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Complex zeolite structure solved by combining powder diffraction and electron microscopy

Abstract

Many industrially important materials, ranging from ceramics to catalysts to pharmaceuticals, are polycrystalline and cannot be grown as single crystals. This means that non-conventional methods of structure analysis must be applied to obtain the structural information that is fundamental to the understanding of the properties of these materials. Electron microscopy might appear to be a natural approach, but only relatively simple structures have been solved by this route. Powder diffraction is another obvious option, but the overlap of reflections with similar diffraction angles causes an ambiguity in the relative intensities of those reflections. Various ways of overcoming or circumventing this problem have been developed1,2, and several of these involve incorporating chemical information into the structure determination process3,4,5,6,7. For complex zeolite structures, the FOCUS algorithm8,9 has proved to be effective. Because it operates in both real and reciprocal space, phase information obtained from high-resolution transmission electron microscopy images can be incorporated directly into this algorithm in a simple way. Here we show that by doing so, the complexity limit can be extended much further. The power of this approach has been demonstrated with the solution of the structure of the zeolite TNU-9 (|H9.3|[Al9.3Si182.7O384]; ref. 10) with 24 topologically distinct (Si,Al) atoms and 52 such O atoms. For comparison, ITQ-22 (ref. 11), the most complex zeolite known to date, has 16 topologically distinct (Si,Ge) atoms.

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Figure 1: High-resolution transmission electron microscopy images taken along different zone axes of TNU-9.
Figure 2: The framework structure of TNU-9 (O atoms have been omitted for clarity).
Figure 3: Observed (blue), calculated (red) and difference (black) profiles for the Rietveld refinement of TNU-9.

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References

  1. David, W. I. F., Shankland, K., McCusker, L. B., Baerlocher, C. (eds) Structure Determination from Powder Diffraction Data (Oxford Univ. Press, Oxford, 2002)

  2. Baerlocher, Ch., McCusker, L. B. (eds) Structure determination from powder diffraction data. Z. Kristallogr. 219, (Spec. Iss.)782–901 (2004)

    CAS  Google Scholar 

  3. Harris, K. D. M., Habershon, S., Cheung, E. Y. & Johnston, R. L. Developments in genetic algorithm techniques for structure solution from powder diffraction data. Z. Kristallogr. 219, 838–846 (2004)

    CAS  Google Scholar 

  4. Favre-Nicolin, V. & Cerny, R. A better FOX: using flexible modelling and maximum likelihood to improve direct-space ab initio structure determination from powder diffraction. Z. Kristallogr. 219, 847–856 (2004)

    CAS  Google Scholar 

  5. Burton, A. W. Structure solution of zeolites from powder diffraction data. Z. Kristallogr. 219, 866–880 (2004)

    CAS  Google Scholar 

  6. Florence, A. J. et al. Solving molecular crystal structures from laboratory X-ray powder diffraction data with DASH: the state of the art and challenges. J. Appl. Crystallogr. 38, 249–259 (2005)

    Article  CAS  Google Scholar 

  7. Brodski, V., Peschar, R. & Schenk, H. Organa – a program package for structure determination from powder diffraction data by direct-space methods. J. Appl. Crystallogr. 38, 688–693 (2005)

    Article  CAS  Google Scholar 

  8. Grosse-Kunstleve, R. W., McCusker, L. B. & Baerlocher, C. Powder diffraction data and crystal chemical information combined in an automated structure determination procedure for zeolites. J. Appl. Crystallogr. 30, 985–995 (1997)

    Article  CAS  Google Scholar 

  9. Grosse-Kunstleve, R. W., McCusker, L. B. & Baerlocher, C. Zeolite structure determination from powder diffraction data: applications of the FOCUS method. J. Appl. Crystallogr. 32, 536–542 (1999)

    Article  CAS  Google Scholar 

  10. Hong, S. B. et al. Synthesis, structure solution, characterization, and catalytic properties of TNU-10: a high-silica zeolite with the STI topology. J. Am. Chem. Soc. 126, 5817–5826 (2004)

