The Construction of High-Nuclearity Isopolyoxoniobates with Pentagonal Building Blocks: [HNb27O76]16− and [H10Nb31O93(CO3)]23

The Construction of High-Nuclearity Isopolyoxoniobates with Pentagonal Building Blocks: [HNb27O76]16− and [H10Nb31O93(CO3)]23

Big, bigger, biggest: Polyoxoniobate anions [HNb27O76]16− and [H10Nb31O92(CO3)]23− incorporate pentagonal Nb(Nb)5 building blocks; the central Nb ion is seven‐coordinate within the clusters. The Nb27 species was observed using ESI‐MS, thus demonstrating some solution stability; the Nb31 species is c...

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Veröffentlicht in:Angewandte Chemie International Edition 2010-01, Vol.49 (1), p.113-116
Hauptverfasser: Tsunashima, Ryo, Long, De-Liang, Miras, Haralampos N., Gabb, David, Pradeep, Chullikkattil P., Cronin, Leroy
Format: Artikel
Sprache:eng
Schlagworte:
Crystallography, X-Ray
framework materials
mass spectrometry
Molecular Conformation
niobium
Niobium - chemistry
Organometallic Compounds - chemistry
Oxides - chemistry
polyoxometalates
self-assembly
Spectrometry, Mass, Electrospray Ionization
Tungsten Compounds - chemistry
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Zusammenfassung:Big, bigger, biggest: Polyoxoniobate anions [HNb27O76]16− and [H10Nb31O92(CO3)]23− incorporate pentagonal Nb(Nb)5 building blocks; the central Nb ion is seven‐coordinate within the clusters. The Nb27 species was observed using ESI‐MS, thus demonstrating some solution stability; the Nb31 species is chiral and incorporates a carbonate ligand in the outer section of the cluster. The two species are the largest polyoxoniobates reported to date.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200903970