About: A novel nickel metal-organic framework with fluorite-like structure: Gas adsorption properties and catalytic activity in Knoevenagel condensation     Goto   Sponge   NotDistinct   Permalink

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  • A new non-interpenetrating 3D metal-organic framework {[Ni-4(mu(6)-MTB)(2)(mu(2)-H2O)(4)(H2O)(4)]center dot 10DMF center dot 11-H2O}(n) (DMF = N, N'-dimethylformamide) built from nickel(II) ions as connectors and methanetetrabenzoate ligands (MTB4-) as linkers has been synthesized and characterized. The single crystal X-ray diffraction showed that complex exhibits CaF2-like fluorite structure topology and four types of 3D channels with sizes about 12.6 x 9.4 angstrom(2), 9.4 x 8.0 angstrom(2), 12.6 x 11.7 angstrom(2) and 14.9 x 14.9 angstrom(2), which are filled with guest molecules. Conditions of the activation of the compound have been studied and optimized by powder X-ray diffraction during in situ heating, thermogravimetric analysis and infrared spectroscopy. Nitrogen and carbon dioxide adsorption showed that the activated sample exhibits a BET specific surface area of 700 m(2) g(-1) and a carbon dioxide uptake of 12.36 wt% at 0 degrees C, which are the highest values reported for the compounds of the MTB4-series. The complex was tested in Knoevenagel condensation of aldehydes and active methylene compounds. Straightforward dependence of the substrate conversion on the size of used aldehyde was established. A possible mechanism of Knoevenagel condensation over a MTB4-containing a metal-organic framework was proposed.
  • A new non-interpenetrating 3D metal-organic framework {[Ni-4(mu(6)-MTB)(2)(mu(2)-H2O)(4)(H2O)(4)]center dot 10DMF center dot 11-H2O}(n) (DMF = N, N'-dimethylformamide) built from nickel(II) ions as connectors and methanetetrabenzoate ligands (MTB4-) as linkers has been synthesized and characterized. The single crystal X-ray diffraction showed that complex exhibits CaF2-like fluorite structure topology and four types of 3D channels with sizes about 12.6 x 9.4 angstrom(2), 9.4 x 8.0 angstrom(2), 12.6 x 11.7 angstrom(2) and 14.9 x 14.9 angstrom(2), which are filled with guest molecules. Conditions of the activation of the compound have been studied and optimized by powder X-ray diffraction during in situ heating, thermogravimetric analysis and infrared spectroscopy. Nitrogen and carbon dioxide adsorption showed that the activated sample exhibits a BET specific surface area of 700 m(2) g(-1) and a carbon dioxide uptake of 12.36 wt% at 0 degrees C, which are the highest values reported for the compounds of the MTB4-series. The complex was tested in Knoevenagel condensation of aldehydes and active methylene compounds. Straightforward dependence of the substrate conversion on the size of used aldehyde was established. A possible mechanism of Knoevenagel condensation over a MTB4-containing a metal-organic framework was proposed. (en)
Title
  • A novel nickel metal-organic framework with fluorite-like structure: Gas adsorption properties and catalytic activity in Knoevenagel condensation
  • A novel nickel metal-organic framework with fluorite-like structure: Gas adsorption properties and catalytic activity in Knoevenagel condensation (en)
skos:prefLabel
  • A novel nickel metal-organic framework with fluorite-like structure: Gas adsorption properties and catalytic activity in Knoevenagel condensation
  • A novel nickel metal-organic framework with fluorite-like structure: Gas adsorption properties and catalytic activity in Knoevenagel condensation (en)
skos:notation
  • RIV/61388955:_____/14:00427869!RIV15-GA0-61388955
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GBP106/12/G015)
http://linked.open...iv/cisloPeriodika
  • 9
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 1005
http://linked.open...ai/riv/idVysledku
  • RIV/61388955:_____/14:00427869
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • zeolites; ligand; temperature (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [447CACA188F6]
http://linked.open...i/riv/nazevZdroje
  • Dalton Transactions
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 43
http://linked.open...iv/tvurceVysledku
  • Čejka, Jiří
  • Opanasenko, Maksym
  • Almáši, M.
  • Zeleňák, V.
http://linked.open...ain/vavai/riv/wos
  • 000331229200039
issn
  • 1477-9226
number of pages
http://bibframe.org/vocab/doi
  • 10.1039/c3dt52698d
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