Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/59206
Type: Artigo de periódico
Title: PENTACYANOFERRATES(II) ON THE SURFACE OF ORGANOMODIFIED SILICA-GEL - THE MATRIX EFFECT
Author: RODRIGUES, UP
GUSHIKEM, Y
FUJIWARA, FY
STADLER, E
DRAGO, V
Abstract: Pentacyanoferrate(II) absorbed on a silica gel surface previously modified with 3-aminopropyl and 3-imidazolylpropyl groups were characterized by C-13 MAS/NMR, FT-IR, Mossbauer spectroscopy, and cyclic voltammetry. FT-IR and C-13 MAS/NMR data indicated that the pentacyanoferrate(II) complex is bonded to the surface by the nitrogen atom of the functional group. The differences in the isomeric shifts, the quandrupole splittings and the midpoint potentials of the adsorbed complexes in comparison with the model complexes were attributed to the matrix polar effect-i.e., the interaction of the complex with polar groups on the silica surface.
Subject: PENTACYANOFERRATE
ORGANOMODIFIED SILICA GEL
IMIDAZOLE MODIFIED SILICA GEL
AMINOPROPYL MODIFIED SILICA GEL
PENTACYANOFERRATE IMMOBILIZED ON SILICA GEL
Editor: Plenum Publ Corp
Rights: fechado
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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