data_global _amcsd_formula_title 'Rb(NpO2)(PO4)(H2O)3' loop_ _publ_author_name 'Forbes T Z' 'Burns P C' _journal_name_full 'The Canadian Mineralogist' _journal_volume 45 _journal_year 2007 _journal_page_first 471 _journal_page_last 477 _publ_section_title ; The crystal structures of X(NpO2)(PO4)(H2O)3 (X = K+, Na+, Rb+, NH4+) and their relationship to the autunite group Sample: RbP1 ; _database_code_amcsd 0006148 _chemical_formula_sum '(Rb Np) P O9 H6' _cell_length_a 7.031 _cell_length_b 7.031 _cell_length_c 17.87 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 883.403 _exptl_crystal_density_diffrn 3.786 _symmetry_space_group_name_H-M 'P 4/n c c' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2-y,1/2-x,1/2+z' '1/2+y,1/2+x,1/2-z' '1/2+y,-x,-z' '1/2-y,x,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '1/2+x,1/2+y,-z' '1/2-x,1/2-y,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,1/2+x,-z' 'y,1/2-x,z' '1/2-x,y,1/2+z' '1/2+x,-y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv Rb 0.52220 0.17610 -0.18540 0.25000 0.06900 Np 0.25000 0.25000 0.04920 1.00000 0.02200 P 0.75000 0.25000 0.00000 1.00000 0.02200 O1 0.25000 0.25000 -0.04940 1.00000 0.02900 O2 0.25000 0.25000 0.14750 1.00000 0.04200 O3 0.57540 0.28260 0.05240 1.00000 0.03000 Wat4 0.52220 0.17610 -0.18540 0.75000 0.06900