Optical spectroscopy on Se8 clusters and Se chains embedded in zeolite matrices

Autor:	A. Goldbach, M.-L. Saboungi
Rok vydání:	1997
Předmět:	Chemistry Phonon General Chemical Engineering Analytical chemistry Molecular sieve Condensed Matter::Materials Science Crystallography symbols.namesake Chalcogen Raman band symbols Absorption (chemistry) Zeolite Spectroscopy Raman spectroscopy
Zdroj:	Berichte der Bunsengesellschaft für physikalische Chemie. 101:1660-1664
ISSN:	0005-9021
DOI:	10.1002/bbpc.19971011121
Popis:	Incorporation of Se into the supercages of zeolite Y leads to formation of Se 8 rings and distorted Se chains with a ratio which is dictated by the nature of the zeolitic counter cations. Both rings and chains give rise to characteristic Raman and UV/vis absorption bands. In particular low frequency Raman bands are attributed to phonon localization in ordered segments of distorted chains.
Databáze:	OpenAIRE
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