#------------------------------------------------------------------------------ #$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/51/41/1514102.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1514102 _publ_author_name 'Bystroem, A.M.' _publ_section_title ; The crystal structure of ramsdellite, an orthorhombic modification of Mn O2 ; _journal_page_first 163 _journal_page_last 173 _journal_paper_doi 10.3891/acta.chem.scand.03-0163 _journal_volume 3 _journal_year 1949 _chemical_formula_structural 'Mn O2' _chemical_formula_sum 'Mn O2' _chemical_name_mineral Ramsdellite _chemical_name_systematic 'Manganese(IV) Oxide' _space_group_IT_number 62 _symmetry_Int_Tables_number 62 _symmetry_space_group_name_Hall '-P 2c 2ab' _symmetry_space_group_name_H-M 'P b n m' _audit_creation_date 1980/01/01 _audit_update_record 2005/10/01 _cell_angle_alpha 90. _cell_angle_beta 90. _cell_angle_gamma 90. _cell_formula_units_Z 4 _cell_length_a 4.533(5) _cell_length_b 9.27(1) _cell_length_c 2.866(5) _cell_volume 120.4(3) _citation_journal_id_ASTM 'primary Acta Chemica Scandinavica (1-27,1973-42,1988) 1949 3 163 173 ACSAA4' _cod_data_source_file 'data_MnO2melanie024034.cif' _cod_data_source_block /var/www/cod/tmp/uploads/1395935391.11-D290F29E9218B844.cif _cod_original_cell_volume 120.43 _cod_original_formula_sum 'Mn1 O2' _cod_database_code 1514102 loop_ _journal_name_full 'Acta Chemica Scandinavica (1-27,1973-42,1988)' loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 '-x+1/2, y+1/2, z' 2 'x, y, -z+1/2' 3 'x+1/2, -y+1/2, z+1/2' 4 '-x, -y, -z' 5 'x+1/2, -y+1/2, -z' 6 '-x, -y, z+1/2' 7 '-x+1/2, y+1/2, -z+1/2' 8 'x, y, z' loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens Mn1 Mn4+ 4 c 0.022 0.136 0.25 1. 0 O1 O2- 4 c 0.333 0.275 0.25 1. 0 O2 O2- 4 c -.211 -.033 0.25 1. 0 loop_ _atom_type_symbol _atom_type_oxidation_number Mn4+ 4 O2- -2