Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays
Herein, the immobilization of some Schiff base-copper(II) complexes in smectite clays is described as a strategy for the heterogenization of homogeneous catalysts. The obtained materials were characterized by spectroscopic techniques, mostly UV/Vis, EPR, XANES and luminescence spectroscopy. SWy-2 an...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2010-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010001000025 |
| _version_ | 1818267181102661632 |
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| author | Patrícia M. Dias Lilian Kinouti Vera R. L. Constantino Ana M. D. C. Ferreira Marcos B. Gonçalves Rafael R. do Nascimento Helena M. Petrilli Marília Caldas Regina C. G. Frem |
| author_facet | Patrícia M. Dias Lilian Kinouti Vera R. L. Constantino Ana M. D. C. Ferreira Marcos B. Gonçalves Rafael R. do Nascimento Helena M. Petrilli Marília Caldas Regina C. G. Frem |
| author_sort | Patrícia M. Dias |
| collection | DOAJ |
| description | Herein, the immobilization of some Schiff base-copper(II) complexes in smectite clays is described as a strategy for the heterogenization of homogeneous catalysts. The obtained materials were characterized by spectroscopic techniques, mostly UV/Vis, EPR, XANES and luminescence spectroscopy. SWy-2 and synthetic Laponite clays were used for the immobilization of two different complexes that have previously shown catalytic activity in the dismutation of superoxide radicals, and disproportionation of hydrogen peroxide. The obtained results indicated the occurrence of an intriguing intramolecular redox process involving copper and the imine ligand at the surface of the clays. These studies are supported by computational calculations. |
| first_indexed | 2024-12-12T20:18:30Z |
| format | Article |
| id | doaj.art-d7359fe9b54a42faa6a153501e09fbbe |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-12T20:18:30Z |
| publishDate | 2010-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-d7359fe9b54a42faa6a153501e09fbbe2022-12-22T00:13:19ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642010-01-0133102135214210.1590/S0100-40422010001000025Spectroscopic characterization of schiff base-copper complexes immobilized in smectite claysPatrícia M. DiasLilian KinoutiVera R. L. ConstantinoAna M. D. C. FerreiraMarcos B. GonçalvesRafael R. do NascimentoHelena M. PetrilliMarília CaldasRegina C. G. FremHerein, the immobilization of some Schiff base-copper(II) complexes in smectite clays is described as a strategy for the heterogenization of homogeneous catalysts. The obtained materials were characterized by spectroscopic techniques, mostly UV/Vis, EPR, XANES and luminescence spectroscopy. SWy-2 and synthetic Laponite clays were used for the immobilization of two different complexes that have previously shown catalytic activity in the dismutation of superoxide radicals, and disproportionation of hydrogen peroxide. The obtained results indicated the occurrence of an intriguing intramolecular redox process involving copper and the imine ligand at the surface of the clays. These studies are supported by computational calculations.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010001000025Schiff base-copper complexessmectite claysDFT calculation |
| spellingShingle | Patrícia M. Dias Lilian Kinouti Vera R. L. Constantino Ana M. D. C. Ferreira Marcos B. Gonçalves Rafael R. do Nascimento Helena M. Petrilli Marília Caldas Regina C. G. Frem Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays Química Nova Schiff base-copper complexes smectite clays DFT calculation |
| title | Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays |
| title_full | Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays |
| title_fullStr | Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays |
| title_full_unstemmed | Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays |
| title_short | Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays |
| title_sort | spectroscopic characterization of schiff base copper complexes immobilized in smectite clays |
| topic | Schiff base-copper complexes smectite clays DFT calculation |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010001000025 |
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