data_global _amcsd_formula_title 'Ga4GeO8' loop_ _publ_author_name 'Kahn A' 'Agafonov V' 'Michel D' 'Perez Y Jorba M' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 65 _journal_year 1986 _journal_page_first 377 _journal_page_last 382 _publ_section_title ; New gallium germanates with tunnel structures alpha Ga4GeO8 and Ga4Ge3O12 _cod_database_code 1001682 ; _database_code_amcsd 0013589 _chemical_formula_sum 'Ge Ga4 O8' _cell_length_a 12.169 _cell_length_b 3.005 _cell_length_c 9.414 _cell_angle_alpha 90 _cell_angle_beta 125.06 _cell_angle_gamma 90 _cell_volume 281.786 _exptl_crystal_density_diffrn 5.651 _symmetry_space_group_name_H-M 'C 1 2/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' '-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 Ge1 0.00000 0.00000 0.00000 Ga1 0.75760 0.00000 0.35960 Ga2 0.46210 0.00000 0.28090 O1 0.16270 0.00000 0.21830 O2 0.64460 0.00000 0.46180 O3 0.44030 0.00000 0.07380 O4 0.89120 0.00000 0.30640