#------------------------------------------------------------------------------ #$Date: 2011-09-28 17:24:46 +0300 (Wed, 28 Sep 2011) $ #$Revision: 26848 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/10/47/2104763.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_2104763 loop_ _publ_author_name 'Funahashi, Shiro' 'Tanaka, Kiyoaki' 'Iga, Fumitoshi' _publ_section_title ; X-ray atomic orbital analysis of 4f and 5d electron configuration of SmB~6~ at 100, 165, 230 and 298K ; _journal_coeditor_code OG5039 _journal_issue 3 _journal_name_full 'Acta Crystallographica Section B' _journal_page_first 292 _journal_page_last 306 _journal_volume 66 _journal_year 2010 _chemical_formula_moiety 'B6 3-, Sm 3+' _chemical_formula_sum 'B6 Sm' _chemical_formula_weight 215.23 _chemical_name_common 'samarium hexaboride' _chemical_name_systematic 'samarium hexaboride' _space_group_IT_number 221 _symmetry_cell_setting cubic _symmetry_space_group_name_Hall '-P 4 2 3' _symmetry_space_group_name_H-M 'P m -3 m' _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_formula_units_Z 1 _cell_length_a 4.1325(2) _cell_length_b 4.1325(2) _cell_length_c 4.1325(2) _cell_measurement_reflns_used 30 _cell_measurement_temperature 165.0(10) _cell_measurement_theta_max 39.11 _cell_measurement_theta_min 36.47 _cell_volume 70.573(6) _computing_cell_refinement ; RSLC-3 UNICS system (Sakurai, T. & Kobayashi, K. (1979), Rep. Inst. Phys. Chem. Res. 55, 69-77) ; _computing_data_collection ; MXC(MAC Science) and a program IUANGLE by Tanaka (Tanaka, K.,Kumazawa S., Tsubokawa, M., Maruno, S. & Shirotani, I. (Acta Cryst., A50, 246-252(1994)) ; _computing_data_reduction ' RDEDIT (K. Tanaka)' _computing_structure_refinement 'QNTAO (K. Tanaka, 2000)' _diffrn_ambient_temperature 165.0(10) _diffrn_detector_area_resol_mean '5.46x5.46 mm' _diffrn_measured_fraction_theta_max 0.67 _diffrn_measurement_device_type 'four-circle diffractometer' _diffrn_measurement_method 'integrated intensities data fom \w/2\q scans' _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'fine-focus rotating anode' _diffrn_radiation_type ' Mo K\a' _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.01337 _diffrn_reflns_limit_h_max 11 _diffrn_reflns_limit_h_min -11 _diffrn_reflns_limit_k_max 11 _diffrn_reflns_limit_k_min -10 _diffrn_reflns_limit_l_max 9 _diffrn_reflns_limit_l_min -6 _diffrn_reflns_number 593 _diffrn_reflns_theta_max 74.86 _diffrn_reflns_theta_min 4.93 _diffrn_standards_decay_% 0 _diffrn_standards_interval_count 50 _diffrn_standards_number 3 _exptl_absorpt_coefficient_mu 20.506 _exptl_absorpt_correction_T_max 0.4180 _exptl_absorpt_correction_T_min 0.3557 _exptl_absorpt_correction_type sphere _exptl_absorpt_process_details ; Transmission cefficient for spheres tabulated in International Table II(1972) Table 5.3.6B was interpolated with Lagrange's method (four point interpolation) ; _exptl_crystal_colour 'metallic dark blue' _exptl_crystal_density_diffrn 5.0642 _exptl_crystal_description sphere _exptl_crystal_F_000 92 _exptl_crystal_size_max 0.078 _exptl_crystal_size_mid 0.078 _exptl_crystal_size_min 0.078 _exptl_crystal_size_rad 0.039 _refine_diff_density_max 0.39 _refine_diff_density_min -0.41 _refine_ls_extinction_coef '0.194(4) E04' _refine_ls_extinction_method 'B-C type 1 Gaussian anisotropic' _refine_ls_goodness_of_fit_ref 