(Cycloheptatrienyl)(cyclopentadienyl)vanadium is an organovanadium compound with the formula V(C<sub>5</sub>H<sub>5</sub>)(C<sub>7</sub>H<sub>7</sub>). It is a purple, paramagnetic, sublimable solid that is sensitive toward air. The structure has been confirmed by X-ray crystallography. This sandwich complex features cyclopentadienyl and cycloheptatrienyl ligands bound to vanadium. It was first prepared by heating a mixture of cycloheptatriene and cyclopentadienylvanadium tetracarbonyl. Many derivatives of trovacene are prepared by lithiation of the cyclopentadienyl ring.