensional framework via Ni—O and Ni—N bonds involving the polydentate ligand L. With one of the hydroxy groups of L coordinating to the NiII atom, the torsion angle of the hydroxyethyl group changes from that of the uncoordinated molecule. In addition, the adsorption properties of (I) with carbon dioxide were investigated.

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