data_global _chemical_name_mineral 'Bayerite' loop_ _publ_author_name 'Balan E' 'Blanchard M' 'Hochepied J-F' 'Lazzeri M' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 35 _journal_year 2008 _journal_page_first 279 _journal_page_last 285 _publ_section_title ; Surface modes in the infrared spectrum of hydrous minerals: the OH stretching modes of bayerite ; _database_code_amcsd 0009134 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Al O3 H3' _cell_length_a 5.096 _cell_length_b 8.729 _cell_length_c 9.489 _cell_angle_alpha 90 _cell_angle_beta 90.26 _cell_angle_gamma 90 _cell_volume 422.095 _exptl_crystal_density_diffrn 2.455 _symmetry_space_group_name_H-M 'P 1 21/n 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Al1 0.52490 0.16470 -0.00350 Al2 0.03030 0.33170 -0.00380 O1 0.12700 0.50800 0.38660 O2 0.35030 0.32710 0.10770 O3 0.71680 0.31200 0.38530 O4 0.87360 0.49060 0.11220 O5 0.65410 0.67690 0.39810 O6 0.28110 0.68710 0.11470 H1 0.04260 0.50480 0.29230 H2 0.31550 0.29410 0.20590 H3 0.75480 0.27590 0.28870 H4 0.68770 0.46360 0.12480 H5 0.55230 0.58170 0.38670 H6 0.35910 0.59070 0.14580