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Step‐by‐Step Assembly of Trivacant Tungstosilicates: Synthesis and Characterization of Tetrameric Anions
Author(s) -
LeclercLaronze Nathalie,
Haouas Mohamed,
Marrot Jérôme,
Taulelle Francis,
Hervé Gilbert
Publication year - 2005
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.200502441
Subject(s) - monomer , silicic acid , electrophile , ring (chemistry) , content (measure theory) , characterization (materials science) , chemistry , silicic , association (psychology) , computer science , combinatorial chemistry , crystallography , biochemistry , nanotechnology , organic chemistry , geology , geochemistry , philosophy , materials science , mathematics , epistemology , mathematical analysis , polymer , volcano , catalysis
Tungstosilicate building blocks : Two dimeric anions, α‐[{K(H 2 O) 2 }Si 2 W 18 O 66 ] 15− , obtained by self‐association of the monomeric species [SiW 9 O 34 ] 10− upon acidification, can be connected directly (see picture). However, in the presence of silicic acid the anions are linked through an electrophilic [Si 4 O 4 ] 8+ ring.