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Names | |||
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Preferred IUPAC name
Tetracyclo[2.2.0.02,6.03,5]hexane[1] | |||
Identifiers | |||
3D model (JSmol)
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ChemSpider | |||
PubChem CID
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CompTox Dashboard (EPA)
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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]
The name prismane is not longer recommended.