Zeolites are an important class of materials that have wide ranging applications such as heterogeneous catalysts and adsorbents which are dependent on their framework topology. For new applications or improvements to existing ones, new zeolites with novel pore systems are desirable. We demonstrate a method for the synthesis of novel zeolites using the ADOR route. ADOR is an acronym for Assembly, Disassembly, Organization and Reassembly. This synthetic route takes advantage of the assembly of a relatively poorly stable that which can be selectively disassembled into a layered material. The resulting layered intermediate can then be organized in different manners by careful chemical manipulation and then reassembled into zeolites with new topologies. By carefully controlling the organization step of the synthetic pathway, new zeolites with never before seen topologies are capable of being synthesized. The structures of these new zeolites are confirmed using powder X-ray diffraction and further characterized by nitrogen adsorption and scanning electron microscopy. This new synthetic pathway for zeolites demonstrates its capability to produce novel frameworks that have never been prepared by traditional zeolite synthesis techniques.

EaStChem School of Chemistry The University of St Andrews

EaStChem School of Chemistry The University of St Andrews;

J Heyrovský Institute of Physical Chemistry Academy of Sciences of the Czech Republic

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Cundy CS, Cox PA. The hydrothermal synthesis of zeolites: History and development from the earliest days to the present time. Chem. Rev. 2003;103(3):663–701. PubMed

Cundy CS, Cox PA. The hydrothermal synthesis of zeolites: Precursors, intermediates and reaction mechanism. Micropor. Mesopor. Mater. 2005;82(1-2):1–78.

Wilson ST, Lok BM, Messina CA, Cannan TR, Flanigen E. Aluminophosphate molecular-sieves - a new class of microporous crystalline inorganic solids. J. Am. Chem. Soc. 1982;104(4):1146–1147.

Roth WJ, et al. A family of zeolites with controlled pore size prepared using a top-down method. Nat. Chem. 2013;5(7):628–633. PubMed

Roth WJ, Nachtigall P, Morris RE, Cejka J. Two-Dimensional Zeolites: Current Status and Perspectives. Chem. Rev. 2014;114(9):4807–4837. PubMed

Chlubná P, et al. 3D to 2D Routes to Ultrathin and Expanded Zeolitic Materials. Chem. Mater. 2013;25(4):542–547.

Chlubná-Eliášová P, et al. The Assembly-Disassembly-Organization-Reassembly Mechanism for 3D-2D-3D. Transformation of Germanosilicate IWW Zeolite. Angew. Chem. Int. Ed. 2014;53(27):7048–7052. PubMed PMC

Morris RE, Čejka J. Exploiting chemically selective weakness in solids as a route to new porous materials. Nat. Chem. 2015;7(5):381–388. PubMed

Paillaud JL, Harbuzaru B, Patarin J, Bats N. Extra-large-pore zeolites with two-dimensional channels formed by 14 and 12 rings. Science. 2004;304(5673):990–992. PubMed

Corma A, Diaz-Cabanas MJ, Rey F, Nicolooulas S, Boulahya K. ITQ-15: The first ultralarge pore zeolite with a bi-directional pore system formed by intersecting 14- and 12-ring channels, and its catalytic implications. Chem. Comm. 2004. pp. 1356–1357. PubMed

Rouquerol J, Llewellyn P, Rouquerol F. Is the BET equation applicable to microporous adsorbents? Stud. Surf. Sci. Catal. 2006;160:49–56.

Trachta M, Bludsky O, Cejka J, Morris RE, Nachtigall P. From Double-Four-Ring Germanosilicates to New Zeolites: In Silico Investigation. Chemphyschem. 2014;15(14):2972–2976. PubMed

Wheatley P, et al. Zeolites with continuously tuneable porosity. Angew. Chem. Int. Ed. 2014;53(48):13210–13214. PubMed PMC

Kinetics and Mechanism of the Hydrolysis and Rearrangement Processes within the Assembly-Disassembly-Organization-Reassembly Synthesis of Zeolites