Metal-organic frameworks based upon non-zeotype 4-connected topology

To explore the influence of different aromatic polycarboxylates on the self-assembly and properties of d10 metal coordination frameworks, six coordination compounds containing a flexible bis(2-methylbenzimidazole) (pbmb) ligand, formulated as [Ag2(pbmb)(2,6-napdc)]n (1), {[Zn(pbmb)(tbta)]·H2O}n (2), {[Cd(pbmb)(tbta)]·H2O}n (3), [Zn2(pbmb)(btec)(H2O)]n (4), {[Zn2(OH)(pbmb)(bpdc)1.5]·H2O}n (5), and [Cd(pbmb)(3-npa)(H2O)]n (6), have been synthesized under hydrothermal conditions and characterized by physicochemical and spectroscopic methods as well as single-crystal X-ray diffraction analysis (2,6-H2napdc = 2,6-naphthalenedicarboxylic acid, H2tbta = tetrabromoterephthalic acid, H4btec = 1,2,4,5-benzenetetracarboxylic acid, H2bpdc = biphenyl-4,4′-dicarboxylic acid and H23-npa = 3-nitrophthalic acid). Complex 1 possesses an 8-connected 3D coordination framework with sqc3 topology based on rare tetranuclear Ag(I)-cluster secondary building units (SBUs). 2 and 3 possess 2D (4,4) grid structures. 4 shows a novel (3,4,5)-connected 2D network with the Schlafli symbol of {3·4·5}{3·42·52·6}{3·43·53·6·72}. 5 features a uninodal (4,4)-connected net containing binuclear {Zn2(OH)} SBUs and a 2-fold interpenetrating (3,6)-connected supramolecular framework with {42·6}{44·610·8}-3,6T24 topology that is formed via hydrogen bond interactions. Complex 6 is a 1D double-chain structure, which is finally extended to a 3D (4,5,5)-connected supramolecular network via hydrogen bonding interactions. Complexes 1–6 indicate high thermal stabilities and different photoluminescence behavior in the solid state. Moreover, all of these polymer materials manifest excellent photocatalytic activities for the degradation of methyl orange in the photo-Fenton-like process after 120 min (1: 99%, 2: 66%, 3: 91%, 4: 83%, 5: 91% and 6: 93%, respectively).

A series of d10 metal coordination polymers based on a flexible bis(2-methylbenzimidazole) ligand and different carboxylates: synthesis, structures, photoluminescence and catalytic properties

Pillar-layered metal–organic frameworks (MOFs) are among the most interesting research areas in crystalline materials. Due to the great number of reports related to pillar-layered MOFs, investigating their structural diversity, properties and applicability as multi-donor porous frameworks is of great interest. Modifying pillar moieties as a third building block of pillar-layered MOFs, together with metal nodes and oxygen donor linkers, can enhance control of the structure assembly, leading to specific properties of the obtained structures. Although the past decade has witnessed remarkable advances in this research area, pillar-layered MOFs have not been reviewed as an independent subject to date. Therefore, a review summarizing their performance is greatly needed. This review covers issues related to pillar-layered MOFs, including their structural properties, synthesis, stability, diversity of linkers, and improved applicability. Finally, pillar linkers are studied separately according to their diverse donor atoms and functional groups.

Pillar-layered MOFs: Functionality, Interpenetration, Flexibility and Applications

Thirteen new CuII coordination polymers, namely, [Cu(3-dppa)(1,3,5-HBTC)] (1), [Cu(3-dpha)(1,3,5-HBTC)(H2O)]·H2O (2), [Cu3(3-dpsea)(1,3,5-BTC)2(H2O)5]·4H2O (3), [Cu(3-dpba)(1,2-BDC)]·H2O (4), [Cu(3-dpha)(1,2-BDC)] (5), [Cu(3-dpsea)(1,2-BDC)]·H2O (6), [Cu2(3-dpyp)(1,3-BDC)2(H2O)4]·3H2O (7), [Cu(3-dppa)(1,3-BDC)(H2O)]·2H2O (8), [Cu(3-dppia)(1,3-BDC)(H2O)2]·2H2O (9), [Cu2(3-dpsea)2(1,3-BDC)2(H2O)2]·7H2O (10), [Cu(3-dpba)(1,4-NDC)]·3H2O (11), [Cu(3-dpyh)(1,4-NDC)(H2O)]·3H2O (12), [Cu(3-dpyh)0.5(1,4-NDC)]·H2O (13), have been purposefully synthesized under hydrothermal conditions [3-dppa = N,N′-di(3-pyridyl)propanediamide, 3-dpba = N,N′-di(3-pyridyl)butanediamide, 3-dpha = N,N′-di(3-pyridyl)hexanedioicdiamide, 3-dppia = N,N′-di(3-pyridyl)pimelicdiamide, 3-dpsea = N,N′-di(3-pyridyl)sebacicdiamide, 3-dpyp = N,N′-di(3-pyridinecarboxamide)-1,3-propane, 3-dpyh = N,N′-di(3-pyridinecarboxamide)-1,6-hexane, 1,3,5-H3BTC = 1,3,5-benzenetricarboxylic acid, 1,2-H2BDC = 1,2-benzenedicarboxylic acid, 1,3-H2BDC = 1,3-benzened...

