Stannocene

Stannocene is an organometallic compound with the formula Sn(C₅H₅)₂. It appears yellow-brown, and melts around 105 °C.

Chemically, stannocene is a metallocene that can be produced efficiently from cyclopentadienyl sodium and tin(II) chloride. Unlike in ferrocene the two cyclopentadienyl rings are not parallel.

Stannocene reacts with strong Lewis acids to give the cyclopentadienyltin(II) cation, SnC₅H
₅.