data_global _amcsd_formula_title 'H Nb O5 Ti' loop_ _publ_author_name 'Rebbah A' 'Pannetier J' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 41 _journal_year 1982 _journal_page_first 57 _journal_page_last 62 _publ_section_title ; Localization of Hydrogen in the Layer Oxide H Ti Nb O5 _cod_database_code 1001206 ; _database_code_amcsd 0013461 _chemical_formula_sum 'H (Ti Nb) O5' _cell_length_a 6.534 _cell_length_b 3.777 _cell_length_c 16.675 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 411.521 _exptl_crystal_density_diffrn 3.580 _symmetry_space_group_name_H-M 'P n m a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-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 H1 0.40400 0.25000 0.19200 1.00000 Ti1 0.29100 0.25000 0.02400 0.77000 Nb1 0.29100 0.25000 0.02400 0.23000 Ti2 0.79400 0.25000 0.12200 0.23000 Nb2 0.79400 0.25000 0.12200 0.77000 O1 0.06900 0.25000 0.07700 1.00000 O2 0.64100 0.25000 -0.00800 1.00000 O3 0.46900 0.25000 0.13100 1.00000 O4 0.83300 0.25000 0.22400 1.00000 O5 0.23100 0.25000 0.90900 1.00000