ISSN:
1588-2837
Keywords:
Indium lattice cations
;
zeolites
;
IR spectroscopy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract In+ cations introduced by reductive solid-state ion exchange into zeolites (Y, ZSM-5, mordenite) and cationic InO+ species created by oxidation of the incorporated univalent cations were found to be detectable and distinguishable by IR spectroscopy using pyridine as probe molecule. Relatively weak interactions of In+ lattice cations with pyridine give rise, after degassing at temperatures not higher than 370 K, to typical bands at 1446 and 1599 cm−1. After oxidation to InO+, these bands are shifted to 1452 and 1610 cm−1, being significantly more resistant towards degassing. Because of restrictions in the accessibility of InO+ to pyridine, the respective bands are absent in the spectra of mordenite.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02475524
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