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The Aromaticity of the Stannole Dianion

✍ Scribed by Masaichi Saito; Ryuta Haga; Michikazu Yoshioka; Kazuya Ishimura; Shigeru Nagase

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
119 KB
Volume
44
Category
Article
ISSN
0044-8249

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## Abstract Heptalene – a very unstable compound – can be reduced by lithium at βˆ’80Β° into its dianion. ^1^H‐ and ^13^C‐NMR. studies indicate that this dianion, contrary to the neutral molecule, has its π‐bonds delocalized. The magnetic field induces in this species a large diamagnetic ring current.