4 Cu 0.260089461035384 -0.123240257749175 -0.177695347537356 Zr 1.784607123775581 1.046483417723913 -0.232275506901411 Cu 1.277156866889753 -0.187297320635410 1.431988940959870 Zr 0.118939421408867 1.229569383213966 1.350147509236840