Illustrated Glossary of Organic Chemistry - Cyclopentadiene (cyclopenta-1,3-diene)

Illustrated Glossary of Organic Chemistry

Cyclopenta diene (cyclopenta-1,3-diene): A conjugated diene hydrocarbon of molecular formula C₅H₆. Deprotonation of cyclopenta diene produces the highly stable cyclopentadienyl anion, which is aromatic. Removal of hydride ion from cyclopenta diene produces the highly unstable cyclopentadienyl cation, which is antiaromatic.

Molecular Structure of Cyclopenta diene


Lewis structure		Ball and spoke		Space filling model		Molecular model kit

Related terms: Cp, butadiene, cyclopentane, benzene, cyclobutadiene, cyclooctatetraene, ferrocene
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