#------------------------------------------------------------------------------ #$Date: 2015-09-28 14:03:34 +0100 (Mon, 28 Sep 2015) $ #$Revision: 158611 $ #$URL: svn://www.crystallography.net/cod/cif/1/53/26/1532656.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_1532656 loop_ _publ_author_name 'Wang Yingxia' 'Bie Lijian' 'Du Yu' 'Lin Jianhua' 'Richardson, J.W.jr.' 'You Liping' 'Loong Chun-K' _publ_section_title ; Hexagonal perovskite-intergrowth manganates: Ln2 Ca2 Mn O7 (Ln= La, Nd and Sm) ; _journal_name_full 'Journal of Solid State Chemistry' _journal_page_first 65 _journal_page_last 72 _journal_volume 177 _journal_year 2004 _chemical_formula_sum 'Ca2 Mn Nd2 O7' _chemical_name_systematic 'Nd2 Ca2 (Mn O7)' _space_group_IT_number 148 _symmetry_space_group_name_Hall '-R 3' _symmetry_space_group_name_H-M 'R -3 :H' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 12 _cell_length_a 11.1096 _cell_length_b 11.1096 _cell_length_c 17.1987 _cell_volume 1838.328 _citation_journal_id_ASTM JSSCBI _cod_data_source_file WangYingxia_JSSCBI_2004_1847.cif _cod_data_source_block Ca2Mn1Nd2O7 _cod_chemical_formula_sum_orig 'Ca2 Mn1 Nd2 O7' _cod_database_code 1532656 loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z -x+y,-x,z -x,-y,-z y,-x+y,-z x-y,x,-z x+2/3,y+1/3,z+1/3 -y+2/3,x-y+1/3,z+1/3 -x+y+2/3,-x+1/3,z+1/3 -x+2/3,-y+1/3,-z+1/3 y+2/3,-x+y+1/3,-z+1/3 x-y+2/3,x+1/3,-z+1/3 x+1/3,y+2/3,z+2/3 -y+1/3,x-y+2/3,z+2/3 -x+y+1/3,-x+2/3,z+2/3 -x+1/3,-y+2/3,-z+2/3 y+1/3,-x+y+2/3,-z+2/3 x-y+1/3,x+2/3,-z+2/3 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv Mn1 Mn+4 0 0 0 1 0.0 Mn2 Mn+4 0.5 0 0 1 0.0 Ca3 Ca+2 0 0 0.176 0.88 0.0 Nd2 Nd+3 0.174 0.339 -0.0435 0.95 0.0 O5 O-2 0.288 0.686 0.1667 0.1667 0.0 Ca4 Ca+2 0.012 0.506 0.1736 0.88 0.0 O3 O-2 0.099 0.664 0.0745 1 0.0 O1 O-2 0.001 0.183 0.2816 1 0.0 O2 O-2 0.117 0.153 0.0579 1 0.0 Nd4 Nd+3 0.012 0.506 0.1736 0.12 0.0 Ca1 Ca+2 0 0 0.3773 0.33 0.0 Nd1 Nd+3 0 0 0.3773 0.67 0.0 Ca2 Ca+2 0.174 0.339 -0.0435 0.05 0.0 O4 O-2 0.052 0.388 0.0675 1 0.0 Nd3 Nd+3 0 0 0.176 0.12 0.0 O6 O-2 0.254 0.118 0.1667 0.5 0.0