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Fibrous Cerium (IV) Acid Phosphates Host of Weak and Strong Lewis Bases

  • Ricardo Romano
  • Oswaldo L. Alves
Article

Abstract

In this paper, we evaluated the behavior of fibrous cerium (IV) acid phosphate (CeP) in insertion procedures involving a strong Lewis base (ethylamine) and a weak one (ɛ-caprolactam). In the former case, the procedure was performed by exposing a sample of CeP to a saturated amine atmosphere. Insertion was shown to be independent of the crystallinity of CeP, and the products showed strong host–guest interactions of the Coulombic type. Conversely, ɛ-caprolactam insertion was achieved by immersing CeP samples into its fused form. This process was dependent on the crystallinity of the inorganic solid, and host–guest interactions were characterized as involving hydrogen bonds.

Keywords

CeP fibrous insertion intercalation layered acid phosphates tetravalent metal phosphates 

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Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.Laboratório de Química do Estado Sólido (http://lqes.iqm.unicamp.br), Instituto de QuímicaUNICAMPCampinasBrazil

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