Zobrazit minimální záznam
dc.contributor.author |
Nateghi, Bahareh
|
cze |
dc.contributor.author |
Domasevitch, Kostiantyn V.
|
cze |
dc.contributor.author |
Bulánek, Roman
|
cze |
dc.contributor.author |
Janiak, Christoph
|
cze |
dc.contributor.author |
Boldog, István
|
cze |
dc.date.accessioned |
2020-03-19T12:50:29Z |
|
dc.date.available |
2020-03-19T12:50:29Z |
|
dc.date.issued |
2019 |
eng |
dc.identifier.issn |
0020-1669 |
eng |
dc.identifier.uri |
https://hdl.handle.net/10195/74904 |
|
dc.description.abstract |
A new porous coordination polymer (PCP/MOF), ZRTE-10, based on a tetrahedral 1,3,5,7-tetra(carboxyphenyl)-benzene ligand (H4L4) was synthesized using formic or acetic acids as modulators. The low symmetry (C2/c) framework, [Zr-6(mu(3)-O)(4)(mu(3)-OH )(4)(L-4)(HL4)(2)(OH)(2)(H2O)(2)], is built upon a rare 10-connected Zr-6 cluster. Two-thirds of the ligands bear one nondeprotonated carboxy group, and the framework has a complex trinodal 3,4,10-c, {4(14).6(24).8(7)}{4(3)}(2){4(5).6}, underlying net. Supercritical CO2 drying and mild degassing at 120 degrees C yielded a porous material with S-BET = 1190 m(2) g(-1). When heated up to similar to 200 degrees C, ZRTE-10 converts to another crystalline framework, ZRTE-11. The latter was identified to be identical to the expected fluorite (flu) observed previously for other tetrahedral ligands. The high symmetry (I4/m) framework is built upon 8-connected Zr-6 clusters and has a formula of [Zr-6(mu(3)-O)(4)(mu(3)-OH )(4)(L-4)(2)]. The complicated trinodal network of ZRTE-10 and the simple flu net in ZRTE-11 are topologically interrelated via the operation of the merging of two neighbor three-connected nodes to one fourconnected one. The thermally induced conversion of ZRTE-10 proceeds with expulsion of one ligand per Zr-6 node in the pores of the framework, resulting in a relatively low S-BET = 585 m(2) g(-1) for the activated H4L4@ZRTE-11. A mixed ligand approach for ZRTE-10,11 was attempted using 1,3,5-tetra(carboxyphenyl)benzene (H3L3), which is a truncated analog of H4L4 with one missing branch. The monocrystalline sample of ZRTE-10 obtained in small yields demonstrated only minor inclusion of H3L3. However, the high-yielding (similar to 80%) procedure with HCl as a modulator allows near proportional incorporation of the ligands. The formed materials are semiamorphous with powder XRDs intermediary between pure ZRTE-10 and -11. Thermal treatment of the semiamorphous materials increases their crystallinity and allows S-BET = 400-550 m(2) g(-1) surface areas to be reached for pure H4L4 and H3L3 or their mixture alike. The approach proposes a viewpoint on the H3L3 trifunctional ligand as a model of a ligand platform, suitable for bearing a large functionality on the fourth "truncated" branch. The significance of ZRTE-10 as a material for postsynthetic introduction of metal-based cluster functionality and as a model of functionality encapsulation, an alternative to the ship-in-the-bottle method, is discussed. |
eng |
dc.format |
p. 12786-12797 |
eng |
dc.language.iso |
eng |
eng |
dc.publisher |
American Chemical Society |
eng |
dc.relation.ispartof |
Inorganic Chemistry, volume 58, issue: 19 |
eng |
dc.rights |
open access (CC BY-NC-ND 4.0) |
eng |
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
dc.subject |
metal-organic frameworks |
eng |
dc.subject |
high-performance |
eng |
dc.subject |
uio-66 |
eng |
dc.subject |
design |
eng |
dc.subject |
adsorption |
eng |
dc.subject |
truncation |
eng |
dc.subject |
geometry |
eng |
dc.subject |
sorption |
eng |
dc.subject |
mofs |
eng |
dc.subject |
tool |
eng |
dc.subject |
metal-organická mřížka |
cze |
dc.subject |
uio-66 |
cze |
dc.subject |
adsorpce |
cze |
dc.subject |
geometrie |
cze |
dc.subject |
sorpce |
cze |
dc.subject |
MOFs |
cze |
dc.title |
Ligand Excess "Inverse-Defected" Zr-6 Tetrahedral Tetracarboxylate Framework and Its Thermal Transformation |
eng |
dc.title.alternative |
Přebytek ligandů v inverzně defektní Zr6 tetraedrálně tetrakarboxylové mřížce a její tepelná transfromace |
cze |
dc.type |
article |
eng |
dc.description.abstract-translated |
Nový porézní koordinační polymer (PCP/MOF), ZRTE-10, založený na tetraedrálním 1.3.5.7-tetra(karboxyfenyl)benzenovém ligandu H4L4) byl syntetizován a sledován během tepelné transformace metodou XRD. |
cze |
dc.peerreviewed |
yes |
eng |
dc.publicationstatus |
This is a postprint of an article published in Inorganic Chemistry. The final authenticated version is available online at: https://doi.org/10.1021/acs.inorgchem.9b01721 or https://pubs.acs.org/doi/10.1021/acs.inorgchem.9b01721 |
eng |
dc.identifier.doi |
10.1021/acs.inorgchem.9b01721 |
eng |
dc.relation.publisherversion |
https://pubs.acs.org/doi/10.1021/acs.inorgchem.9b01721 |
cze |
dc.identifier.wos |
000489676400039 |
eng |
dc.identifier.scopus |
2-s2.0-85072950405 |
|
dc.identifier.obd |
39883021 |
eng |
Tento záznam se objevuje v následujících kolekcích
Zobrazit minimální záznam
Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je open access (CC BY-NC-ND 4.0)
|
Vyhledávání
Procházet
-
Vše v Digitální knihovně
-
Tato kolekce
Můj účet
|