CpNa
CpNa refers to sodium cyclopentadienide, the sodium salt of cyclopentadiene with the formula NaC5H5. The Cp− anion is the aromatic cyclopentadienyl ring bearing a negative charge, making it a versatile ligand in organometallic chemistry. CpNa is typically a white to off-white solid that is highly reactive toward moisture and oxygen and is usually handled under inert atmosphere.
CpNa is prepared by deprotonation of cyclopentadiene (CpH) with a sodium base such as sodium hydride, sodium
As a strong organosodium reagent, CpNa serves as a base and as a nucleophilic Cp− source in
CpNa is mainly employed as a precursor in the synthesis of organometallic and coordination compounds, especially
CpNa is moisture- and air-sensitive and should be handled with appropriate inert-atmosphere techniques. Contact with water