data_global _chemical_name_mineral 'Behoite' loop_ _publ_author_name 'Jacobs H' 'Niemann A' 'Kockelmann W' _journal_name_full 'Zeitschrift fur Anorganische und Allgemeine Chemie' _journal_volume 631 _journal_year 2005 _journal_page_first 1247 _journal_page_last 1254 _publ_section_title ; Low temperature investigations of hydrogen bridge bonds in the hydroxides beta-Be(OH)2 and epsilon-Zn(OH)2 by Raman-spectroscopy as well as X-ray and neutron diffraction Sample: T = 245 K ; _database_code_amcsd 0015821 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Be O2 D2' _cell_length_a 4.5356 _cell_length_b 4.6317 _cell_length_c 7.0379 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 147.849 _exptl_crystal_density_diffrn 2.023 _symmetry_space_group_name_H-M 'P 21 21 21' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,1/2+y,1/2-z' '1/2+x,1/2-y,-z' '1/2-x,-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Be 0.03090 0.70700 0.62640 0.01520 O1 0.19220 0.10830 0.04270 0.01773 O2 0.15530 0.41570 0.72970 0.01520 D1 0.27130 0.09730 0.56010 0.02660 D2 0.35250 0.43270 0.77910 0.03040 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Be 0.01500 0.01300 0.01600 -0.00600 0.00600 -0.00600 O1 0.01700 0.01200 0.02600 -0.00700 0.00200 0.00000 O2 0.00700 0.02600 0.01300 0.00400 -0.00600 0.00200 D1 0.02600 0.02400 0.02700 -0.00100 0.00700 0.00000 D2 0.03400 0.03600 0.02200 -0.00300 -0.00700 0.00200