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Alkali‐Metal‐Controlled Self‐Assembly of Crown‐Shaped Ring Complexes of Lanthanide/[α‐AsW 9 O 33 ] 9− : [K⊂{Eu(H 2 O) 2 (α‐AsW 9 O 33 )} 6 ] 35− and [Cs⊂{Eu(H 2 O) 2 (α‐AsW 9 O 33 )} 4 ] 23−
Author(s) -
Fukaya Keisuke,
Yamase Toshihiro
Publication year - 2003
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/anie.200390180
Subject(s) - lanthanide , alkali metal , crystallography , ring (chemistry) , chemistry , ion , metal , self assembly , stereochemistry , materials science , nanotechnology , organic chemistry
Crowning glory: The L‐shaped [Ln(H 2 O) 2 (α‐AsW 9 O 33 )] 6− (Ln=lanthanide) building unit provides an elegant approach to develop crown‐shaped structures of [{Ln(H 2 O) 2 (α‐AsW 9 O 33 )} n ] 6 n − ( n =even number of ≥4) which can encapsulate a cation. The watermill‐propeller structure, left, is a K + ion encapsulated by six [α‐AsW 9 O 33 ] 9− ligands, whereas the windmill structure, right, is a Cs + ion encapsulated by four [α‐AsW 9 O 33 ] 9− ligands.