; Chemistry of Materials  (2002) –; doi:10.1021/cm020731t

data_4000207
_journal_name_full               'Chemistry of Materials'
_journal_paper_doi               10.1021/cm020731t
_journal_year                    2002
_chemical_formula_sum            'Sb5 Sm3 Ti'
_chemical_formula_weight         1107.70
_chemical_name_common            'samarium titanium antimonide'
_chemical_name_systematic        'samarium titanium antimonide'
_space_group_IT_number           193
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-P 6c 2'
_symmetry_space_group_name_H-M   'P 63/m c m'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            2
_cell_length_a                   9.2758(3)
_cell_length_b                   9.2758(3)
_cell_length_c                   6.1581(2)
_cell_measurement_reflns_used    3355
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      33.14
_cell_measurement_theta_min      4.40
_cell_volume                     458.86(3)
_diffrn_ambient_temperature      295(2)
_diffrn_measurement_device_type  'Bruker Platform/SMART 1000 CCD'
_diffrn_measurement_method       '\w scan (0.2 deg)'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0733
_diffrn_reflns_av_sigmaI/netI    0.0263
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            6639
_diffrn_reflns_theta_max         33.14
_diffrn_reflns_theta_min         2.54
_exptl_absorpt_coefficient_mu    34.067
_exptl_absorpt_correction_T_max  0.340
_exptl_absorpt_correction_T_min  0.188
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Bruker SHELXTL 5.1 (Sheldrick, 1997)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    8.017
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       prism
_exptl_crystal_F_000             926
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_ls_extinction_coef       0.0019(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.392
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     14
_refine_ls_number_reflns         344
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.392
_refine_ls_R_factor_all          0.0461
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0273P)^2^+7.1035P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0742
_refine_ls_wR_factor_ref         0.0751
_reflns_number_gt                326
_reflns_number_total             344
_reflns_threshold_expression     I>2\s(I)
_cod_database_code               4000207