Intercalation compounds involving inorganic layered structures

Anais da Academia Brasileira de Ciências

Vera R. L. Constantino¹  CÉsar A. S. Barbosa¹  Marcos A. Bizeto¹  PatrÍcia M. Dias¹ 

[1] ,Universidade de São Paulo Instituto de Química Departamento de Química FundamentalSão Paulo SP ,Brazil

关键词: intercalation compounds;    layered double hydroxides;    smectite clays;    layered niobates;   

DOI  :  10.1590/S0001-37652000000100006

来源: SciELO

【 摘 要 】

Two-dimensional inorganic networks can shown intracrystalline reactivity, i.e., simple ions, large species as Keggin ions, organic species, coordination compounds or organometallics can be incorporated in the interlayer region. The host-guest interaction usually causes changes in their chemical, catalytic, electronic and optical properties. The isolation of materials with interesting properties and making use of soft chemistry routes have given rise the possibility of industrial and technological applications of these compounds. We have been using several synthetic approaches to intercalate porphyrins and phthalocyanines into inorganic materials: smectite clays, layered double hydroxides and layered niobates. The isolated materials have been characterized by elemental and thermal analysis, X-ray diffraction, surface area measurements, scanning electronic microscopy, electronic and resonance Raman spectroscopies and EPR. The degree of layer stacking and the charge density of the matrices as well their acid-base nature were considered in our studies on the interaction between the macrocycles and inorganic hosts.

【 授权许可】

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