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 = 5 K ; _database_code_amcsd 0015823 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Be O2 D2' _cell_length_a 4.5259 _cell_length_b 4.6314 _cell_length_c 7.0193 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 147.133 _exptl_crystal_density_diffrn 2.033 _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 0.03400 0.70460 0.62740 0.01267 O1 0.18920 0.10810 0.04500 0.01900 O2 0.15270 0.41200 0.72760 0.01773 D1 0.27400 0.09400 0.56400 0.02533 D2 0.35200 0.42700 0.77860 0.02913 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 0.00900 0.01600 0.01400 0.00200 0.00900 -0.00600 O1 0.02600 0.01200 0.01800 0.00500 -0.00300 0.00000 O2 0.00900 0.02600 0.01800 -0.00700 -0.00600 -0.00400 D1 0.02600 0.02300 0.02600 0.00200 0.00200 -0.00400 D2 0.03000 0.03300 0.02500 0.00100 -0.01300 -0.00400