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rdf:type
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Description
| - 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)
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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)
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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)
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skos:notation
| - RIV/61388955:_____/14:00427869!RIV15-GA0-61388955
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/14:00427869
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - zeolites; ligand; temperature (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Čejka, Jiří
- Opanasenko, Maksym
- Almáši, M.
- Zeleňák, V.
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
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