Influence of the Fe3+–for – Al3+Octahedral Substitutions on the IR Spectra of Montmorillonite Minerals
- 1 October 1984
- journal article
- research article
- Published by Taylor & Francis in Spectroscopy Letters
- Vol. 17 (10) , 579-590
- https://doi.org/10.1080/00387018408072640
Abstract
The influence of octahedral replacement of Al3+ by Fe3+ on the infrared spectra of montmorillonites in the domain of OH vibrations is presented. The obtained results suggest that in the domain of OH-bending vibration, the absorption band from 870 cm−1 (Al3+ -OH-Fe3+) can not be detected in the spectra of montmorillonites when the octahedral Fe3+ content is below 0.10-0.15 (per half unit cell) In the domain of OH-stretchtng, the increasing Fe3+ -for-Al3+ substitution in the dioctahedral series of smectites causes a continous shift of the absorption band ascribed to M3+ - OH - M3+ vibrations to lower frequencies.Keywords
This publication has 7 references indexed in Scilit:
- Effect of Swelling on the Infrared Absorption Spectrum of MontmorilloniteClays and Clay Minerals, 1976
- A MÖssbauer and I.R. Spectroscopic Study of the Structure of NontroniteClays and Clay Minerals, 1976
- The Infrared Spectra of MineralsPublished by Mineralogical Society ,1974
- INTERPRETATION OF INFRARED SPECTRA OF SOIL MINERALSSoil Science, 1971
- Infrared Absorption Spectrometry in Clay StudiesClays and Clay Minerals, 1967
- The infra-red spectra of layer silicatesSpectrochimica Acta, 1964
- The Dehydroxylation and Rehydroxylation of Triphormic Dioctahedral Clay MineralsClay Minerals, 1962