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Extralattice anions and brØnsted acid centers of rare-earth zeolites of the faujasite group

  • Inorganic Chemistry
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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    On the basis of spectroscopic data the authors have refined the interpretation of the hydroxyl bands in the IR spectra of zeolites of the faujasite group with rare-earth cations.

  2. 2.

    In zeolites of type X, dehydrated in vacuum, the charges of the acid hydroxyl groups are compensated by the charges on the OH and O2− anions. In zeolites of type Y, dehydrated in the same conditions, there are no O2− ions.

  3. 3.

    The authors suggest a probable mechanism for the influence of water coordinated by cations on the frequency of the acid hydroxyl groups.

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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 272–280, February, 1979.

The authors thank N. N. Samulevich for lending the Na forms of the zeolites, synthesized by him.

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Stavitskaya, G.P., Ryskin, Y.I. & Zhdanov, S.P. Extralattice anions and brØnsted acid centers of rare-earth zeolites of the faujasite group. Russ Chem Bull 28, 250–256 (1979). https://doi.org/10.1007/BF00925860

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  • DOI: https://doi.org/10.1007/BF00925860

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