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Local structures around the Rb+ion in K2RbC60and KRb2C60studied by Rb K-edge EXAFS

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
255
Identifiers
DOI: 10.1016/0009-2614(96)00324-7

Abstract

Abstract Rb K-edge EXAFS has been studied for K 2RbC 60 at 21 and 39 K and for KRb 2C 60 at 10 and 27 K. It is shown that the Rb + ions in K 2RbC 60 occupy the center of the octahedral site, contrary to a previous report based on Rb K-edge EXAFS at room temperature that the Rb + ions are off-centered. It is also found that the Rb + ions in KRb 2C 60 occupy the octahedral and two tetrahedral sites.

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