4

Cu      0.260089461035384     -0.083972065165908     -0.177695347537356
Zr      1.784607123775581      1.046483417723913     -0.232275506901411
Cu      1.277156866889753     -0.187297320635410      1.431988940959870
Zr      0.118939421408867      1.229569383213966      1.350147509236840