Ca2 Ho O6 Ru Battle P, Jones C, Studer F Journal of Solid State Chemistry 90 (1991) 302-312 The crystal and magnetic structures of Ca2NdRuO6, Ca2HoRuO6 and Sr2ErRuO6 _cod_database_code 1001476 _database_code_amcsd 0013702 5.4991 5.7725 7.9381 90 90.18 90 P2_1/n atom x y z occ Ca1 .5167 .5620 .2555 .73 Ho1 .5167 .5620 .2555 .27 Ca2 0 .5 0 .54 Ho2 0 .5 0 .46 O1 .2123 .1788 -.0545 O2 .3277 .7182 -.0678 O3 .3835 -.0518 .2303 Ru1 .5 0 0