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Restraining Symmetry in the Formation of Small Polyoxomolybdates: Building Blocks of Unprecedented Topology Resulting From “Shrink‐Wrapping” [H 2 Mo 16 O 52 ] 10− ‐Type Clusters
Author(s) -
Long DeLiang,
Kögerler Paul,
Farrugia Louis J.,
Cronin Leroy
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.200351615
Subject(s) - cluster (spacecraft) , topology (electrical circuits) , electrophile , valence (chemistry) , symmetry (geometry) , protonation , physics , chemistry , computer science , mathematics , geometry , combinatorics , quantum mechanics , ion , biochemistry , programming language , catalysis
A mixed‐valence polyoxomolybdate cluster [H 2 Mo VI 12 Mo V 4 O 52 ] 10− was isolated by a new “shrink‐wrapping” approach to trap clusters that display low symmetry and nonspherical topology (see scheme; HMTAH=protonated hexamethylenetetraamine). The unprecedented cluster topology results from the restriction of the reorganization of the cluster framework to more symmetrical clusters, yet it reacts with electrophiles, such as Fe II .