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Materials
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Chemistry and Applications of Metal-Organic Frameworks
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Chemistry and Applications of Metal-Organic Frameworks

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (10 July 2023) | Viewed by 3934

Special Issue Editors

Dr. Ricardo F. Mendes

E-Mail Website
Guest Editor
Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
Interests: metal–organic framework; crystallography; solid-state electrolytes
Special Issues, Collections and Topics in MDPI journals
Dr. Flávio Figueira

E-Mail Website
Guest Editor
Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
Interests: organic and inorganic chemistry with emphasis in the preparation of functional metal-organic frameworks; MOF design and modification for their application as optical sensors and environmental remediation; metal organic frameworks; supramolecular chemistry; sensors; biosensors; optically-active MOFs
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metal–organic frameworks (MOF) represent a class of hybrid material built from metal ions and organic bridging ligands with well-defined coordination geometries and structures. The easy tunability of their pore size and the wide array of combinations within their constituents offers them a set of special characteristics such as porosity, large surface areas, intriguing framework architectures, and high chemical/mechanical stability. These features have made MOFs well known in applications such as catalysis, energy storage, drug delivery systems, nonlinear optics, sensing, and gas storage.

This Special Issue intends to present some of the most relevant progress on the design and development of MOFs and their applications. The Special Issue will significantly benefit from the contribution of original research articles and critical review articles in this scientific field.

Dr. Ricardo F. Mendes
Dr. Flávio Figueira
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metal-organic frameworks
  • nano-MOFs
  • MOF composites
  • post-synthesis modification
  • porous coordination polymer
  • porosity

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Published Papers (2 papers)

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Research

13 pages, 1594 KiB  
Article
Catalysis of a Diels–Alder Reaction between Azachalcones and Cyclopentadiene by a Recyclable Copper(II)-PEIP Metal-Organic Framework
by Eleni Hadjikyprianou, Sotiris Petrides, Andreas Kourtellaris, Anastasios J. Tasiopoulos and Savvas N. Georgiades
Materials 2023, 16(15), 5298; https://doi.org/10.3390/ma16155298 - 27 Jul 2023
Viewed by 1299
Abstract
Metal-organic frameworks (MOFs) have attracted considerable interest as emerging heterogeneous catalysts for organic transformations of synthetic utility. Herein, a Lewis-acidic MOF, {[Cu3(PEIP)2(5-NH2-mBDC)(DMF)]·7DMF}∞, denoted as Cu(ΙΙ)-PEIP, has been synthesized via a one-pot process and deployed as [...] Read more.
Metal-organic frameworks (MOFs) have attracted considerable interest as emerging heterogeneous catalysts for organic transformations of synthetic utility. Herein, a Lewis-acidic MOF, {[Cu3(PEIP)2(5-NH2-mBDC)(DMF)]·7DMF}∞, denoted as Cu(ΙΙ)-PEIP, has been synthesized via a one-pot process and deployed as an efficient heterogeneous catalyst for a Diels–Alder cycloaddition. Specifically, the [4 + 2] cycloaddition of 13 substituted azachalcone dienophiles with cyclopentadiene has been investigated. MOF-catalyzed reaction conditions were optimized, leading to the selection of water as the solvent, in the presence of 10% mol sodium dodecyl sulfate (SDS) to address substrate solubility. The Cu(II)-PEIP catalyst showed excellent activity under these green and mild conditions, exhibiting comparable or, in some cases, superior efficiency to a homogeneous catalyst often employed in Diels–Alder reactions, namely, Cu(OTf)2. The nature of the azachalcone substituent played a significant role in the reactivity of the dienophiles, with electron-withdrawing (EW) substituents enhancing conversion and electron-donating (ED) ones exhibiting the opposite effect. Coordinating substituents appeared to enhance the endo selectivity. Importantly, the Cu(II)-PEIP catalyst can be readily isolated from the reaction mixture and recycled up to four times without any significant reduction in conversion or selectivity. Full article
(This article belongs to the Special Issue Chemistry and Applications of Metal-Organic Frameworks)
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13 pages, 2794 KiB  
Article
Effective Combination of the Metal Centers in MOF-Based Materials toward Sustainable Oxidation Catalysts
by Alexandre M. Viana, Francisca Leonardes, Marta C. Corvo, Salete S. Balula and Luís Cunha-Silva
Materials 2023, 16(8), 3133; https://doi.org/10.3390/ma16083133 - 16 Apr 2023
Cited by 4 | Viewed by 2230
Abstract
A successful encapsulation of Keggin-type polyoxomolybdate (H3[PMo12O40], PMo12) into metal-organic framework (MOF) materials with an identical framework but distinct metal centers (ZIF-8 with Zn2+ and ZIF-67 with Co2+) was accomplished by a [...] Read more.
A successful encapsulation of Keggin-type polyoxomolybdate (H3[PMo12O40], PMo12) into metal-organic framework (MOF) materials with an identical framework but distinct metal centers (ZIF-8 with Zn2+ and ZIF-67 with Co2+) was accomplished by a straightforward room-temperature procedure. The presence of Zn2+ in the composite material PMo12@ZIF-8 instead of Co2+ in PMo12@ZIF-67 caused a remarkable increase in the catalytic activity that achieved a total oxidative desulfurization of a multicomponent model diesel under moderate and friendly conditions (oxidant: H2O2 and solvent: ionic liquid, IL). Interestingly, the parent ZIF-8-based composite with the Keggin-type polyoxotungstate (H3[PW12O40], PW12), PW12@ZIF-8, did not show the relevant catalytic activity. The ZIF-type supports present an appropriate framework to accommodate active polyoxometalates (POMs) into their cavities without leaching, but the nature of the metallic center from the POM and the metal present in the ZIF framework were vital for the catalytic performance of the composite materials. Full article
(This article belongs to the Special Issue Chemistry and Applications of Metal-Organic Frameworks)
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