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The Yellow Color of Silver‐Containing Zeolite A
Author(s) -
Seifert Roland,
Kunzmann Andreas,
Calzaferri Gion
Publication year - 1998
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19980619)37:11<1521::aid-anie1521>3.0.co;2-v
Subject(s) - zeolite , ion , chemistry , photochemistry , oxygen , oxygen atom , inorganic chemistry , crystallography , molecule , organic chemistry , catalysis
Not the Ag clusters, but rather the O atoms are responsible for the yellow color of silver‐containing zeolite A. The reason for this has remained unclear since 1962. It is now shown that a charge‐transfer transition from the lattice oxygen atoms to the empty 5s orbital of the silver ions (shown schematically on the right) is responsible for the yellow coloring.