Formation of coordination compounds with aniline in the interlayer space of Ca2+-, Cu2+- and Fe3+-exchanged montmorillonite
The influence of Ca 2+ -, Cu 2+ - and Fe 3+ -exchanged montmorillonite (MMT) on the type of interaction with aniline in the interlayer space of MMT has been studied by means of X-ray powder diffraction and infrared spectra. Results of X-ray diffraction showed that aniline was successfully intercalat...
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Veröffentlicht in: | Chemical papers 2016, Vol.70 (1), p.131-134 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The influence of Ca
2+
-, Cu
2+
- and Fe
3+
-exchanged montmorillonite (MMT) on the type of interaction with aniline in the interlayer space of MMT has been studied by means of X-ray powder diffraction and infrared spectra. Results of X-ray diffraction showed that aniline was successfully intercalated into the interlayer space of MMT. Based on IR spectra evaluation, aniline was indirectly coordinated through a water-bridge in Ca
2+
- and Fe
3+
-MMT and it was indirectly coordinated through a water-bridge as well as protonated in Cu
2+
-MMT (the spectrum of protonated aniline showed deformation and changes in the NH
3
+
absorption at approximately 1521 cm
−1
). It is important to point out that Cu
2+
-MMT indirect coordination and protonation occur simultaneously. |
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ISSN: | 0366-6352 1336-9075 |
DOI: | 10.1515/chempap-2015-0196 |