#------------------------------------------------------------------------------ #$Date: 2009-08-08 20:50:04 +0300 (Sat, 08 Aug 2009) $ #$Revision: 805 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/2003124.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_2003124 _journal_name_full 'Acta Crystallographica, Section B' _journal_year 1999 _journal_volume B55 _journal_page_first 1 _journal_page_last 7 loop_ _publ_author_name ; streltsov ; _chemical_formula_sum 'Nd1 Fe1 O3' _chemical_formula_weight 248.08 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M 'P n m a' _symmetry_space_group_name_Hall '-P 2ac 2n' loop_ _symmetry_equiv_pos_as_xyz +x,+y,+z 1/2-x,-y,1/2+z 1/2+x,1/2-y,1/2-z -x,1/2+y,-z -x,-y,-z 1/2+x,+y,1/2-z 1/2-x,1/2+y,1/2+z +x,1/2-y,+z _cell_length_a 5.5887(5) _cell_length_b 7.7619(5) _cell_length_c 5.4489(5) _cell_angle_alpha 90.000(7) _cell_angle_beta 90.000(7) _cell_angle_gamma 90.000(7) _cell_volume 236.37(3) _cell_formula_units_Z 4 _cell_measurement_reflns_used 12 _cell_measurement_theta_min 40.820 _cell_measurement_theta_max 49.420 _cell_measurement_temperature 293 _exptl_crystal_description Rectangular _exptl_crystal_colour Red _exptl_crystal_size_max 0.25x10^-5^ _exptl_crystal_size_mid ? _exptl_crystal_size_min ? _exptl_crystal_density_diffrn 6.971 _exptl_crystal_density_meas ? _exptl_crystal_density_method ? _exptl_crystal_F_000 440 _exptl_absorpt_coefficient_mu 41.64 _exptl_absorpt_correction_type analytical _exptl_absorpt_process_details ? _exptl_absorpt_correction_T_min 0.5856 _exptl_absorpt_correction_T_max 0.6787 _diffrn_ambient_temperature 293 _diffrn_radiation_type xray_vertical_wiggler _diffrn_radiation_wavelength 0.84 _diffrn_radiation_source photon_factory_bl14a _diffrn_radiation_monochromator si(111) _diffrn_measurement_device bl14a_4-circle _diffrn_measurement_method \w-2\q _diffrn_reflns_number 9496 _diffrn_reflns_av_R_equivalents .059 _diffrn_reflns_av_sigmaI/netI .019 _diffrn_reflns_theta_min 5.4 _diffrn_reflns_theta_max 66.81 _diffrn_reflns_limit_h_min -12 _diffrn_reflns_limit_h_max 12 _diffrn_reflns_limit_k_min -16 _diffrn_reflns_limit_k_max 16 _diffrn_reflns_limit_l_min -11 _diffrn_reflns_limit_l_max 11 _diffrn_reflns_reduction_process ? _diffrn_standards_number 6 _diffrn_standards_interval_count 94 _diffrn_standards_interval_time ? _diffrn_standards_decay_% 3 loop_ _diffrn_standard_refln_index_h _diffrn_standard_refln_index_k _diffrn_standard_refln_index_l ? ? ? _reflns_number_total 1328 _reflns_number_observed 1328 _reflns_observed_criterion I>2\s(I) _refine_ls_structure_factor_coef F _refine_ls_matrix_type full _refine_ls_R_factor_all .03 _refine_ls_R_factor_obs .029 _refine_ls_wR_factor_all .033 _refine_ls_wR_factor_obs .033 _refine_ls_goodness_of_fit_all 2.491 _refine_ls_goodness_of_fit_obs 2.509 _refine_ls_number_reflns 1328 _refine_ls_number_parameters 28 _refine_ls_number_restraints 0 _refine_ls_number_constraints 0 _refine_ls_hydrogen_treatment ? _refine_ls_weighting_scheme w=1/\s^2^(F) _refine_ls_shift/esd_max 0.00009 _refine_ls_shift/esd_mean . _refine_diff_density_max 4.996 _refine_diff_density_min -7.819 _refine_ls_extinction_method 'Larson (1970)' _refine_ls_extinction_coef r*<\s(r*) _refine_ls_abs_structure_details none _refine_ls_abs_structure_Flack 0 loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source Nd ? -.070007 4.028 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 Fe ? .372986 1.146 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 O ? .015991 .008972 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_thermal_displace_type _atom_site_calc_flag _atom_site_calc_attached_atom Nd .04907(3) .25000 -.01088(3) .00581(4) Uani ? ? Fe .00000 .00000 .50000 .00473(12) Uani ? ? O1 .4760(4) .25000 .0866(4) .0068(7) Uani ? ? O2 -.2949(3) -.0459(2) .2955(3) .0067(5) Uani ? ? 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 Nd .00706(5) .00374(4) .00665(4) .00000 -.00076(3) .00000 Fe .00616(12) .00288(11) .00515(12) .00028(9) .00012(8) -.00008(8) O1 .0099(7) .0021(6) .0083(7) .00000 -.0011(5) .00000 O2 .0075(5) .0055(5) .0073(4) -.0011(4) -.0022(4) .0008(3)