Dewar benzene

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Science and technology

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What Wikipedia says

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.

Excerpt from the Wikipedia article “Dewar benzene”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: User:Innerstream, Public domain, via Wikimedia Commons.