V2Se: a novel antifluorite-type cubic phase with a metal–metal bonding

A new antifluorite-type (Li2O-type) cubic compound, V2Se, has been synthesized for the first time by changing the amount of selenium in chemical vapor transport. The vanadium-based cubic phase studied here reveals a metal–metal bonding feature in the electronic band structure. This compound is the first example of an antifluorite-type cubic structure in a V–Se system.