Structural Diversities and Fluorescent and Photocatalytic Properties of a Series of CuII Coordination Polymers Constructed from Flexible Bis-pyridyl-bis-amide Ligands with Different Spacer Lengths and Different Aromatic Carboxylates

Six coordination polymers of Zn(II) ions and three organic linkers namely, [Zn(μ4-tdc)(μ-bmeib)0.5]n (1), [Zn(μ4-tdc)(μ-betib)0.5]n (2), [Zn(μ4-tdc)(μ-bisopib)0.5]n (3), [Zn(μ4-tdc)(μ-pbmeix)0.5]n (4), [Zn(μ4-tdc)(μ-pbetix)0.5]n (5), [Zn(μ4-tdc)(μ-pbisopix)0.5]n (6), bisopib, pbetix, and pbisopix, where H2tdc = thiophene-2,5-dicarboxylic acid, bmeib = 1,4-bis(2-methyl-1H-imidazol-1-yl)butane, betib = 1,4-bis(2-ethyl-1H-imidazol-1-yl)butane, bisopib = 1,4-bis(2-isopropyl-1H-imidazol-1-yl)butane, pbmeix = 1,4-bis((2-methyl-1H-imidazol-1-yl)methyl)benzene, pbetix = 1,4-bis((2-ethyl-1H-imidazol-1-yl)methyl)benzene, pbisopix = 1,4-bis((2-isopropyl-1H-imidazol-1-yl)methyl)benzene, have been synthesized and structurally characterized by elemental analysis, IR spectra, NMR spectra and single-crystal and powder X-ray diffractions. Compounds 1–6 are isostructural and display a 3D cubic structure with 2-fold interpenetrated nets. Two crystallographically independent Zn(II) ions are bridged by four different thiopehe...

A Series of Zinc(II) 3D → 3D Interpenetrated Coordination Polymers Based On Thiophene-2,5-dicarboxylate and Bis(Imidazole) Derivative Linkers

To systematically explore the influence of aromatic polycarboxylate coligands on building high-dimensional Cd(II)-bmb (1,4-bis(2-methylbenzimidazol-1-ylmethyl) benzene) coordination polymers, we synthesized six coordination polymers, namely {[Cd(bmb)(o-phda)]·H2O}n (1), [Cd(bmb)0.5(m-phda)]n (2), [Cd(bmb)(p-phda)]n (3), [Cd(bmb)0.5(oba)]n (4), [Cd(bmb)(bpdc)]n (5), [Cd2(bmb)(bta)(mta)0.5]n (6), (H2phda = phenylenediacetic acid, H2oba =4,4′-oxybis(benzoic acid), H2bpdc = biphenyl-4,4′-dicarboxylic acid, H3bta =1,2,4-benzenetricarboxylic acid, and H2mta = 2-(methoxycabonyl)terephthalic acid) by varying aromatic polycarboxylate coligands. Structural analyses reveal that polymers 1–6 display diverse 3D frameworks and topologies, in which all of the N-donor ligands bmb exhibit trans-conformation but with different Ndonor···N–Csp3···Csp3 torsion angles. Polymer 1 shows a 3-fold interpenetrating dia array with a 4-connected 66 topology. Polymer 2 features a (3,4)-connected pillar-layered structure with (63)(65·8...

Three-Dimensional Cd(II) Coordination Polymers Based on Semirigid Bis(Methylbenzimidazole) and Aromatic Polycarboxylates: Syntheses, Topological Structures and Photoluminescent Properties

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Yinping Wang

Author Tools

Chat about Author

Papers

Three-Dimensional Cd(II) Coordination Polymers Based on Semirigid Bis(Methylbenzimidazole) and Aromatic Polycarboxylates: Syntheses, Topological Structures and Photoluminescent Properties