Wiktionary
vanadocene
n. (context organic compound English) The metallocene containing a vanadium atom
Wikipedia
Vanadocene
Vanadocene, bis(η-cyclopentadienyl) vanadium, is the organometallic compound with the formula V(CH), commonly abbreviated CpV. It is a violet crystalline, paramagnetic solid. Vanadocene has relatively limited practical use, but it has been extensively studied.