Table 1. Crystal data and structure refinement for BBCPO. Empirical formulaBa2Bi2Cu(PO4)4 Formula weight 1136.06 Temperature/K 295.88(10) Space group Pnma a/Å 8.9934(13) b/Å 16.045(2) c/Å 9.907(2) Volume/Å3 1429.5(4) Z 4 ρcalcg/cm3 5.279 μ/mm−1 31.966 F(000) 198...