Chemistry:Octalene

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Octalene
Octalene.svg
Names
IUPAC name
Octalene
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
EC Number
  • 206-215-8
UNII
Properties
C14H12
Molar mass 180.250 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Tracking categories (test):

Octalene is a polycyclic hydrocarbon composed of two fused cyclooctatetraene rings.[1]

Anions

Octalene can be readily reduced by lithium to a dianion C
14
H2−
12
and, unusually for such a small molecule, a tetraanion C
14
H4−
12
.[2] The di-anion has its two negative charges in one ring, converting that ring into a 10-pi electron aromatic system similar to the di-anion of cyclooctatetraene. In the 18-pi electron tetra-anion, both rings effectively have access to 10 pi electrons, leading to a planar, bicyclic aromatic structure analogous to that of naphthalene.

See also

References

  1. Koseki, S.; Kataoka, M.; Hanamura, M.; Nakajima, T.; Toyota, A. (1984). "Theoretical studies on octalene: the planar and nonplanar structures and the isomerization reactions among the nonplanar structures". The Journal of Organic Chemistry 49 (16): 2988–2993. doi:10.1021/jo00190a026. 
  2. Müllen, K., Oth, J. F. M., Engels, H.-W. and Vogel, E. (1979), Dianion and Tetraanion Octalene. Angew. Chem. Int. Ed. Engl., 18: 229–231. doi:10.1002/anie.197902291