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Are kekulene, coronene, and corannulene tetraanion superaromatic? Theoretical examination using hardness indices by Zhongxiang Zhou is a Chemistry article available to read on EtoBox.
What is Are kekulene, coronene, and corannulene tetraanion superaromatic? Theoretical examination using hardness indices about?
## Abstract The superaromaticity concept is examined and developed, taking into account what is known about aromaticity. Three new hardness indices indices are defined, and shown to be excellent parameters for characterizing superaromaticity. High superaromaticity indicates significant global annulenoid conjugation relative to local benzenoid conjugation in circularly annealed benzenoid molecules. Kekulene, coronene and corannulene tetraanion all are predicted to be superaromatic. The prediction for the corannulene tetraanion strongly supports the “annulene‐within‐an‐annulene” structure derived from NMR data.
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- Author
- Zhongxiang Zhou
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0894-3230)
- Published
- 1995
- Language
- EN
- Field
- Chemistry (Physical Sciences)