Crystal structure of samarium pentagermanide, SmGe5
Katrin Meier; Cevriye Koz; Alexander Kerkau; Ulrich Schwarz; Zeitschrift für Kristallographie - New Crystal Structures 224 (2009) 349–; doi:

data_8103028
_publ_section_title
;
 Crystal structure of samarium pentagermanide, SmGe5
;
_journal_issue                   3
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              349
_journal_volume                  224
_journal_year                    2009
_chemical_formula_sum            'Ge5 Sm'
_chemical_formula_weight         1026.6
_space_group_IT_number           25
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 -2'
_symmetry_space_group_name_H-M   'P m m 2'
_audit_creation_method           'WinCSD program'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   3.9805(7)
_cell_length_b                   6.1522(9)
_cell_length_c                   9.839(2)
_cell_measurement_temperature    295
_cell_volume                     240.95(7)
_computing_cell_refinement       WinCSD
_computing_data_reduction        WinCSD
_computing_structure_refinement  WinCSD
_diffrn_measurement_details
;? 
_diffrn_reflns_number                    ?
_diffrn_reflns_av_R_equivalents          ?
_diffrn_reflns_av_sigmaI/netI            ?
_diffrn_reflns_limit_h_min               ?
_diffrn_reflns_limit_h_max                ?
_diffrn_reflns_limit_k_min               ?
_diffrn_reflns_limit_k_max                ?
_diffrn_reflns_limit_l_min               ?
_diffrn_reflns_limit_l_max                ?
_diffrn_reflns_theta_min                 ?
_diffrn_reflns_theta_max                  16.7

_computing_data_collection             ?
_computing_data_reduction               'WinCSD'
_computing_cell_refinement              'WinCSD'
_computing_structure_refinement        'WinCSD'
 
 
_reflns_number_total                    ?
_reflns_number_gt                       ?
_reflns_threshold_expression            ?
_refine_ls_structure_factor_coef       Inet
_refine_ls_matrix_type                   fullcycle
_refine_ls_weighting_scheme             '1/[Y~i~+\s(Y~i~)]'
_refine_ls_weighting_details               ?
_atom_sites_solution_primary            ?
_atom_sites_solution_secondary          ?
_refine_ls_extinction_method            ?
_refine_ls_number_reflns                255
_refine_ls_number_parameters            14
_refine_ls_number_restraints            ?
_refine_ls_R_factor_gt                  0.0921
_refine_ls_wR_factor_ref                0.1100
_refine_ls_goodness_of_fit_ref          ?
_refine_ls_restrained_S_all             ?

_refine_ls_shift/su_max                ?
_refine_diff_density_max              ?
_refine_diff_density_min               ?

_pd_meas_number_of_points                15233
_pd_meas_2theta_range_min                2.50000
_pd_meas_2theta_range_max             32.97000
_pd_meas_2theta_range_inc              0.002000

 
_audit_creation_date                    ?
_audit_creation_method                  'WinCSD program'
_comment                        'I m m m' (Ge2 fehlgeordnet)
 
 
_chemical_formula_sum                  'Sm1 Ge5'
_chemical_formula_weight              1026.6
 _pd_char_particle_morphology        'size < 0.063mm'
_pd_char_colour            black

 
_symmetry_cell_setting                  orthorhombic 
_symmetry_space_group_name_H-M         'I m m m'

_cell_length_a                    3.9805(7)
_cell_length_b                    6.1522(9)
_cell_length_c                    9.839(2)
_cell_angle_alpha                 90.00
_cell_angle_beta                  90.00
_cell_angle_gamma                 90.00
_cell_volume                      240.9(1)
_cell_formula_units_Z             2
_cell_measurement_temperature     295
 

 
_exptl_crystal_description              ?
_exptl_crystal_colour                   ?
_exptl_crystal_size_max                 ?
_exptl_crystal_size_mid                 ?
_exptl_crystal_size_min                 ?
_exptl_crystal_density_diffrn           7.0617(2)
_exptl_crystal_density_method           ?
_exptl_crystal_F_000                    444
_exptl_absorpt_coefficient_mu           10.77
_exptl_absorpt_correction_type          ?
_exptl_absorpt_correction_T_max         ?
_exptl_absorpt_correction_T_min         ?
 
 
_diffrn_detector_area_resol_mean        ?
_diffrn_ambient_temperature            ? #295
_diffrn_source_power                    ?
_diffrn_source_voltage                  ?
_diffrn_source_current                  ?
_diffrn_radiation_wavelength            0.39987841
_diffrn_radiation_type                  'x-ray'
_diffrn_radiation_source                synchrotron ID31 ESRF
_diffrn_radiation_monochromator         Si 111 double-crystal monochromator
_diffrn_radiation_detector              nine crystal multi-analyser stage
_diffrn_measurement_device              ?
_diffrn_measurement_method              ?
_diffrn_reflns_reduction_process        ?
_diffrn_measurement_details              ?
;
_diffrn_radiation_detector       'nine crystal multi-analyser stage'
_diffrn_radiation_monochromator  'Si 111 double-crystal monochromator'
_diffrn_radiation_source         'synchrotron ID31 ESRF'
_diffrn_radiation_type           x-ray
_diffrn_radiation_wavelength     0.39987841
_diffrn_reflns_theta_max         16.7
_exptl_absorpt_coefficient_mu    10.77
_exptl_crystal_density_diffrn    7.0616(2)
_exptl_crystal_F_000             444
_pd_char_colour                  black
_pd_char_particle_morphology     'size < 0.063mm'
_pd_meas_2theta_range_inc        0.002000
_pd_meas_2theta_range_max        32.97000
_pd_meas_2theta_range_min        2.50000
_pd_meas_number_of_points        15233
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     16
_refine_ls_number_reflns         255
_refine_ls_R_factor_gt           0.0926
_refine_ls_structure_factor_coef Inet
_refine_ls_weighting_details     'w = 1/[Y~i~+\s(Y~i~)]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1103
_cod_data_source_file            710015.cff
_cod_data_source_block           SmGe5
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value '1/[Y~i~+\s(Y~i~)]' was changed
to 'calc'. New tag '_refine_ls_weighting_details' was created. The
value of the new tag was set to 'w = 1/[Y~i~+\s(Y~i~)]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        240.9(1)
_cod_original_sg_symbol_H-M      'I m m m'
_cod_original_formula_sum        'Sm1 Ge5'
_cod_database_code               8103028
_comment                         'I m m m (ohne Fehlordnung von Ge2)'