Prismane

Prismane
Chemical structure of prismane
Chemical structure of prismane
Chemical structure of prismane
Chemical structure of prismane
CPK model of prismane
Names
Preferred IUPAC name
Tetracyclo[2.2.0.02,6.03,5]hexane[1]
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C6H6/c1-2-3(1)6-4(1)5(2)6/h1-6H checkY
    Key: RCJOMOPNGOSMJU-UHFFFAOYSA-N checkY
  • InChI=1/C6H6/c1-2-3(1)6-4(1)5(2)6/h1-6H
    Key: RCJOMOPNGOSMJU-UHFFFAOYAA
  • C12C3C1C4C2C34
Properties
C6H6
Molar mass 78.114 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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Prismane or 'Ladenburg benzene' is a polycyclic hydrocarbon with the formula C6H6. It is an isomer of benzene, specifically a valence isomer. Prismane is far less stable than benzene. The carbon (and hydrogen) atoms of the prismane molecule are arranged in the shape of a six-atom triangular prism—this compound is the parent and simplest member of the prismanes class of molecules. Albert Ladenburg proposed this structure for the compound now known as benzene.[2] The compound was not synthesized until 1973.[3]

  1. ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2013. p. 169. doi:10.1039/9781849733069-00130. ISBN 978-0-85404-182-4. The name prismane is not longer recommended.
  2. ^ Ladenburg A. (1869). "Bemerkungen zur aromatischen Theorie" (PDF). Chemische Berichte. 2: 140–2. doi:10.1002/cber.18690020171.
  3. ^ Katz T. J.; Acton N. (1973). "Synthesis of Prismane". Journal of the American Chemical Society. 95 (8): 2738–2739. doi:10.1021/ja00789a084.