Plumbocene

Plumbocene is an organometallic compound of lead with the chemical formula Pb(C₅H₅)₂. It is a member of the class of metallocenes. It is soluble in benzene, acetone, ether, and petroleum ether, and insoluble in water. Plumbocene is stable in cold water.^[1]

Plumbocene

Names
IUPAC name Plumbocene
Other names Lead(II) bis(pentamethylcyclopentadienide)
Identifiers
CAS Number	1294-74-2 Y
3D model (JSmol)	Interactive image
PubChem CID	15344874
InChI InChI=1S/2C5H5.Pb/c2*1-2-4-5-3-1;/h2*1-5H; Key: YBXJFWRGENDPSO-UHFFFAOYSA-N
SMILES C1=CC(C=C1)[Pb]C2C=CC=C2
Properties
Chemical formula	Pb(C5H5)2
Molar mass	337.4 g·mol−1
Boiling point	150 °C (302 °F; 423 K) at 10−7 mmHg[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Gaseous plumbocene is a bent metallocene with angle 135°, similar to stannocene. But crystalline plumbocene can instead adopt a chain structure, similar to manganocene.^[2]

Plumbocene is not commercially available. It may be synthesized by the reaction of sodium cyclopentadienide with a lead(II) source such as lead(II) nitrate^[1] or lead(II) iodide.^[3]

The decamethyl analog, PbCp*₂ (decamethylplumbocene), and the half-sandwich complexes, Cp*Pb[BF₄] (lead(II) pentamethylcyclopentadienide tetrafluoroborate) and Cp*PbCl (lead(II) chloride pentamethylcyclopentadienide), are known as well.^[4]