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Sökning: onr:"swepub:oai:research.chalmers.se:8f54dfe6-94f8-4592-8d3f-e47aa38743c5" > Metal-Organic Frame...

Metal-Organic Frameworks with Hexakis(4-carboxyphenyl)benzene: Extensions to Reticular Chemistry and Introducing Foldable Nets

Amombo Noa, Francoise Mystere, 1988 (författare)
Chalmers University of Technology,Chalmers tekniska högskola
Grape, Erik Svensson (författare)
Stockholm University,Stockholms universitet
Brülls, Steffen, 1991 (författare)
Chalmers University of Technology,Chalmers tekniska högskola
visa fler...
Cheung, Ocean (författare)
Uppsala University,Uppsala universitet,Nanoteknologi och funktionella material
Malmberg, Per, 1974 (författare)
Chalmers University of Technology,Chalmers tekniska högskola,Chalmers Univ Technol, Dept Chem & Chem Engn, Chem & Biochem, SE-41296 Gothenburg, Sweden
Inge, A. Ken (författare)
Stockholm University,Stockholms universitet,Stockholm Univ, Dept Mat & Environm Chem, SE-10691 Stockholm, Sweden,Institutionen för material- och miljökemi (MMK)
McKenzie, Christine J. (författare)
University of Southern Denmark, Denmark,Univ Southern Denmark, Dept Phys Chem & Pharm, DK-5230 Odense M, Denmark
Mårtensson, Jerker, 1965 (författare)
Chalmers University of Technology,Chalmers tekniska högskola,Chalmers Univ Technol, Dept Chem & Chem Engn, Chem & Biochem, SE-41296 Gothenburg, Sweden
Öhrström, Lars, 1963 (författare)
Chalmers University of Technology,Chalmers tekniska högskola,Chalmers Univ Technol, Dept Chem & Chem Engn, Chem & Biochem, SE-41296 Gothenburg, Sweden
Svensson Grape, Erik (författare)
Stockholms universitet,Institutionen för material- och miljökemi (MMK)
Amombo Noa, Francoise M. (författare)
Chalmers Univ Technol, Dept Chem & Chem Engn, Chem & Biochem, SE-41296 Gothenburg, Sweden
Brülls, Steffen Marc (författare)
Chalmers Univ Technol, Dept Chem & Chem Engn, Chem & Biochem, SE-41296 Gothenburg, Sweden
Noa, Francoise M. Amombo (författare)
visa färre...
 (creator_code:org_t)
2020
2020
Engelska.
Ingår i: Journal of the American Chemical Society. - 1520-5126 .- 0002-7863. ; 142:20, s. 9471-9481
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Nine metal-organic frameworks have been prepared with the hexagon-shaped linker 1,2,3,4,5,6-hexakis(4-carboxyphenyl)-benzene (H(6)cpb) by solvothermal reactions in dimethylformamide (dmf) or dimethylacetamide (dmac) with acetic acid or formic acid as modulators: [Bi-2(cpb)(acetato)(2)(dmf)(2)]center dot 2dmf CTH-6 forms a rtl-net; 2(H2NMe2)[Cu-2(cpb)] CTH-7 forms a kgd-net; [Fe-4(cpb)-(acetato)(2)(dmf)(4)] CTH-8 and [Co-4(cpb)(acetato)(2)(dmf)(4)] CTH-9 are isostructural and form yav-nets; 2(HNEt3)[Fe-2(cpb)] CTH-10 and the two polymorphs of 2(H2NMe2)[Zn-2(cpb)]center dot 1.5dmac, Zn-MOF-888 and CTH-11, show kgd-nets; [Cu-2(cpb)-(acetato)(2)(dmf)(2)]center dot 2dmf, CTH-12, forms a mixed coordination and hydrogen-bonded sql-net; and 2(H2NMe2)[Zn-2(cpb)] CTH-13, a similarly mixed yav-net. Surface area values (Brunauer-Emmett-Teller, BET) range from 34 m(2) g(-1) for CTH-12 to 303 m(2) g(-1) for CTH-9 for samples activated at 120 degrees C in dynamic vacuum. All compounds show normal (10-fold higher) molar CO2 versus N-2 uptake at 298 K, except the 19-fold CO2 uptake for CTH-12 containing Cu(II) dinuclear paddle-wheels. We also show how perfect hexagons and triangles can combine to a new 3D topology laf, a model of which gave us the idea of foldable network topologies, as the laf-net can fold into a 2D form while retaining the local geometry around each vertex. Other foldable nets identified are cds, cds-a, ths, sqc163, clh, jem, and tfc covering the basic polygons and their combinations. The impact of this concept on "breathing" MOFs is discussed. I-2 sorption, both from gas phase and from MeOH solution, into CTH-7 were studied by time of flight secondary ion mass spectrometry (ToF-SIMS) on dried crystals. I-2 was shown to have penetrated the crystals, as layers were consecutively peeled off by the ion beam. We suggest ToF-SIMS to be a method for studying sorption depth profiles of MOFs.

Ämnesord

NATURVETENSKAP  -- Kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

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