data_global _chemical_name_mineral 'Brucite' loop_ _publ_author_name 'Parise J B' 'Leinenweber K' 'Weidner D J' 'Tan K' 'Von Dreele R B' _journal_name_full 'American Mineralogist' _journal_volume 79 _journal_year 1994 _journal_page_first 193 _journal_page_last 196 _publ_section_title ; Pressure-induced H bonding: Neutron diffraction study of brucite, Mg(OD)2, to 9.3 GPa P = 5.4 GPa ; _database_code_amcsd 0001639 _chemical_formula_sum 'Mg O2 D1.998' _cell_length_a 3.0728 _cell_length_b 3.0728 _cell_length_c 4.496 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 36.764 _exptl_crystal_density_diffrn 2.725 _symmetry_space_group_name_H-M 'P -3 m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,z' 'y,-x+y,-z' '-x,-x+y,-z' '-x+y,-x,z' '-x+y,y,z' '-x,-y,-z' 'y,x,-z' '-y,x-y,z' 'x,x-y,z' 'x-y,x,-z' 'x-y,-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 Mg 0.00000 0.00000 0.00000 1.00000 0.01000 O 0.33333 0.66667 0.22900 1.00000 0.01000 D 0.38900 0.77800 0.43500 0.33300 0.01200