Electron spin resonance study of donor-acceptor sites in Zr-montmorillonite
| Autor: | F. Figueras, J. V. Zanchetta, A. Matrod-Bashi |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
chemistry.chemical_classification
Ion exchange Radical Mineralogy 020101 civil engineering 02 engineering and technology Electron acceptor Tetracyanoethylene 010502 geochemistry & geophysics 01 natural sciences Electric charge 0201 civil engineering law.invention chemistry.chemical_compound Crystallography Montmorillonite chemistry Geochemistry and Petrology law Electron paramagnetic resonance Perylene 0105 earth and related environmental sciences |
| Zdroj: | Clay Minerals. 27:343-351 |
| ISSN: | 1471-8030 0009-8558 |
| DOI: | 10.1180/claymin.1992.027.3.07 |
| Popis: | The charge transfer process that occurs in two samples of Wyoming montmorillonite of different grain size pillared with Zr by interaction with perylene (Pe) and tetracyanoethylene (TCNE) has been studied. These smectites are strongly affected by the exchange of Zr and appear to be strong electron acceptors and weak donors. The ESR results show that their ability to form charge transfer radicals is related to the details of preparation, which most probably control the accessibility of Pe and TCNE to the internal surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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