Syntheses, Crystal Structures and Luminescent Properties of Two Isostructural Fluorinated Metal–organic Frameworks Based on Mixed 2,3,5,6-tetrafluoro-1,4-bis(imidazole-1-yl-methyl)Benzene and Oxalate Ligands

Two isostructural fluorinated metal-organic frameworks [M(Fbix)(ox)]n (where M = Zn or Mn, Fbix = 2,3,5,6-tetrafluoro-1,4-bis(imidazole-1-yl-methyl)benzene, ox = oxalate) have been synthesised from Fbix and oxamide under hydrothermal conditions, where oxalate is generated by the in situ hydrolysation of oxamide. The complexes are isostructural and display similar two-dimensional undulating sql nets formed by pillaring the one-dimensional [M(ox)]n chains through Fbix linkers. Their solid-state fluorescence spectra indicate a ligand-based emission for both complexes.

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Two isostructural fluorinated metal-organic frameworks with rare rod-packing architecture: syntheses, structures and luminescent properties

Zeitschrift für Naturforschung B ◽

10.1515/znb-2016-0191 ◽

2017 ◽

Vol 72 (2) ◽

pp. 107-113 ◽

Cited By ~ 1

Author(s):

Sheng-Chun Chen ◽

Feng Tian ◽

Ming-Yang He ◽

Qun Chen

Keyword(s):

Fluorescence Spectra ◽

Metal Organic Frameworks ◽

Luminescent Properties ◽

X Ray Diffraction ◽

Hydrothermal Conditions ◽

X Ray ◽

Secondary Building Units ◽

Metal Organic ◽

Solid State Fluorescence ◽

Methyl Benzene

AbstractTwo isostructural fluorinated metal-organic frameworks, formulated as [M2(Fbix)(1,4-NDC)2]n (M=Cd for 1 and Mn for 2), were synthesized by employing 1,4-naphthalenedicarboxylic acid (1,4-H2NDC) and the flexible fluorinated ligand 2,3,5,6-tetrafluoro-1,4-bis(imidazole-1-yl-methyl)benzene (Fbix) under hydrothermal conditions. Their structures were determined by single-crystal X-ray diffraction and further characterized by infrared spectroscopy, powder X-ray diffraction, and thermogravimetric analyses. Structure analyses have revealed that compounds 1 and 2 show an unusual hex net based on infinite rod-shaped secondary building units. The solid-state fluorescence spectra of 1 and 2 were measured and indicate a ligand-based emission for both complexes.

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Two new NiII and ZnII metal–organic frameworks of glutarate and 1,4-bis[(2-methyl-1H-imidazol-1-yl)methyl]benzene ligands: syntheses, structures and luminescence sensing properties

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229620000042 ◽

2020 ◽

Vol 76 (2) ◽

pp. 148-158

Author(s):

Fang-Hua Zhao ◽

Zhong-Lin Li ◽

Shu-Fang Zhang ◽

Jian-Hui Han ◽

Mei Zhang ◽

...

Keyword(s):

Metal Organic Frameworks ◽

Three Dimensional ◽

Two Dimensional ◽

X Ray Diffraction ◽

One Dimensional ◽

X Ray ◽

Vis Spectroscopy ◽

Metal Organic ◽

3D Framework ◽

Methyl Benzene

Two new metal–organic frameworks (MOFs), namely, three-dimensional poly[diaquabis{μ2-1,4-bis[(2-methyl-1H-imidazol-1-yl)methyl]benzene}bis(μ2-glutarato)dinickel(II)] monohydrate], {[Ni2(C5H6O4)2(C16H18N4)2(H2O)2]·H2O} n or {[Ni2(Glu)2(1,4-mbix)2(H2O)2]·H2O} n , (I), and two-dimensional poly[[{μ2-1,4-bis[(2-methyl-1H-imidazol-1-yl)methyl]benzene}(μ2-glutarato)zinc(II)] tetrahydrate], {[Zn(C5H6O4)(C16H18N4)]·4H2O} n or {[Zn(Glu)(1,4-mbix)]·4H2O} n (II), have been synthesized hydrothermally using glutarate (Glu2−) mixed with 1,4-bis[(2-methyl-1H-imidazol-1-yl)methyl]benzene (1,4-mbix), and characterized by single-crystal X-ray diffraction, IR and UV–Vis spectroscopy, powder X-ray diffraction, and thermogravimetric and photoluminescence analyses. NiII MOF (I) shows a 4-connected 3D framework with point symbol 66, but is not a typical dia network. ZnII MOF (II) displays a two-dimensional 44-sql network with one-dimensional water chains penetrating the grids along the c direction. The solid-state photoluminescence analysis of (II) was performed at room temperature and the MOF exhibits highly selective sensing toward Fe3+ and Cr2O7 2− ions in aqueous solution.

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Novel tetrazole-based metal–organic frameworks constructed from in situ synthesize bifunctional ligands: syntheses, structure and luminescent properties

CrystEngComm ◽

10.1039/c1ce05829k ◽

2012 ◽

Vol 14 (3) ◽

pp. 890-898 ◽

Cited By ~ 35

Author(s):

Lin Sun ◽

Li Ma ◽

Jin-Biao Cai ◽

Li Liang ◽

Hong Deng

Keyword(s):

Metal Organic Frameworks ◽

Luminescent Properties ◽

Bifunctional Ligands ◽

Metal Organic

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Controllable assembly of a three-dimensional metal–organic supramolecular framework displaying hydrogen-bonding and π–π stacking interactions

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229614014247 ◽

2014 ◽

Vol 70 (7) ◽

pp. 722-725 ◽

Cited By ~ 3

Author(s):

Hua Cai ◽

Yan-Ling Xiao ◽

Ying Guo ◽

Jian-Gang Li

Keyword(s):

