#------------------------------------------------------------------------------ #$Date: 2016-02-20 00:53:41 +0000 (Sat, 20 Feb 2016) $ #$Revision: 176768 $ #$URL: svn://www.crystallography.net/cod/cif/2/10/11/2101148.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_2101148 loop_ _publ_author_name 'Lehmann, A.' 'Luger, P.' 'Lehmann, C. W.' 'Ibberson, R. M.' _publ_section_title ; Oxalic acid dihydrate -- an accurate low-temperature structural study using high-resolution neutron powder diffraction ; _journal_issue 3 _journal_name_full 'Acta Crystallographica Section B' _journal_page_first 344 _journal_page_last 348 _journal_paper_doi 10.1107/S0108768193011656 _journal_volume 50 _journal_year 1994 _chemical_formula_moiety 'C2 D2 O4 , 2D2 O' _chemical_formula_sum 'C2 D6 O6' _chemical_formula_weight 126.03 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _cell_angle_alpha 90 _cell_angle_beta 106.0599(2) _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 6.13338(6) _cell_length_b 3.500180(10) _cell_length_c 11.98334(4) _cell_volume 247.218(3) _exptl_crystal_density_diffrn 1.694 _cod_data_source_file mu0311.cif _cod_data_source_block mu0311b _cod_original_cell_volume 247.218 _cod_database_code 2101148 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z C -.04380(10) .0574(2) .05208(6) O1 .08390(10) -.0569(3) .14940(7) O2 -.21940(10) .2414(2) .03622(7) O3 -.0482(2) .1322(3) .32053(8) D1 .0246(2) .0177(3) .21972(8) D2 .0741(2) .1975(3) .38616(8) D3 -.1428(2) -.0449(3) .34836(8) loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle O1 C O2 126.80(9) O1 C C 113.20(7) O2 C C 120.00(7) D1 O1 C 113.50(9) D2 O3 D3 106.20(10) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance C C 1.5430(10) C O1 1.2760(10) C O2 1.2240(10) O1 D1 1.0390(10) O3 D2 .9530(10) O3 D3 .969(2)