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calebby

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[求助] 急求BETA分子筛三种不同结构的模拟XRD。有CIF文件也行。。

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liuxiaocunde: 金币+1, 感谢交流 2012-12-15 22:29:27

The following two references first resolved the build-up of Beta zeolite framework with three crystal structures:
J. M. Newsam, M. M. J. Treacy, W. T. Koetsier and C. B. de Gruyter, Proc. R. Soc. Lond. A 420, 375 (1988).
J.B. Higgins, R.B. LaPierre, J.L. Schlenker, A.C. Rohrman, J.D. Wood, G.T. Kerr, W.J. Rohrbaugh. The framework topology of zeolite beta. Zeolites, 1988, 8(6), 445-538.

However, the IZC recognizes two of the three crystal structures in the Beta family, ie., the Beta polymorph A and B.

For Beta polymorph A, SiO2 Framework:
http://izasc-mirror.la.asu.edu/f ... p;STC=BEA&-find

For Beta polymorph B, SiO2 Framework:
http://izasc-mirror.la.asu.edu/f ... olite=yes&-find

For more information regard to Beta zeolite please refer to:
(1) R. L. Wadlinger, G. T. Kerr and E. J. Rosinski, US Patent 3,308,069 (1967).
(2) A. Corma, M.T. Navarro, F. Rey, J. Rius, and S. Valencia, Angew. Chem., Int. Ed. 40, 2277(2001).
(3) M. Marler, R. Boehme and H.Gies, Proc. 9th IZC, Montreal, Butterworth-Heinemann (1993) p. 425.
(4) K. S. N. Reddy, M. J. Eapen, P. N. Joshi, S. P. Mirajkar and V. P. Shiralkar, J. Incl. Phenom. Mol. Recogn. Chem. 20, 197 (1994).
(5) R. C. Boggs, D. G. Howard, J. V. Smith and G. L. Klein, Am. Mineral. 78, 822(1993).