cyclopentadienyl

Cyclopentadienyl can refer to

• Cyclopentadienyl anion, or cyclopentadienide, {{chem|[|C|5|H|5|]|−}}
• Cyclopentadienyl ligand
• Cyclopentadienyl radical, {{chem|[|C|5|H|5|]|}}^•
• Cyclopentadienyl cation, {{chem|[|C|5|H|5|]|+}}