data_30000105 loop_ _publ_author_name 'Mariela M. Nolasco' 'Pedro D. Vaz' 'Paulo Ribeiro-Claro' _publ_section_title ; Egyptian Blue (optimized, PBE) ; _journal_name_full 'To be published in Chem. Mat.' _chemical_formula_sum 'Ca Cu O10 Si4' _space_group_name_Hall 'P 4ab 2n -1ab' _space_group_name_H-M_alt 'P 4/n c c :1' _cell_angle_alpha 90.0000 _cell_angle_beta 90.0000 _cell_angle_gamma 90.0000 _cell_length_a 7.3766 _cell_length_b 7.3766 _cell_length_c 15.4347 _cell_volume 839.867 _tcod_database_code 30000105 _cod_hold_until_date 2023-05-29 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z ? ? ? ?