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IUPAC name
Dodecacyclo[11.10.0.01,5.02,13.02,21.03,18.06,15.08,23.09,14.011,20.012,14.012,17]tricosane
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Identifiers | |
3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C23H24 | |
Molar mass | 300.445 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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Dimethanospiro[2.2]octaplane is a hypothetical saturated hydrocarbon that is expected to have a carbon atom in with a stable, unusual square-planar coordination[1] rather than the usual tetrahedral geometry of a carbon atom with four bonds.
An octaplane contains a central carbon atom is surrounded by four carbon atoms, which are held in place by perpendicular links to two cyclooctane rings above and below.[2] The parent structure octaplane itself is expected to have a very low ionization potential and a square–planar geometry as the monocation,[2] however calculations on the neutral compound found that the central carbon would distort to a square–pyramidal geometry.[1]
In dimethanospiro[2.2]octaplane, two pairs of the carbons attached to the central one are bonded to each other to make a spiropentane, and there are two methylene linkages between the two cyclooctane rings.[1][3][4]