UV-visible transmission microscope spectrophotometry on X-type zeolites: Part II. Motion of benzene and toluene within zeolite cavities

Comparative UV spectroscopic investigations on benzene- and toluene-loaded zeolite NaX and NiNaX single crystals were carried out. Absorption spectra of both aromatic compounds in different environments were obtained employing the method of microcomputer-controlled microscope spectrophotometry (MMSP...

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Bibliographic Details
Published inJournal of molecular catalysis Vol. 24; no. 3; pp. 281 - 308
Main Authors Hass, E.C., Plath, P.J., Weigel, H.W.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1984
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Summary:Comparative UV spectroscopic investigations on benzene- and toluene-loaded zeolite NaX and NiNaX single crystals were carried out. Absorption spectra of both aromatic compounds in different environments were obtained employing the method of microcomputer-controlled microscope spectrophotometry (MMSP) and of microcomputer-driven photon counting for spectroscopy (MPS). Additional high resolution spectra showed a rotational fine structure superimposed on single vibronic bands of benzene and toluene. A quantum theoretical analysis of the spectra indicates the formation of Na +- and Ni 2+-aryl complexes, but a stronger interaction between the aromatic system and the zeolite lattice in the case of NiNaX zeolites.
ISSN:0304-5102
DOI:10.1016/0304-5102(84)85117-2