Dewar benzene

Dewar benzene
Skeletal formula
The conjoined cyclobutene rings of Dewar benzene form an obtuse angle.
Ball-and-stick model
Names
Preferred IUPAC name
Bicyclo[2.2.0]hexa-2,5-diene
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/C6H6/c1-2-6-4-3-5(1)6/h1-6H checkY
    Key: CTLSARLLLBZBRV-UHFFFAOYSA-N checkY
  • InChI=1/C6H6/c1-2-6-4-3-5(1)6/h1-6H
    Key: CTLSARLLLBZBRV-UHFFFAOYAO
  • C\1=C\C2/C=C\C/12
Properties
C6H6
Molar mass 78.1 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dewar benzene (also spelled dewarbenzene) or bicyclo[2.2.0]hexa-2,5-diene is a bicyclic isomer of benzene with the molecular formula C6H6. The compound is named after James Dewar who included this structure in a list of possible C6H6 structures in 1869.[1] However, he did not propose it as the structure of benzene, and in fact he supported the correct structure previously proposed by August Kekulé in 1865.[2]

  1. ^ Cite error: The named reference Dewar was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Baker was invoked but never defined (see the help page).