Will selenium react or bond, ionic or covalent, with vanadium?
The ASM Alloy Phase Diagram Database (at asminternational.org if you have access) shows that $V_{2}Se_{9}$, $V_{5}Se_{8}$, $V_{3}Se_{4}$ $V_{5}Se_{4}$, and $VSe$ are all accepted stable phases in the Se-V binary system.