Abstract
The lattice energies of the as-synthesized fluoride-containing chabazite-like aluminophosphate (AlPO4-34F) and of the corresponding metal-substituted materials [MeAPO-34F, Me = Mn(II), Co(II), Ni(II)] have been calculated in order to investigate the Al-site preference the transition metal substitution in the AlPO4-34F. The calculations show that the transition metal ions in MeAPO-34F should preferentially occupy octahedral Al3+ sites, and kinetic reasons are suggested as an explanation for the actual preference of tetrahedral sites. The lattice energies have also been calculated for the calcined AlPO4-34F material (AlPO4-34) and the rehydrated-calcined product (AlPO4-34h). The AlPO4-34 is found to be less stable than either AlPO4-34F or AlPO4-34h, which is consistent with the fact that AlPO4-34 can only be prepared starting from AlPO4-34F.
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S.T. Wilson, B.M. Lok, C.A. Messina, T.R. Cannan, and E.M. Flanigen, J. Am. Chem. Soc. 104, 1146 (1982).
B.M. Lok, C.A. Messina, R.L. Patton, R.T. Gajek, T.R. Cannan, and E.M. Flanigen, J. Am. Chem. Soc. 106, 6092 (1984).
C.A. Messina, B.M. Lok, and E.M. Flanigen, U.S. Patent 4 544 143 (1985).
S. Ashtekar, S. Chilukuri, A.M. Prakash, and D.K. Chakrabarty, J. Phys. Chem. 100, 3665 (1996).
S. Ashtekar, S. Chilukuri, A.M. Prakash, C.S. Harendranath, and D.K. Chakrabarty, J. Phys. Chem. 99, 693765 (1995).
N. Rajic, Dj. Stojakovic, S. Hocevar, and V. Kaucic, Zeolites 13, 384 (1993).
T. Inui, H. Matsuda, H. Okaniwa, and A. Miayamoto, Appl. Catal. 58, 155 (1990).
S. Hocevar, J. Batista, and V. Kaucic, J. Catal. 139, 351 (1993).
J. Liang, H. Li, S. Zhao, W. Guo, and R. Wang, Appl. Catal. 64, 31 (1990).
M. Hartmann and L. Kevan, Chem. Rev. 99, 635 (1999).
J.D. Gale, J. Chem. Soc., Faraday Trans. 93, 629 (1997).
P.P. Ewald, Ann. Physik 64, 253 (1921).
B.G. Dick and A.W. Overhauser, Phys. Rev. 112, 90 (1958).
R.A. Jackson and C.R.A. Catlow, Mol. Sim. 1, 207 (1988).
P.A. Wright, S. Natarjan, J.M. Thomas, R.G. Bell, P.L. Gai-Boyes, R.H. Jones, and J.S. Chen, Angew. Chem., Int. Ed. Engl. 31, 1472 (1992).
R.E. Morris, S.J. Weigel, N.J. Henson, L.M. Bull, M.T. Janicke, B.F. Chmelka, and A.K. Cheetham, J. Am. Chem. Soc. 116, 11849 (1994).
D.W. Lewis, C.R.A. Catlow, G. Sankar, and S.W. Carr, J. Phys Chem., 99, 2377 (1995).
R.G. Bell, R.A. Jackson, and C.R.A. Catlow, J.Chem. Soc., Chem. Commun., 782 (1990).
R.A. Jackson, S.C. Parker, and P. Tschaufeser in Modeling of Structure and Reactivity in Zeolites, edited by C.R.A. Catlow(Academic Press, London, 1992), p. 43.
J.G. Gonzales, J.C. Alcaz, A.R. Ruiz-Salvador, A. Gomez, A. Dago, and C. Pozas, Micropor. Mesopor. Mater. 29, 361 (1999).
M. Ito, Y. Shimoyama, and Y. Saito, Acta Cryst. C41, 1698 (1985).
A. Simmen, Ph.D. Thesis, ETH Nr. 9710, University of Zurich, Switzerland, 1992.
A. Meden, L.B. McCusker, C. Baerlocher, V. Kaucic, A. Ristic, N. Rajic, G. Mali, S. Caldarelli, and A. Tuel, J. Phys. Chem. B 104, 5697 (2000).
A. Szabo and N.S. Ostlund in Modern Quantum Chemistry (Dover Publications. Inc., Mineola, 1996), p.203.
N. Rajic, R. Gabrovsek, and V. Kaucic, Thermochim. Acta 306, 31 (1997).
N. Rajic, I. Arcon, V. Kaucic, and A. Kodre, Croatica Chem. Acta 72, 645 (1999).
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Stojakovic, D., Rajic, N. Computational Studies in the AlPO4-34 System. Journal of Porous Materials 8, 239–242 (2001). https://doi.org/10.1023/A:1012296908560
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DOI: https://doi.org/10.1023/A:1012296908560