data_global _amcsd_formula_title 'H2 Na5 O15 P3 V2' loop_ _publ_author_name 'Benhamada L' 'Grandin A' 'Borel M' 'Leclaire A' 'Leblanc M' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 96 _journal_year 1992 _journal_page_first 390 _journal_page_last 396 _publ_section_title ; Na5 V2 P3 O14 . H2 O, a tetravalent vanadium phosphate with alayer structure and a pure pyramidal coordination of V(IV) _cod_database_code 1000472 ; _database_code_amcsd 0013726 _chemical_formula_sum 'V2 P3 Na5 O15' _cell_length_a 6.3089 _cell_length_b 20.10379 _cell_length_c 5.1172 _cell_angle_alpha 90 _cell_angle_beta 91.134 _cell_angle_gamma 90 _cell_volume 648.902 _exptl_crystal_density_diffrn 2.814 _symmetry_space_group_name_H-M 'C 1 m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z V1 0.50000 0.15103 0.50000 P1 -0.00300 0.18560 0.51530 P2 0.65070 0.00000 0.55800 Na1 0.83200 0.08580 0.02800 Na2 0.25460 0.24010 -0.00400 Na3 0.17900 0.00000 0.61400 O1 0.24400 0.00000 0.11500 O2 -0.01500 0.18870 0.22400 O3 0.50100 0.15420 0.21000 O4 0.19600 0.14760 0.62200 O5 0.50200 0.24410 0.64400 O6 0.80300 0.14920 0.63400 O7 0.50300 0.05990 0.63200 O8 0.84700 0.00000 0.73400 O9 0.69900 0.00000 0.27300