Proton Transfer in Solid State: Mechanochemical Reactions of Imidazole with Metallic Oxides

Mechanochemical reactions of crystalline imidazole with 23 metallic oxides have been studied by milling in a mortar and in ball mill vibrators of low and high mechanical intensity. The reactions were monitored by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) techniques....

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Bibliographic Details
Published in:Journal of solid state chemistry 1999-11, Vol.147 (2), p.561-564
Main Authors: Fernández-Bertrán, José, Castellanos-Serra, Lila, Yee-Madeira, H., Reguera, Edilso
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Heterocyclic compounds
Heterocyclic compounds with several n hetero atoms in the same ring, in separated rings or in fused rings
Organic chemistry
Preparations and properties
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Summary:Mechanochemical reactions of crystalline imidazole with 23 metallic oxides have been studied by milling in a mortar and in ball mill vibrators of low and high mechanical intensity. The reactions were monitored by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) techniques. ZnO, HgO, Ag2O, and Cu2O react rather readily in the mortar, forming the corresponding imidazolates but CdO, Ga2O3, and In2O3 require intense mechanical milling to transform. CuO and NiO do not react immediately but turn bluish after a few months of aging. The oxides of Mg(II), Ca(II), Be(II), Al(III), Fe(II), Co(II), Co(III), Pb(II), Eu(III), Ce(III), Bi(III), Ti(IV), Zr(IV), and Sn(IV) are inert to imidazole even on strong milling for several hours.
ISSN:0022-4596
1095-726X
DOI:10.1006/jssc.1999.8417