(C3H6O2)2, (Si6O12)2, a new silica sodalite synthesized, using 1,3-dioxolane as template

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • Gianpietro van de Goor
  • Peter Behrens
  • Jürgen Felsche

Externe Organisationen

  • Universität Konstanz
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)493-500
Seitenumfang8
FachzeitschriftMicroporous Materials
Jahrgang2
Ausgabenummer6
PublikationsstatusVeröffentlicht - Juli 1994
Extern publiziertJa

Abstract

A clathrasil with SOD structure has been obtained using 1,3-dioxolane as a template. The synthesis was achieved under hydrothermal conditions at temperatures between 423 and 433 K in the SiO2Na2OC3H6O2H2O system. The choice of the template was guided by stereochemical comparisons with the templates known for silica sodalite synthesis, ethylene glycol and 1,3,5-trioxane. The powder X-ray diffraction (XRD) measurement of dioxolane silica sodalite (C3H6O2)2(Si6O12)2 showed the typical pattern of silica sodalites with sharp, discrete reflections indicating high crystallinity. Indexing and refinement of the diffraction pattern gave a body-centered cubic unit cell with a lattice constant a0=8.868(1) Å at room temperature, which is significantly larger than previously found in other silica sodalites. The value of a0 agrees with the SiOSi bonding angle derived from the position of the 29Si NMR signal. Infrared (IR) and 1H,13C nuclear magnetic resonance (NMR) spectroscopic data are in agreement with dioxolane molecules occluded in a porous matrix. The weight loss during thermal analysis in an oxygen atmosphere shows that within the limits of the method each sodalite cage is occupied by one 1,3-dioxolane molecule. Differential scanning calorimetry (DSC) between 120 and 470 K reveals a reversible, temperature-induced phase transition at 271 K.

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(C3H6O2)2, (Si6O12)2, a new silica sodalite synthesized, using 1,3-dioxolane as template. / van de Goor, Gianpietro; Behrens, Peter; Felsche, Jürgen.
in: Microporous Materials, Jahrgang 2, Nr. 6, 07.1994, S. 493-500.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

van de Goor G, Behrens P, Felsche J. (C3H6O2)2, (Si6O12)2, a new silica sodalite synthesized, using 1,3-dioxolane as template. Microporous Materials. 1994 Jul;2(6):493-500. doi: 10.1016/0927-6513(94)E0064-2
van de Goor, Gianpietro ; Behrens, Peter ; Felsche, Jürgen. / (C3H6O2)2, (Si6O12)2, a new silica sodalite synthesized, using 1,3-dioxolane as template. in: Microporous Materials. 1994 ; Jahrgang 2, Nr. 6. S. 493-500.
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title = "(C3H6O2)2, (Si6O12)2, a new silica sodalite synthesized, using 1,3-dioxolane as template",
abstract = "A clathrasil with SOD structure has been obtained using 1,3-dioxolane as a template. The synthesis was achieved under hydrothermal conditions at temperatures between 423 and 433 K in the SiO2Na2OC3H6O2H2O system. The choice of the template was guided by stereochemical comparisons with the templates known for silica sodalite synthesis, ethylene glycol and 1,3,5-trioxane. The powder X-ray diffraction (XRD) measurement of dioxolane silica sodalite (C3H6O2)2(Si6O12)2 showed the typical pattern of silica sodalites with sharp, discrete reflections indicating high crystallinity. Indexing and refinement of the diffraction pattern gave a body-centered cubic unit cell with a lattice constant a0=8.868(1) {\AA} at room temperature, which is significantly larger than previously found in other silica sodalites. The value of a0 agrees with the SiOSi bonding angle derived from the position of the 29Si NMR signal. Infrared (IR) and 1H,13C nuclear magnetic resonance (NMR) spectroscopic data are in agreement with dioxolane molecules occluded in a porous matrix. The weight loss during thermal analysis in an oxygen atmosphere shows that within the limits of the method each sodalite cage is occupied by one 1,3-dioxolane molecule. Differential scanning calorimetry (DSC) between 120 and 470 K reveals a reversible, temperature-induced phase transition at 271 K.",
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T1 - (C3H6O2)2, (Si6O12)2, a new silica sodalite synthesized, using 1,3-dioxolane as template

AU - van de Goor, Gianpietro

AU - Behrens, Peter

AU - Felsche, Jürgen

PY - 1994/7

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N2 - A clathrasil with SOD structure has been obtained using 1,3-dioxolane as a template. The synthesis was achieved under hydrothermal conditions at temperatures between 423 and 433 K in the SiO2Na2OC3H6O2H2O system. The choice of the template was guided by stereochemical comparisons with the templates known for silica sodalite synthesis, ethylene glycol and 1,3,5-trioxane. The powder X-ray diffraction (XRD) measurement of dioxolane silica sodalite (C3H6O2)2(Si6O12)2 showed the typical pattern of silica sodalites with sharp, discrete reflections indicating high crystallinity. Indexing and refinement of the diffraction pattern gave a body-centered cubic unit cell with a lattice constant a0=8.868(1) Å at room temperature, which is significantly larger than previously found in other silica sodalites. The value of a0 agrees with the SiOSi bonding angle derived from the position of the 29Si NMR signal. Infrared (IR) and 1H,13C nuclear magnetic resonance (NMR) spectroscopic data are in agreement with dioxolane molecules occluded in a porous matrix. The weight loss during thermal analysis in an oxygen atmosphere shows that within the limits of the method each sodalite cage is occupied by one 1,3-dioxolane molecule. Differential scanning calorimetry (DSC) between 120 and 470 K reveals a reversible, temperature-induced phase transition at 271 K.

AB - A clathrasil with SOD structure has been obtained using 1,3-dioxolane as a template. The synthesis was achieved under hydrothermal conditions at temperatures between 423 and 433 K in the SiO2Na2OC3H6O2H2O system. The choice of the template was guided by stereochemical comparisons with the templates known for silica sodalite synthesis, ethylene glycol and 1,3,5-trioxane. The powder X-ray diffraction (XRD) measurement of dioxolane silica sodalite (C3H6O2)2(Si6O12)2 showed the typical pattern of silica sodalites with sharp, discrete reflections indicating high crystallinity. Indexing and refinement of the diffraction pattern gave a body-centered cubic unit cell with a lattice constant a0=8.868(1) Å at room temperature, which is significantly larger than previously found in other silica sodalites. The value of a0 agrees with the SiOSi bonding angle derived from the position of the 29Si NMR signal. Infrared (IR) and 1H,13C nuclear magnetic resonance (NMR) spectroscopic data are in agreement with dioxolane molecules occluded in a porous matrix. The weight loss during thermal analysis in an oxygen atmosphere shows that within the limits of the method each sodalite cage is occupied by one 1,3-dioxolane molecule. Differential scanning calorimetry (DSC) between 120 and 470 K reveals a reversible, temperature-induced phase transition at 271 K.

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