#------------------------------------------------------------------------------ #$Date: 2015-01-27 19:58:39 +0000 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/27/2002736.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_2002736 loop_ _publ_author_name 'Kluever, E' 'Mueller-Buschbaum, Hk' _publ_section_title ; Ueber einen Lanthanoid-Mangan-Apatit: Nd4 Mn (Si O4)3 O ; _journal_name_full ; Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie, Organische Chemie (42,1987-) ; _journal_page_first 61 _journal_page_last 65 _journal_volume 50 _journal_year 1995 _chemical_formula_structural 'Nd4 Mn (Si O4)3 O' _chemical_formula_sum 'Mn Nd4 O13 Si3' _chemical_name_systematic ; Tetraneodymium manganese tris(silicate) oxide ; _space_group_IT_number 176 _symmetry_cell_setting hexagonal _symmetry_Int_Tables_number 176 _symmetry_space_group_name_Hall '-P 6c' _symmetry_space_group_name_H-M 'P 63/m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 2 _cell_length_a 9.4986(9) _cell_length_b 9.4986(9) _cell_length_c 6.9436(15) _cell_volume 542.5 _refine_ls_R_factor_all 0.0632 _cod_database_code 2002736 loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z y-x,-x,z -x,-y,1/2+z y,y-x,1/2+z x-y,x,1/2+z -x,-y,-z y,y-x,-z x-y,x,-z x,y,1/2-z -y,x-y,1/2-z y-x,-x,1/2-z loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_22 _atom_site_aniso_U_23 _atom_site_aniso_U_33 Nd1 0.01105(1) 0.00455(1) 0. 0.00888(1) 0. 0.01036(2) Nd2 0.00628(2) 0.00314(1) 0. 0.00628(2) 0. 0.01472(4) Mn1 0.00628(2) 0.00314(1) 0. 0.00628(2) 0. 0.01472(4) Si1 0.00926(7) 0.00364(5) 0. 0.00657(7) 0. 0.01224(10) O1 0.0107(3) 0.0053(2) 0. 0.0107(3) 0. 0.111(2) O2 0.0115(2) 0.0048(2) 0.0041(3) 0.0155(3) 0.0068(3) 0.0136(7) O3 0.0263(2) 0.01885(15) 0. 0.0204(2) 0. 0.0218(4) O4 0.0204(3) 0.0135(2) 0.0002(3) 0.0224(3) -0.0012(3) 0.0097(4) O5 0.0454(5) 0.0109(3) -0.0163(4) 0.0105(3) -0.0013(3) 0.0114(4) 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 _atom_site_calc_flag Nd1 Nd3+ 6 h 0.229320(5) -0.011530(5) 0.25 1. 0 d Nd2 Nd3+ 4 f 0.3333 0.6667 -0.00361(2) 0.5 0 d Mn1 Mn2+ 4 f 0.3333 0.6667 -0.00361(2) 0.5 0 d Si1 Si4+ 6 h 0.40390(3) 0.37570(3) 0.25 1. 0 d O1 O2- 2 a 0. 0. 0.25 1. 0 d O2 O2- 12 i 0.59707(9) 0.46697(10) 0.21307(13) 0.5 0 d O3 O2- 6 h 0.32972(8) 0.49600(8) 0.25 1. 0 d O4 O2- 12 i 0.37023(11) 0.26755(11) 0.0582(2) 0.5 0 d O5 O2- 12 i 0.3068(2) 0.24266(11) 0.0817(2) 0.5 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Nd3+ 3.000 Mn2+ 2.000 Si4+ 4.000 O2- -2.000