The Short Series of the Oxygen-Poor Lanthanide Oxide Selenides M10OSe14 with M = La-Nd
Weber, Frank A.; Schurz, Christian M.; Frunder, Susanne; Kuhn, Charlotte F.; Schleid, Thomas; Crystals 2 (2012) 1136–1145; doi:10.3390/cryst2031136

data_1508488
_publ_section_title
;
 The Short Series of the Oxygen-Poor Lanthanide Oxide Selenides M10OSe14
 with M = La-Nd
;
_journal_issue                   3
_journal_name_full               Crystals
_journal_page_first              1136
_journal_page_last               1145
_journal_paper_doi               10.3390/cryst2031136
_journal_volume                  2
_journal_year                    2012
_chemical_formula_sum            'La10 O Se14'
_chemical_formula_weight         2510.54
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           142
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4bd 2c'
_symmetry_space_group_name_H-M   'I 41/a c d :2'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.9204(9)
_cell_length_b                   15.9204(9)
_cell_length_c                   21.0648(14)
_cell_measurement_reflns_used    5000
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      30.5
_cell_measurement_theta_min      2.3
_cell_volume                     5339.1(6)
_computing_cell_refinement       DIF4
_computing_data_collection       'DIF4 (Stoe & Cie., 1992)'
_computing_data_reduction        'REDU4 (Stoe& Cie., 1992)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Stoe IPDS-I'
_diffrn_measurement_method       'imaging plate detector system'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.1181
_diffrn_reflns_av_sigmaI/netI    0.0512
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            36621
_diffrn_reflns_theta_full        30.24
_diffrn_reflns_theta_max         30.24
_diffrn_reflns_theta_min         2.56
_exptl_absorpt_coefficient_mu    34.699
_exptl_absorpt_correction_T_max  0.0685
_exptl_absorpt_correction_T_min  0.0163
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
'with the help of the X-SHAPE soft ware by STOE, based on the program HABITUS by W. Herrendorf, Univ. Giessen, 1995'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    6.247
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       dodecaeder
_exptl_crystal_F_000             8432
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.105
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.512
_refine_diff_density_min         -2.398
_refine_diff_density_rms         0.386
_refine_ls_extinction_coef       0.000071(6)
_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   0.986
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     59
_refine_ls_number_reflns         1999
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.986
_refine_ls_R_factor_all          0.0692
_refine_ls_R_factor_gt           0.0381
_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^)+(0.0398P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0784
_reflns_number_gt                1500
_reflns_number_total             1999
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file
La10OSe14_I41_acd_la10ose14_crystals-02-01136-s001_DC221.cif
_cod_data_source_block           c:\crystal\x-red\la10os14_chateigner_1508488
_cod_original_sg_symbol_H-M      I41/acd
_cod_database_code               1508488