Effect of different dimethylphenols on the interactions with Ni2+-exchanged montmorillonite

The influence of different steric and electronic properties of 2,4-; 2,5-; and 3,5- dimethylphenols (2,4-; 2,5-; and 3,5- DMP, respectively) on Ni2+-montmorillonite (Ni2+-MMT) (I) were studied. The results of X-ray diffraction show that the observed changes of the basal spacing were due to the inter...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2013-05, Vol.112 (2), p.1053-1058
Main Authors: Janik, R, Jona, E, Pajtasova, M, OndruA!ova, D, Loduhova, M, Pavlik, V, Durny, R, Mojumdar, S C
Format: Article
Language:English
Subjects:
Bands
Derivatives
Diffraction
Interlayers
Montmorillonite
Phenol
Silicates
Spectra
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Summary:The influence of different steric and electronic properties of 2,4-; 2,5-; and 3,5- dimethylphenols (2,4-; 2,5-; and 3,5- DMP, respectively) on Ni2+-montmorillonite (Ni2+-MMT) (I) were studied. The results of X-ray diffraction show that the observed changes of the basal spacing were due to the intercalation of phenol derivatives into the interlayer space of montmorillonite. The existence of one peak at ~1,633 cm?1 in the IR spectra of sample Ni2+-MMT + 2,4-DMP (II) and Ni2+-MMT + 2,5-DMP (III) and shift of this peaks to higher frequency indicate that 2,4-DMP and 2,5-DMP exist in the interlayer space of Ni2+-MMT in the protonated form. The two bands at ~1,622 and 1,597 cm?1 in the sample Ni2+-MMT + 3,5-DMP (IV) indicate that 3,5-DMP may be also directly coordinated to Ni2+ cations. The different interactions of phenol derivatives in the silicate interlayers will be connected with different position of methyl groups on the phenol ring.
ISSN:1388-6150
1572-8943
DOI:10.1007/s10973-013-2990-x