    Article  CAS  Google Scholar 

  11. Corma, A., Rey, F., Valencia, S., Jorda, J. L. & Rius, J. A zeolite with interconnected 8–10- and 12-ring pores and its unique catalytic selectivity. Nature Mater. 2, 493–497 (2003)

    Article  ADS  CAS  Google Scholar 

  12. Wagner, P. et al. Electron diffraction structure solution of a nano-crystalline zeolite at atomic resolution. J. Phys. Chem. B 103, 8245–8250 (1999)

    Article  CAS  Google Scholar 

  13. Baerlocher, C., Meier, W. M. & Olson, D. H. Atlas of Zeolite Framework Types (Elsevier, Amsterdam, 2001)

  14. Ohsuna, T., Liu, Z., Terasaki, O., Hiraga, K. & Camblor, M. Framework determination of a polytype of zeolite beta by using electron crystallography. J. Phys. Chem. B 106, 5673–5678 (2002)

    Article  CAS  Google Scholar 

  15. Dorset, D. L., Roth, W. J. & Gilmore, C. J. Electron crystallography of zeolites – the MWW family as a test of direct 3D structure determination. Acta Crystallogr. A 61, 516–527 (2005)

    Article  ADS  Google Scholar 

  16. Brenner, S., McCusker, L. B. & Baerlocher, C. Using a structure envelope to facilitate structure solution from powder diffraction data. J. Appl. Crystallogr. 30, 1167–1172 (1997)

    Article  CAS  Google Scholar 

  17. von Schnering, H. G. & Nesper, R. Nodal surfaces of Fourier series: fundamental invariants of structured matter. Z. Phys. B 83, 407–412 (1991)

    Article  ADS  Google Scholar 

  18. Brenner, S., McCusker, L. B. & Baerlocher, C. The application of structure envelopes in structure determination from powder diffraction data. J. Appl. Crystallogr. 35, 243–252 (2002)

    Article  CAS  Google Scholar 

  19. Fitch, A. N. The high resolution powder diffraction beam line at ESRF. J. Res. NIST 109, 133–142 (2004)

    Article  CAS  Google Scholar 

  20. Hovmöller, S. CRISP: crystallographic image processing on a personal computer. Ultramicroscopy 41, 121–135 (1992)

    Article  Google Scholar 

  21. Kokotailo, G. T., Lawton, S. L., Olson, D. H. & Meier, W. M. Structure of synthetic zeolite ZSM-5. Nature 272, 437–438 (1978)

    Article  ADS  CAS  Google Scholar 

  22. Pawley, G. S. Unit-cell refinement from powder diffraction scans. J. Appl. Crystallogr. 14, 357–361 (1981)

    Article  CAS  Google Scholar 

  23. Le Bail, A., Duroy, H. & Fourquet, J. L. Ab-initio structure determination of LiSbWO4 by X-ray powder diffraction. Mater. Res. Bull. 23, 447–452 (1988)

    Article  CAS  Google Scholar 

  24. Estermann, M. A. & Gramlich, V. Improved treatment of severely or exactly overlapping Bragg reflections for the application of direct methods to powder data. J. Appl. Crystallogr. 26, 396–404 (1993)

    Article  Google Scholar 

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Acknowledgements

We thank the beamline scientists at SRS, Daresbury, and A. Fitch at the ESRF, Grenoble, for their assistance with the powder diffraction measurements. Funding from the Swiss National Science Foundation (L.B.M, C.B., F.G.), the Swedish Science Research Council and the Japan Science and Technology Agency (T.O., O.T.), and the Korea Science and Engineering Foundation (S.B.H.) is acknowledged. Author Contributions F.G., C.B. and L.B.M. performed the data analysis and structure solution; S.J.W. and P.A.W. collected the synchrotron powder diffraction data and coordinated the project; Z.L., T.O. and O.T. obtained the HRTEM images; and B.H and S.B.H. synthesized and characterised TNU-9.

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Correspondence to Lynne B. McCusker.

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Crystallographic data for H-TNU-9 in cif format. (TXT 7 kb)

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Gramm, F., Baerlocher, C., McCusker, L. et al. Complex zeolite structure solved by combining powder diffraction and electron microscopy. Nature 444, 79–81 (2006). https://doi.org/10.1038/nature05200

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