Crystal structure of a synthetic high silica zeolite—ZSM-39

Schlenker, J.L.; Dwyer, Francis G.; Jenkins, E.E.; Rohrbaugh, Wayne J.; Kokotailo, G. T.; Meier, W.M.

doi:10.1038/294340a0

Cited by 114 publications

(56 citation statements)

References 6 publications

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“…MTN-type zeolites of tetragonal structure have been synthesized using methylamine (2), pyridine (5), and tetrahydrofuran (THF) (6) as the structure directing agent associated with glycerin (2), HF solution (5), and ethylenediamine (6), respectively, whereas cubic MTN zeolites have been obtained using tetramethyl-or tetraethylammonium hydroxide (1,7), pyrrolidine or propylamine (8), 2-aminopropane or 2-amino-2-methylpropane (9), and tetramethylethylenediamine (TMEDA) (10) as the template.…”

Section: Introductionmentioning

confidence: 99%

Crystallization and Spontaneous Phase Transformation of MTN-Type Zeolite with Tetragonal Symmetry

Song

Wang

Zhou

et al. 2002

Journal of Solid State Chemistry

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Section: Introductionmentioning

confidence: 99%

Crystallization and Spontaneous Phase Transformation of MTN-Type Zeolite with Tetragonal Symmetry

Song

Wang

Zhou

et al. 2002

Journal of Solid State Chemistry

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“…There water molecules form a dodecahedral cage or cages dual to ZI4, Z15 and ZI6 configurations in a defect core. Furthermore dual structures to Laves phase (MxT136) and A15 (M,,T46) have been observed in some silica compounds (T = SiO2) (Shenker et al, 1981) and alkali-metal silicides ( T = Si) (Cros, Pouchard & Hagenmuller, 1970). Here it should be noted that an interstitial molecule plays a crucial role in stabilizing these structures.…”

Section: Rolling Polytope {5 3 3}mentioning

confidence: 99%

Propagating local positional order in tetrahedrally bonded systems

Ishii¹

1988

Acta Cryst Sect A

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Several possible aperiodic tetrahedrally bonded structures are investigated based on the concept of propagating local positional order. Local positional order (LPO) in a tetrahedrally bonded system is parametrized by the angle of relative rotation of tetrahedral coordinations of adjacent atoms, 0. By choosing 0 appropriately we can have LPO which is incompatible with periodic translational order. Propagation of LPO is described here by rolling polytope {5, 3, 3} and polytope 240. Defects of LPO in a system filled with atoms by a rolling polytope are discussed. As an alternative model, a three-dimensional Penrose tiling with tetrahedral decoration is investigated. It is shown that the proposed decoration necessarily introduces atoms with a broken bond.

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“…Hypothetical nets related to the structure types MTN and MEP have been described by Schlenker, Dwyer, Jenkins, Rohrbaugh, Kokotailo & Meier (1981). Polytypic structures (Verma & Krishna, 1966) related to the MTN (Gies, Liebau & Gerke, 1982) and DDR (Gies, 1986) frameworks have also been described.…”

Section: Framework Structures Constructed From Face-sharing Group B 2mentioning

confidence: 99%

Towards a general description of hexagonal three-dimensional framework structures: the lateral connection of trigonal columns (LCTC) group

Andries¹

1990

Acta Cryst Sect A

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Hexagonal three-dimensional framework structures are constructed from trigonal columns. When two 0108-7673/90/100855-14503.00 types of trigonal column are distinguished, all hexagonal 3D framework structures known to date can be classified in the lateral connection of trigonal columns (LCTC) group. Also, orthorhombic 3D nets © 1990 International Union of Crystallography 856 THE LCTC GROUP can be constructed from trigonal columns and a number of such hypothetical nets related to the hexagonal 81(i) series of Smith & Dytrych [Nature (London) (1984), 309, 607-608] are enumerated. A systematic investigation of the several ways by which neighbouring trigonal columns can be linked and symmetry related gives rise to a large number of subgroups in the present LCTC group. A general designation for LCTC structures by means of a composite code is proposed.

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Crystal structure of a synthetic high silica zeolite—ZSM-39

Cited by 114 publications

References 6 publications

Crystallization and Spontaneous Phase Transformation of MTN-Type Zeolite with Tetragonal Symmetry

Crystallization and Spontaneous Phase Transformation of MTN-Type Zeolite with Tetragonal Symmetry

Propagating local positional order in tetrahedrally bonded systems

Towards a general description of hexagonal three-dimensional framework structures: the lateral connection of trigonal columns (LCTC) group

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