1.1108 _refine_ls_matrix_type full _refine_ls_number_constraints 12 _refine_ls_number_parameters 36 _refine_ls_number_reflns 582 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.00960 _refine_ls_R_factor_gt 0.00793 _refine_ls_shift/su_max 0.00045 _refine_ls_shift/su_mean 0.00006 _refine_ls_structure_factor_coef F _refine_ls_weighting_scheme sigma _refine_ls_wR_factor_gt 0.00837 _refine_ls_wR_factor_ref 0.01150 _reflns_number_gt 182 _reflns_number_total 182 _reflns_threshold_expression F>3.0\s(F) _[local]_cod_data_source_file og5039.cif _[local]_cod_data_source_block 165K _cod_original_cell_volume 70.5715(12) _cod_database_code 2104763 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' 'z, x, y' 'y, z, x' 'x, z, y' 'y, x, z' 'z, y, x' 'x, -y, -z' 'z, -x, -y' 'y, -z, -x' 'x, -z, -y' 'y, -x, -z' 'z, -y, -x' '-x, y, -z' '-z, x, -y' '-y, z, -x' '-x, z, -y' '-y, x, -z' '-z, y, -x' '-x, -y, z' '-z, -x, y' '-y, -z, x' '-x, -z, y' '-y, -x, z' '-z, -y, x' '-x, -y, -z' '-z, -x, -y' '-y, -z, -x' '-x, -z, -y' '-y, -x, -z' '-z, -y, -x' '-x, y, z' '-z, x, y' '-y, z, x' '-x, z, y' '-y, x, z' '-z, y, x' 'x, -y, z' 'z, -x, y' 'y, -z, x' 'x, -z, y' 'y, -x, z' 'z, -y, x' 'x, y, -z' 'z, x, -y' 'y, z, -x' 'x, z, -y' 'y, x, -z' 'z, y, -x' 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 _atom_site_aniso_type_symbol Sm 0.004210(10) 0.004210(10) 0.004210(10) 0.0 0.0 0.0 Sm B 0.00431(8) 0.00431(8) 0.00274(12) 0.0 0.0 0.0 B loop_ _atom_site_type_symbol _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_refinement_flags _atom_site_occupancy Sm Sm 0.5 0.5 0.5 0.00427(2) S 1.0 B B 0.0 0.0 0.2967(2) 0.00385(6) S 1.0 loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source Sm3+ samarium -0.1638 3.4418 ; Calculated with a program SFRSCF for each atomic orbital calculated with a program HEX by Libermann, Cromer & Waber (1971). ; B boron 0.0013 0.0007 ; Calculated with a program SFMANN for each atomic orbital from atomic orbitals by Mann (Loas Alamos Scientific Report, LA3691(1968)). ; loop_ _diffrn_standard_refln_index_h _diffrn_standard_refln_index_k _diffrn_standard_refln_index_l 2 0 0 0 2 0 0 0 2 loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_2 _geom_angle_site_symmetry_3 _geom_angle _geom_angle_publ_flag B Sm B 1_555 1_555 7_556 32.08(2) y B Sm B 1_555 1_555 2_555 33.14(2) y loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_1 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag Sm B 1_555 1_555 3.0408(3) y B B 1_555 2_555 1.7340(8) y B B 1_555 7_556 1.6803(12) y loop_ _geom_contact_atom_site_label_1 _geom_contact_atom_site_label_2 _geom_contact_distance _geom_contact_site_symmetry_1 _geom_contact_site_symmetry_2 _geom_contact_publ_flag ? ? ? ? ? ? loop_ _geom_hbond_atom_site_label_D _geom_hbond_atom_site_label_H _geom_hbond_atom_site_label_A _geom_hbond_site_symmetry_D _geom_hbond_site_symmetry_H _geom_hbond_site_symmetry_A _geom_hbond_distance_DH _geom_hbond_distance_HA _geom_hbond_distance_DA _geom_hbond_angle_DHA _geom_hbond_publ_flag ? ? ? ? ? ? ? ? ? ? ? loop_ _geom_torsion_atom_site_label_1 _geom_torsion_atom_site_label_2 _geom_torsion_atom_site_label_3 _geom_torsion_atom_site_label_4 _geom_torsion_site_symmetry_1 _geom_torsion_site_symmetry_2 _geom_torsion_site_symmetry_3 _geom_torsion_site_symmetry_4 _geom_torsion _geom_torsion_publ_flag ? ? ? ? ? ? ? ? ? ?