Guest/host relationships in the synthesis of the novel cage-based zeolites SSZ-35, SSZ-36, and SSZ-39

Wagner, P; Nakagawa, Y; Lee, G S; Davis, M E; Elomari, S; Medrud, R C; Zones, S I

doi:10.1021/ja990722u

Title: Guest/host relationships in the synthesis of the novel cage-based zeolites SSZ-35, SSZ-36, and SSZ-39

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Abstract

This report describes the synthesis and structure of three high-silica molecular sieves, SSZ-35, SSZ-36, SSZ-39, that are prepared from a library of 37 different cyclic and polycyclic quaternized amine molecules that are used as structure-directing agents (SDAs). The size and shape of the quaternized amine molecules are purposely designed in order to obtain novel zeolite structure, and the synthesis of these molecules is presented. The selectivity for the three molecular sieve phases is found to depend on both the SDA and the degree of heteroatom lattice substitution of Al{sup 3+} or B{sup 3+} in the silicate framework. Molecular modeling is utilized to probe the effects of the nonbonded SDA/zeolite-framework interaction energy on the selectivity for the observed molecular sieve phase. The Reitveld refinement of the powder X-ray data confirms the structure of the SSZ-39 zeolite to be isomorphous with the aluminophosphate molecular sieve, SAPO-18 (AEI). The structure of SSZ-36 is found to possess a range of fault probabilities between the two-dimensional channel system, end-member polymorphs, ITQ-3 and RUB-13 (International Zeolite Association Codes ITE and RTH, respectively). The SSZ-35 structure is reported to contain a one-dimensional pore system possessing stacked cages circumscribed by alternating rings of 10 and 18 tetrahedral atomsmore » (10- and 18-membered rings).« less

Authors:: Wagner, P; Nakagawa, Y; Lee, G S; Davis, M E; Elomari, S; Medrud, R C; Zones, S I

Publication Date:: Wed Jan 19 00:00:00 EST 2000

Research Org.:: California Inst. of Tech., Pasadena, CA (US)

Sponsoring Org.:: USDOE

OSTI Identifier:: 20017327

Resource Type:: Journal Article

Journal Name:: Journal of the American Chemical Society

Additional Journal Information:: Journal Volume: 122; Journal Issue: 2; Other Information: PBD: 19 Jan 2000; Journal ID: ISSN 0002-7863

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; ZEOLITES; SYNTHESIS; CRYSTAL STRUCTURE; MOLECULAR SIEVES; QUATERNARY COMPOUNDS; AMINES; ALUMINIUM; BORON

Citation Formats


                    Wagner, P, Nakagawa, Y, Lee, G S, Davis, M E, Elomari, S, Medrud, R C, and Zones, S I. Guest/host relationships in the synthesis of the novel cage-based zeolites SSZ-35, SSZ-36, and SSZ-39.  United States: N. p., 2000. 
        Web.  doi:10.1021/ja990722u.

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                    Wagner, P, Nakagawa, Y, Lee, G S, Davis, M E, Elomari, S, Medrud, R C, & Zones, S I. Guest/host relationships in the synthesis of the novel cage-based zeolites SSZ-35, SSZ-36, and SSZ-39.  United States.  https://doi.org/10.1021/ja990722u

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                    Wagner, P, Nakagawa, Y, Lee, G S, Davis, M E, Elomari, S, Medrud, R C, and Zones, S I. 2000.  
        "Guest/host relationships in the synthesis of the novel cage-based zeolites SSZ-35, SSZ-36, and SSZ-39".  United States.  https://doi.org/10.1021/ja990722u.

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@article{osti_20017327,

  title        = {Guest/host relationships in the synthesis of the novel cage-based zeolites SSZ-35, SSZ-36, and SSZ-39},

  author       = {Wagner, P and Nakagawa, Y and Lee, G S and Davis, M E and Elomari, S and Medrud, R C and Zones, S I},

  abstractNote = {This report describes the synthesis and structure of three high-silica molecular sieves, SSZ-35, SSZ-36, SSZ-39, that are prepared from a library of 37 different cyclic and polycyclic quaternized amine molecules that are used as structure-directing agents (SDAs). The size and shape of the quaternized amine molecules are purposely designed in order to obtain novel zeolite structure, and the synthesis of these molecules is presented. The selectivity for the three molecular sieve phases is found to depend on both the SDA and the degree of heteroatom lattice substitution of Al{sup 3+} or B{sup 3+} in the silicate framework. Molecular modeling is utilized to probe the effects of the nonbonded SDA/zeolite-framework interaction energy on the selectivity for the observed molecular sieve phase. The Reitveld refinement of the powder X-ray data confirms the structure of the SSZ-39 zeolite to be isomorphous with the aluminophosphate molecular sieve, SAPO-18 (AEI). The structure of SSZ-36 is found to possess a range of fault probabilities between the two-dimensional channel system, end-member polymorphs, ITQ-3 and RUB-13 (International Zeolite Association Codes ITE and RTH, respectively). The SSZ-35 structure is reported to contain a one-dimensional pore system possessing stacked cages circumscribed by alternating rings of 10 and 18 tetrahedral atoms (10- and 18-membered rings).},

  doi          = {10.1021/ja990722u},

  url          = {https://www.osti.gov/biblio/20017327},
  journal      = {Journal of the American Chemical Society},

  issn         = {0002-7863},

  number       = 2,

  volume       = 122,

  place        = {United States},

  year         = {Wed Jan 19 00:00:00 EST 2000},

  month        = {Wed Jan 19 00:00:00 EST 2000}

}

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