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Structural Control on the Nanomolecular Scale: Self‐Assembly of the Polyoxotungstate Wheel [{β ‐ Ti 2 SiW 10 O 39 } 4 ] 24−
Author(s) -
Hussain Firasat,
Bassil Bassem S.,
Bi LiHua,
Reicke Markus,
Kortz Ulrich
Publication year - 2004
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.200454203
Subject(s) - stack (abstract data type) , titanium , chemistry , crystallography , mechanism (biology) , stereochemistry , materials science , physics , computer science , organic chemistry , quantum mechanics , programming language
Wheel meet again : The titanium( IV ) substituted [{β ‐ Ti 2 SiW 10 O 39 } 4 ] 24− ( 1 ) consists of four β ‐ Keggin moieties that are linked via Ti‐O‐Ti bonds leading to a cyclic arrangement (see picture; red WO 6 , green TiO 6 , and blue SiO 4 ). The wheels stack to give a tunnel‐like structure. Synthesis of 1 is from the dilacunary precursor [γ ‐ SiW 10 O 36 ] 8− and gives insights into the mechanism of formation of polyoxoanion assemblies.