杜瓦苯
杜瓦苯（Dewar Benzene）是苯的价键异构体之一。其标准命名为：双环[2.2.0]己-2,5-二烯，为英国化学家詹姆斯·杜瓦于1867年提出的苯的可能结构，故命名为杜瓦苯。
Dewar benzene
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Dewar benzene 杜瓦苯
1917.PNG)
Dewar benzene 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 1867. 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.
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