Details
| Original language | English |
|---|---|
| Pages (from-to) | 163-170 |
| Number of pages | 8 |
| Journal | Chemistry of materials |
| Volume | 7 |
| Issue number | 1 |
| Publication status | Published - 1995 |
| Externally published | Yes |
Abstract
Single-crystals of sodium acetate sodalite [Na4(CH3COO)]2[Al3Si3O12]2 (1) and polycrystalline material of sodium formate sodalite [Na4(HCOO)]2[Al3Si3O12]2, (2) were synthesized under hydrothermal conditions. The interactions between the organic anions, Na cations, and the aluminosilicate sodalite framework, as well as the intracage reactivity of the enclathrated anions versus oxidation were investigated. Therefore, the crystal structures of 1 and 2 were refined based on single-crystal and powder X-ray diffraction data, respectively. Additionally, the compounds were characterized by thermoanalytical methods as well as infrared and multinuclear MAS NMR spectroscopy. 1 and 2 crystallize with the cubic space group P43n (Z - 1) and the cell constants (room temperature) a = 9.077(2) Å and a = 8.960-(2) Å, respectively. The 1:1 aluminosilicate host framework of 1 and 2 is a strictly alternating array of corner-linked AIO4 and S1O4 tetrahedra. Each [4668] polyhedral void is occupied by four Na+ cations, located close to oxygen atoms of the six-membered rings of the frameworks, and by one organic anion (CH3COO- or HCOO-) at the center. When 1 and 2 are annealed in air or oxygen at 1123 K and 923 K, respectively, intracage oxidation of the anion takes place without decomposition of the host framework, resulting in both cases in the same new sodalite phase which contains carbonate anions as a guest species. Sodium carbonate sodalite, [Na5(CO3)] [Na3□] [Al3Si3O12]2 (3), is cubic with the cell constant a = 9.040(3) Å (room temperature) and the space group P23 (Z = 1). A Rietveld refinement based on powder X-ray diffraction data revealed that the sodalite cages of 3 are filled alternatively with [Nas- (CO3)] and [Na3□] complexes in an ordered manner.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Chemical Engineering(all)
- General Chemical Engineering
- Materials Science(all)
- Materials Chemistry
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In: Chemistry of materials, Vol. 7, No. 1, 1995, p. 163-170.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Synthesis and Structural Characterization of Sodalites with Acetate and Formate Guest Anions, [Na4(CH3COO)]2[Al3Si3O12]2 and [Na4(HCOO)]2[Al3Si3O12]2, and Their Intracage Oxidation Product [Na5(CO3)] [Na3□] [Al3Si3O12]2
AU - Sieger, Peter
AU - Schneider, Andreas M.
AU - Wiebcke, Michael
AU - Behrens, Peter
AU - Felsche, Jürgen
AU - Engelhardt, Günter
PY - 1995
Y1 - 1995
N2 - Single-crystals of sodium acetate sodalite [Na4(CH3COO)]2[Al3Si3O12]2 (1) and polycrystalline material of sodium formate sodalite [Na4(HCOO)]2[Al3Si3O12]2, (2) were synthesized under hydrothermal conditions. The interactions between the organic anions, Na cations, and the aluminosilicate sodalite framework, as well as the intracage reactivity of the enclathrated anions versus oxidation were investigated. Therefore, the crystal structures of 1 and 2 were refined based on single-crystal and powder X-ray diffraction data, respectively. Additionally, the compounds were characterized by thermoanalytical methods as well as infrared and multinuclear MAS NMR spectroscopy. 1 and 2 crystallize with the cubic space group P43n (Z - 1) and the cell constants (room temperature) a = 9.077(2) Å and a = 8.960-(2) Å, respectively. The 1:1 aluminosilicate host framework of 1 and 2 is a strictly alternating array of corner-linked AIO4 and S1O4 tetrahedra. Each [4668] polyhedral void is occupied by four Na+ cations, located close to oxygen atoms of the six-membered rings of the frameworks, and by one organic anion (CH3COO- or HCOO-) at the center. When 1 and 2 are annealed in air or oxygen at 1123 K and 923 K, respectively, intracage oxidation of the anion takes place without decomposition of the host framework, resulting in both cases in the same new sodalite phase which contains carbonate anions as a guest species. Sodium carbonate sodalite, [Na5(CO3)] [Na3□] [Al3Si3O12]2 (3), is cubic with the cell constant a = 9.040(3) Å (room temperature) and the space group P23 (Z = 1). A Rietveld refinement based on powder X-ray diffraction data revealed that the sodalite cages of 3 are filled alternatively with [Nas- (CO3)] and [Na3□] complexes in an ordered manner.
AB - Single-crystals of sodium acetate sodalite [Na4(CH3COO)]2[Al3Si3O12]2 (1) and polycrystalline material of sodium formate sodalite [Na4(HCOO)]2[Al3Si3O12]2, (2) were synthesized under hydrothermal conditions. The interactions between the organic anions, Na cations, and the aluminosilicate sodalite framework, as well as the intracage reactivity of the enclathrated anions versus oxidation were investigated. Therefore, the crystal structures of 1 and 2 were refined based on single-crystal and powder X-ray diffraction data, respectively. Additionally, the compounds were characterized by thermoanalytical methods as well as infrared and multinuclear MAS NMR spectroscopy. 1 and 2 crystallize with the cubic space group P43n (Z - 1) and the cell constants (room temperature) a = 9.077(2) Å and a = 8.960-(2) Å, respectively. The 1:1 aluminosilicate host framework of 1 and 2 is a strictly alternating array of corner-linked AIO4 and S1O4 tetrahedra. Each [4668] polyhedral void is occupied by four Na+ cations, located close to oxygen atoms of the six-membered rings of the frameworks, and by one organic anion (CH3COO- or HCOO-) at the center. When 1 and 2 are annealed in air or oxygen at 1123 K and 923 K, respectively, intracage oxidation of the anion takes place without decomposition of the host framework, resulting in both cases in the same new sodalite phase which contains carbonate anions as a guest species. Sodium carbonate sodalite, [Na5(CO3)] [Na3□] [Al3Si3O12]2 (3), is cubic with the cell constant a = 9.040(3) Å (room temperature) and the space group P23 (Z = 1). A Rietveld refinement based on powder X-ray diffraction data revealed that the sodalite cages of 3 are filled alternatively with [Nas- (CO3)] and [Na3□] complexes in an ordered manner.
UR - http://www.scopus.com/inward/record.url?scp=0001256350&partnerID=8YFLogxK
U2 - 10.1021/cm00049a025
DO - 10.1021/cm00049a025
M3 - Article
AN - SCOPUS:0001256350
VL - 7
SP - 163
EP - 170
JO - Chemistry of materials
JF - Chemistry of materials
SN - 0897-4756
IS - 1
ER -