δ Aromaticity in [Ta3O3]

Low‐lying electronic transitions are observed in the photoelectron spectra of [Ta3O3]−, and ab initio calculations show that the cluster has a planar D3h triangular structure. Totally delocalized, multicenter metal–metal bonding renders δ aromaticity for [Ta3O3]− (see picture). This is the first δ‐a...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2007-01, Vol.46 (23), p.4277-4280
Main Authors: Zhai, Hua-Jin, Averkiev, Boris B., Zubarev, Dmitry Yu, Wang, Lai-Sheng, Boldyrev, Alexander I.
Format: Article
Language:English
Subjects:
ab initio calculations
aromaticity
cluster compounds
metal-metal interactions
photoelectron spectroscopy
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Summary:Low‐lying electronic transitions are observed in the photoelectron spectra of [Ta3O3]−, and ab initio calculations show that the cluster has a planar D3h triangular structure. Totally delocalized, multicenter metal–metal bonding renders δ aromaticity for [Ta3O3]− (see picture). This is the first δ‐aromatic molecule to be confirmed both experimentally and theoretically.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200700442