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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sartbaeva, Asel
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Topics
Publications (12/12 displayed)
- 2019Defective hierarchical porous copper-based metal-organic frameworks synthesised via facile acid etching strategycitations
- 2019Defective hierarchical porous copper-based metal-organic frameworks synthesised via facile acid etching strategycitations
- 2019Formation and characterisation of ZnS nanoclusters in the pore channels of modernite zeolite
- 2017Defining the flexibility window in ordered aluminosilicate zeolitescitations
- 2017Local and Average Structural Changes in Zeolite A upon Ion Exchangecitations
- 2015GASP: software for geometric simulations of flexibility in polyhedral and molecular framework structurescitations
- 2011Flexibility windows and phase transitions of ordered and disordered ANA framework zeolitescitations
- 2009Compression behaviour and flexibility window of the analcime like feldspathoids: experimental and theoretical findingscitations
- 2008Flexibility window controls pressure-induced phase transition in analcimecitations
- 2008Search for a structural response to the intermediate phase in GexSe1-x glassescitations
- 2007Local structural variability and the intermediate phase window in network glassescitations
- 2005Ionic diffusion in quartz studied by transport measurements, SIMS and atomistic simulationscitations
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article
Flexibility window controls pressure-induced phase transition in analcime
Abstract
Analcime under pressure undergoes a phase transition at ∼1.0 GPa from a cubic () form to a low-symmetry triclinic () form. We use geometric simulation to relate the pressure behavior of analcime to a recently discovered property of zeolite frameworks, the "flexibility window", defined as the range of densities over which the tetrahedral units in the framework can in principle be made geometrically ideal. Our results show that the range of stability of the cubic phase in analcime is defined by the flexibility window of the cubic framework. Analcime at low density can undergo tetragonal distortion while remaining within the flexibility window, consistent with experimental reports of non-cubic symmetries. On compression to higher densities, the capacity for tetragonal distortion is greatly reduced, accounting for the dramatic reduction in symmetry at the pressure-induced phase transition. © Europhysics Letters Association.