. . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "Sauer, J." . . "Li, Chengbin" . . "Aluminum siting in silicon-rich zeolite frameworks: A combined high-resolution Al-27 NMR spectroscopy and quantum mechanics/molecular mechanics study of ZSM-5" . "[A0DAC174AE3C]" . . . "38" . "46" . "409193" . . "Angewandte Chemie. International Edition in English" . . "D\u011Bde\u010Dek, Ji\u0159\u00ED" . "4"^^ . "G\u00E1bov\u00E1, Vendula" . "RIV/61388955:_____/07:00090513" . "Aluminum siting in silicon-rich zeolite frameworks: A combined high-resolution Al-27 NMR spectroscopy and quantum mechanics/molecular mechanics study of ZSM-5"@en . . "eolites are crystalline microporous aluminosilicates widely used as molecular sieves and catalysts in industrial chemical processes. Silicon-rich zeolites (Si/Al>12) such as ZSM-5 (MFI framework) have found particular attention. The catalytically active species, that is, protons, metal cations, and metal-oxo cations, compensate the negative charge of the microporous aluminosilicate frameworks [Sin-mAlmO2n]m- made of corner-sharing TO4 tetrahedra (T=Si, Al-). A typical feature of many silicon-rich zeolites is a high number of crystallographically distinguishable T sites. Since the cationic species bind to the AlO4- tetrahedra, the crystallographic position of aluminum in zeolite frameworks governs the location of the active sites, which in turn affects the catalytic activity and selectivity." . "RIV/61388955:_____/07:00090513!RIV08-AV0-61388955" . "Pozice hlin\u00EDku v zeolitick\u00E9m skeletu: ALNMR spektroskopie a kvantov\u00E1 mechanika/studie molekul\u00E1rn\u00ED mechaniky na ZSM-5"@cs . "Zeolity jsou krystalick\u00E9 mikropor\u00E9zn\u00ED materi\u00E1ly \u0161iroce pou\u017E\u00EDvan\u00E9 jako molekul\u00E1rn\u00ED s\u00EDta a katalyz\u00E1tory v pr\u016Fmyslov\u00FDch chemick\u00FDch procesech. Zejm\u00E9na k\u0159em\u00EDkem bohat\u00E9 zeolity (Si/Al>12) jako ZSM-5 (MFI skelet) p\u0159it\u00E1hly pozornost. Katalyticky aktivn\u00ED species, to jest protony, kationty kov\u016F a kov-oxid kovu kationty kompenzuj\u00ED negativn\u00ED n\u00E1boj mikropor\u00E9zn\u00EDho hlin\u00EDko-k\u0159em\u00EDkov\u00E9ho skeletu [Sin-mAlmO2n]m- kter\u00E9 jsou tvo\u0159en\u00E9 rohy sd\u00EDlej\u00EDc\u00EDmi TO4 tetrahedry (T=Si, Al-). Typick\u00FDm rysem mnoha k\u0159em\u00EDkem bohat\u00FDch zeolit\u016F je vysok\u00FD po\u010Det krystalograficky rozli\u0161iteln\u00FDch T posic\u00ED. Nebo\u0165 kationick\u00E9 species se v\u00E1\u017Eou k AlO4- tetraedr\u016Fm, krystalografick\u00E1 posice hlin\u00EDku v zeolitick\u00E9m skeletu ur\u010Duje lokalizaci aktivn\u00EDch species."@cs . . . "7286;7289" . . . . . "Aluminum siting in silicon-rich zeolite frameworks: A combined high-resolution Al-27 NMR spectroscopy and quantum mechanics/molecular mechanics study of ZSM-5"@en . . . "Pozice hlin\u00EDku v zeolitick\u00E9m skeletu: ALNMR spektroskopie a kvantov\u00E1 mechanika/studie molekul\u00E1rn\u00ED mechaniky na ZSM-5"@cs . "7"^^ . . "1433-7851" . "MQ MAS NMR; chemical-shifts; ab-initio; catalysts"@en . "Li, Chengbin" . "Aluminum siting in silicon-rich zeolite frameworks: A combined high-resolution Al-27 NMR spectroscopy and quantum mechanics/molecular mechanics study of ZSM-5" . "5"^^ . . . "Sierka, M." . . . "Wichterlov\u00E1, Blanka" . "eolites are crystalline microporous aluminosilicates widely used as molecular sieves and catalysts in industrial chemical processes. Silicon-rich zeolites (Si/Al>12) such as ZSM-5 (MFI framework) have found particular attention. The catalytically active species, that is, protons, metal cations, and metal-oxo cations, compensate the negative charge of the microporous aluminosilicate frameworks [Sin-mAlmO2n]m- made of corner-sharing TO4 tetrahedra (T=Si, Al-). A typical feature of many silicon-rich zeolites is a high number of crystallographically distinguishable T sites. Since the cationic species bind to the AlO4- tetrahedra, the crystallographic position of aluminum in zeolite frameworks governs the location of the active sites, which in turn affects the catalytic activity and selectivity."@en . "P(1ET400400413), P(GA203/06/1449), P(IAA4040308), Z(AV0Z40400503)" . "Sklen\u00E1k, \u0160t\u011Bp\u00E1n" . .