In chemistry, the cyclopentadienyl anion or cyclopentadienide is an aromatic species with a formula of [C. 5H. 5]−. and abbreviated as Cp−. [1] . It is formed by the deprotonation of cyclopentadiene. The cyclopentadienyl anion is a ligand which binds to a …
A cyclopentadienyl complex is a coordination complex of a metal and cyclopentadienyl groups (C. 5H−. 5, abbreviated as Cp−). Cyclopentadienyl ligands almost invariably bind to metals as a pentahapto (η5 -) bonding mode.
Cyclopentadienyl radical. Formula: C 5 H 5. Molecular weight: 65.0932. IUPAC Standard InChI:InChI=1S/C5H5/c1-2-4-5-3-1/h1-5H Copy. IUPAC Standard InChIKey:HPYIUKIBUJFXII-UHFFFAOYSA-N Copy. CAS Registry Number: 2143-53-5.