Syntheses, structures, magnetism, and optical properties of lutetium-based interlanthanide selenides.
Jin, Geng Bang; Choi, Eun Sang; Guertin, Robert P.; Brooks, James S.; Booth, Corwin H.; Albrecht-Schmitt, Thomas E; Inorganic chemistry 46 (2007) 9213–9220; doi:10.1021/ic701012j

data_4338938
_publ_section_title
;
 Syntheses, structures, magnetism, and optical properties of
 lutetium-based interlanthanide selenides.
;
_journal_issue                   22
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9213
_journal_page_last               9220
_journal_paper_doi               10.1021/ic701012j
_journal_volume                  46
_journal_year                    2007
_chemical_formula_moiety         'Ce3 Lu Se6'
_chemical_formula_sum            'Ce3 Lu Se6'
_chemical_formula_weight         1069.09
_chemical_name_common            'cerium lutetium selenide'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           58
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2 2n'
_symmetry_space_group_name_H-M   'P n n m'
_atom_sites_solution_hydrogens   geom
_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            4
_cell_length_a                   14.5020(9)
_cell_length_b                   17.4954(11)
_cell_length_c                   4.1129(3)
_cell_measurement_reflns_used    8929
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      28.32
_cell_measurement_theta_min      1.82
_cell_volume                     1043.52(12)
_computing_cell_refinement       'SMART SAINT'
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXP-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELCIF-97 (Sheldrick, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker APEX'
_diffrn_measurement_method       '0.3 wide w/ exposures'
_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  0.0347
_diffrn_reflns_av_sigmaI/netI    0.0248
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            8641
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.82
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count na
_diffrn_standards_interval_time  na
_diffrn_standards_number         na
_exptl_absorpt_coefficient_mu    43.070
_exptl_absorpt_correction_T_max  0.44725
_exptl_absorpt_correction_T_min  0.08405
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    6.805
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1796
_exptl_crystal_size_max          0.346
_exptl_crystal_size_mid          0.022
_exptl_crystal_size_min          0.020
_refine_diff_density_max         2.127
_refine_diff_density_min         -1.519
_refine_diff_density_rms         0.302
_refine_ls_extinction_coef       0.00001(5)
_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   1.086
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     64
_refine_ls_number_reflns         1469
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.0234
_refine_ls_R_factor_gt           0.0212
_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^)+(0.0162P)^2^+11.2623P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0477
_refine_ls_wR_factor_ref         0.0485
_reflns_number_gt                1386
_reflns_number_total             1469
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            allcif.cif
_cod_data_source_block           final
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'nm' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      Pnnm
_cod_database_code               4338938