Hydrogen Bonding ◽

Three Dimensional ◽

Solvothermal Reaction ◽

Stacking Interactions ◽

Hydrothermal Conditions ◽

Structural Units ◽

One Dimensional ◽

Π Stacking ◽

Metal Organic ◽

The One

The complex poly[[aqua(μ2-phthalato-κ2O1:O2){μ3-2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetato-κ4N2,N3:O:O′}{μ2-2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetato-κ3N2,N3:O}dizinc(II)] dihydrate], {[Zn2(C10H8N3O2)2(C8H4O4)(H2O)]·2H2O}n, has been prepared by solvothermal reaction of 2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetonitrile (PPAN) with zinc(II). Under hydrothermal conditions, PPAN is hydrolyzed to 2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetate (PPAA−). The structure determination reveals that the complex is a one-dimensional double chain containing cationic [Zn4(PPAA)4]4+structural units, which are further extended by bridging phthalate ligands. The one-dimensional chains are extended into a three-dimensional supramolecular architectureviahydrogen-bonding and π–π stacking interactions.

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Fiber-Based Gas Filter Assembled via In Situ Synthesis of ZIF-8 Metal Organic Frameworks for an Optimal Adsorption of SO2: Experimental and Theoretical Approaches

ACS Applied Materials & Interfaces ◽

10.1021/acsami.0c19957 ◽

2021 ◽

Author(s):

Jinwook Lee ◽

Kyeongeun Lee ◽

Jooyoun Kim

Keyword(s):

Metal Organic Frameworks ◽

In Situ Synthesis ◽

Theoretical Approaches ◽

Metal Organic

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In situ X‐ray Diffraction Investigation of the Crystallisation of Perfluorinated Ce(IV)‐based Metal‐Organic Frameworks with UiO‐66 and MIL‐140 architectures

Chemistry - A European Journal ◽

10.1002/chem.202005085 ◽

2021 ◽

Author(s):

Stephen J. I. Shearan ◽

Jannick Jacobsen ◽

Ferdinando Costantino ◽

Roberto D’Amato ◽

Dmitri Novikov ◽

...

Keyword(s):

Metal Organic Frameworks ◽

X Ray Diffraction ◽

X Ray ◽

Metal Organic

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In-situ development of metal organic frameworks assisted ZnMgAl layered triple hydroxide 2D/2D hybrid as an efficient photocatalyst for organic dye degradation

Chemosphere ◽

10.1016/j.chemosphere.2020.128616 ◽

2020 ◽

pp. 128616 ◽

Cited By ~ 1

Author(s):

K. Bhuvaneswari ◽

G. Palanisamy ◽

T. Pazhanivel ◽

T. Maiyalagan ◽

P. Shanmugam ◽

...

Keyword(s):

Dye Degradation ◽

Metal Organic Frameworks ◽

Organic Dye ◽

Metal Organic ◽

Organic Dye Degradation

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Degradation Mechanism of Porous Metal-Organic Frameworks by In Situ Atomic Force Microscopy

Nanomaterials ◽

10.3390/nano11030722 ◽

2021 ◽

Vol 11 (3) ◽

pp. 722

Author(s):

Ioanna Christodoulou ◽

Tom Bourguignon ◽

Xue Li ◽

Gilles Patriarche ◽

Christian Serre ◽

...

Keyword(s):

Drug Delivery ◽

Degradation Mechanism ◽

Metal Organic Frameworks ◽

Porous Metal ◽

Force Microscopy ◽

Atomic Force ◽

Metal Organic ◽

The Media ◽

Ph Conditions

In recent years, Metal-Organic Frameworks (MOFs) have attracted a growing interest for biomedical applications. The design of MOFs should take into consideration the subtle balance between stability and biodegradability. However, only few studies have focused on the MOFs’ stability in physiological media and their degradation mechanism. Here, we investigate the degradation of mesoporous iron (III) carboxylate MOFs, which are among the most employed MOFs for drug delivery, by a set of complementary methods. In situ AFM allowed monitoring with nanoscale resolution the morphological, dimensional, and mechanical properties of a series of MOFs in phosphate buffer saline and in real time. Depending on the synthetic route, the external surface presented either well-defined crystalline planes or initial defects, which influenced the degradation mechanism of the particles. Moreover, MOF stability was investigated under different pH conditions, from acidic to neutral. Interestingly, despite pronounced erosion, especially at neutral pH, the dimensions of the crystals were unchanged. It was revealed that the external surfaces of MOF crystals rapidly respond to in situ changes of the composition of the media they are in contact with. These observations are of a crucial importance for the design of nanosized MOFs for drug delivery applications.

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Two dimethylphenyl imidazole dicarboxylate-based lanthanide metal–organic frameworks for luminescence sensing of benzaldehyde

Dalton Transactions ◽

10.1039/c4dt03326d ◽

2015 ◽

Vol 44 (9) ◽

pp. 4362-4369 ◽

Cited By ~ 75

Author(s):

Bingbing Shi ◽

Yuanhao Zhong ◽

Lili Guo ◽

Gang Li

Keyword(s):

Dicarboxylic Acid ◽

Metal Organic Frameworks ◽

Hydrothermal Conditions ◽

Metal Organic ◽

Lanthanide Metal ◽

Imidazole Dicarboxylate

Two novel dimethylphenyl imidazole dicarboxylate-based lanthanide(iii)-organic frameworks, [Ln(H2DMPhIDC)3(H3DMPhIDC)]n (Ln = Eu (1), Tb (2); H3DMPhIDC = 2-(3,4-dimethylphenyl)-1H-imidazole-4,5-dicarboxylic acid) have been synthesized under hydrothermal conditions.

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