Zobrazeno 1 - 10 of 77 pro vyhledávání: '"George T. Kokotailo"'
1
Solid-State NMR Studies of Zeolites and Related Systems
Autor: George T. Kokotailo, Κ. T. Mueller, C. A. Fyfe
In recent years, high-resolution solid-state nuclear magnetic resonance (NMR) spectroscopy has emerged as a powerful complementary method to diffraction techniques for the investigation of zeolite molecular sieve structures. This chapter presents a d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::407627852a753251ef79517fcaa42744
https://doi.org/10.1201/9781003067238-1
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2
Low Temperature Syntheses of Highly-ordered Framework Materials: The Aluminium Phosphate Ammonium Taranakite
Autor: Colin A. Fyfe, George T. Kokotailo, Wilhelm Schwieger, H. Meyer zu Altenschildesche
Publikováno v: Zeitschrift für anorganische und allgemeine Chemie. 624:1712-1717
The formation of a highly crystalline ammonium analogue of the aluminium phosphate mineral taranakite at ambient temperature and above is described. The high crystallinity and ordering of the products obtained when ammonium is used as a templating ag
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b6e2deb034de08439463a23f2fa2ac5
https://doi.org/10.1002/(sici)1521-3749(199810)624:10<1712::aid-zaac1712>3.0.co
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3
The structure of the low temperature (20 K) form of zeolite ZSM-11 derived from 29Si MAS NMR spectroscopy, lattice energy minimization and Rietveld refinement
Autor: Bernd Marler, Colin A. Fyfe, Hiltrud Grondey, M. Hochgräfe, Y. Feng, Hermann Gies, George T. Kokotailo
Publikováno v: Zeitschrift für Kristallographie - Crystalline Materials. 211:221-227
The crystal structure of the low temperature form of ZSM-11 (structure code MEL) was refined from high resolution synchrotron X-ray powder diffraction data, recorded at 20 K. Based on the results of 2D 29Si NMR investigations a model was obtained by
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::28336c7e78694eb6ce1a610e76213646
https://doi.org/10.1524/zkri.1996.211.4.221
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6
The structure of zeolite ZSM-23 (MTT) refined from synchrotron X-ray powder data
Autor: Colin A. Fyfe, Hiltrud Grondey, D.E. Cox, Sylvia Ernst, George T. Kokotailo, Bernd Marler, Hermann Gies, Jens Weitkamp, C. Deroche, Y. Feng
Publikováno v: Journal of Applied Crystallography. 26:636-644
The structure of zeolite ZSM-23 (structure-type code MTT) loaded with NH4F [ao = 11.129 (1), bo = 5.025 (1) and Co = 21.519 (1) A and β = 89.85 (4)°] was refined from high-resolution synchrotron X-ray powder data. The Rietveld refinement converged
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18ddbe64dcc34a74b7327c913a580774
https://doi.org/10.1107/s0021889893002006
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9
Two-dimensional solid-state 29Si n.m.r. investigation of the three-dimensional bonding connectivities and structure of zeolite ZSM-23
Autor: Y. Feng, Colin A. Fyfe, Hiltrud Grondey, S. Ernst, George T. Kokotailo, Jens Weitkamp
Publikováno v: Zeolites. 12:50-53
Zeolite ZSM-23 has been studied by one- and two-dimensional 29 Si MAS n.m.r. spectroscopy. The results reveal that there are twelve inequivalent T-sites with equal occupanies in the unit cell. A two-dimensional INADEQUATE experiment yielded the compl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::199cdab0499b6cab650472e59304cb57
https://doi.org/10.1016/0144-2449(92)90009-e
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