Using density functional theory, we have investigated the structural, electronic and magnetic properties of infinitely periodic organometallic vanadium–anthracene ([V2Ant]∞) and [V4(BNAnt)2]∞ (where BNAnt is B–N analogue of anthracene) for their possible application in spintronics. From our calculations, we find that one-dimensional [V2Ant]∞ and [V4(BNAnt)2]∞ wires exhibit robust ferromagnetic half-metallic and metallic behavior, respectively. The finite sized V6Ant2 and V6(BNAnt)2 clusters are also found to exhibit efficient spin filter properties when coupled to graphene electrodes on either side.