data_global _amcsd_formula_title 'Cu2 O5 Tm2' loop_ _publ_author_name 'Garcia-Munoz J' 'Rodriguez-Carvajal J' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 115 _journal_year 1995 _journal_page_first 324 _journal_page_last 331 _publ_section_title ; Structural characterization of R2 Cu2 O5 (R=Yb,Tm,Er,Y and Ho) oxides by neutron diffraction _cod_database_code 1006086 ; _database_code_amcsd 0013847 _chemical_formula_sum 'Tm2 Cu2 O5' _cell_length_a 10.7353 _cell_length_b 3.4575 _cell_length_c 12.3704 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 459.156 _exptl_crystal_density_diffrn 7.883 _symmetry_space_group_name_H-M 'P n a 21' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,1/2+z' '-x,-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Tm1 0.20800 0.23400 0.00000 Tm2 0.04000 0.22500 0.33080 Cu1 0.98920 0.65000 0.11400 Cu2 0.25980 0.67200 0.21600 O1 0.17300 0.72400 0.35800 O2 0.32300 0.72200 0.06500 O3 0.12700 0.30400 0.16700 O4 0.42800 0.77600 0.26200 O5 0.42400 0.22800 0.47700