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Assembly of Tungsten‐Oxide‐Based Pentagonal Motifs in Solution Leads to Nanoscale {W 48 }, {W 56 }, and {W 92 } Polyoxometalate Clusters
Author(s) -
Zhan CaiHong,
Winter Ross S.,
Zheng Qi,
Yan Jun,
Cameron Jamie M.,
Long DeLiang,
Cronin Leroy
Publication year - 2015
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.201506170
Subject(s) - polyoxometalate , tungsten , tungsten oxide , oxide , cluster (spacecraft) , crystallography , nanoscopic scale , transition metal , metal , physics , chemistry , materials science , chemical physics , nanotechnology , computer science , catalysis , biochemistry , organic chemistry , programming language
We report an approach to synthesize molecular tungsten‐oxide‐based pentagonal building blocks, in a new {W 21 O 72 } unit, and show how this leads to a family of gigantic molecular architectures including [H 12 W 48 O 164 ] 28− {W 48 }, [H 20 W 56 O 190 ] 24− {W 56 }, and [H 12 W 92 O 311 ] 58− {W 92 }. The {W 48 } and {W 56 } clusters are both dimeric species incorporating two {W 21 } units and the {W 56 } species is the first example of a molecular metal oxide cluster containing a chiral “double‐stranded” motif which is stable in solution as confirmed by mass spectrometry. The {W 92 } anion having four {W 21 } units is one of the largest transition metal substituted isopolyoxotungstates known.