Abstract
Structural analysis of CO2-silicalite-1 crystals using the single-crystal X-ray diffraction method reveals that the crystal system is twinned monoclinic. The structure of silicalite-1 (MFI-type zeolites) loaded with CO2 has previously been solved in orthorhombic system [1], but the R value is still large. Since CO2 molecules are too small to maintain the orthorhombic structure, it is considered that the CO2-silicalite-1 crystals should be in the relaxed monoclinic twin phase. The diffraction data in the previous report is recalculated in P21/n as the monoclinic twinning.
Received: 2013-05-23
Accepted: 2013-09-01
Published Online: 2014-01-20
Published in Print: 2014-04-01
© 2014 Walter de Gruyter GmbH, Berlin/Boston
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Artikel in diesem Heft
- Masthead
- The Stannides Sm6Pd10–xSn11 and Sm3Pd5–x
- Intermetallic magnesium compounds RE2RuMg3 (RE = Dy, Ho, Er, Tm, Lu) and RE3Ru2Mg (RE = Sc, Er, Lu) with bcc Superstructures
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- Polymorphous transformation in the crystal structure of [Mg(H2O)6Br2][(C7H14N4)2] · 4 (H2O) studied by powder and single crystal X-ray diffraction
- Conformational studies of 2-(4-bromophenyl)-2-oxoethyl benzoates
- Erratum: Hierarchical structure of marine shell biomaterials: biomechanical functionalization of calcite by brachiopods
- Erratum: High Pressure Crystallography – Edited by Ross Angel, Francesca Fabbiani and Pierre Bouvier – Part I and Part II (2/2014, 3/2014)
Schlagwörter für diesen Artikel
CO2;
silicalite-1;
monoclinic twinning;
single crystal structure analysis
Artikel in diesem Heft
- Masthead
- The Stannides Sm6Pd10–xSn11 and Sm3Pd5–x
- Intermetallic magnesium compounds RE2RuMg3 (RE = Dy, Ho, Er, Tm, Lu) and RE3Ru2Mg (RE = Sc, Er, Lu) with bcc Superstructures
- 2 : 1 Co-crystals of p-nitrophenylacetic acid with three isomeric n-pyridinealdazines, n = 2, 3 and 4, featuring the {… HOCO … N(py)} heterosynthon
- Reanalysis of CO2-silicalite-1 structure as monoclinic twinning
- Conformation differences in N-[2-(1-arenesulfonyl-1H-pyrazol-3-yl)-6-methyl-phenyl]-arenesulfonamides, (arene = benzene and 4-toluene)
- Polymorphous transformation in the crystal structure of [Mg(H2O)6Br2][(C7H14N4)2] · 4 (H2O) studied by powder and single crystal X-ray diffraction
- Conformational studies of 2-(4-bromophenyl)-2-oxoethyl benzoates
- Erratum: Hierarchical structure of marine shell biomaterials: biomechanical functionalization of calcite by brachiopods
- Erratum: High Pressure Crystallography – Edited by Ross Angel, Francesca Fabbiani and Pierre Bouvier – Part I and Part II (2/2014, 3/2014)