Rare-earth transition-metal gallium chalcogenides RE3MGaCh7 (M=Fe, Co, Ni; Ch=S, Se)
Rudyk, Brent W.; Stoyko, Stanislav S.; Oliynyk, Anton O.; Mar, Arthur; Journal of Solid State Chemistry 210 (2014) 79–88; doi:10.1016/j.jssc.2013.11.003

data_1562478
_publ_section_title
;
 Rare-earth transition-metal gallium chalcogenides RE3MGaCh7 (M=Fe, Co,
 Ni; Ch=S, Se)
;
_journal_issue                   1
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              79
_journal_page_last               88
_journal_paper_doi               10.1016/j.jssc.2013.11.003
_journal_volume                  210
_journal_year                    2014
_chemical_formula_structural     'Pr3 Fe Ga S7'
_chemical_formula_sum            'Fe Ga Pr3 S7'
_chemical_formula_weight         772.72
_chemical_name_common
'praseodymium iron gallium sulphide (3/1/1/7)'
_chemical_name_systematic
'praseodymium iron gallium sulphide (3/1/1/7)'
_space_group_IT_number           173
_space_group_name_Hall           'P 6c'
_space_group_name_H-M_alt        'P 63'
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 6c'
_symmetry_space_group_name_H-M   'P 63'
_atom_sites_solution_hydrogens   .
_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                   9.9846(4)
_cell_length_b                   9.9846(4)
_cell_length_c                   6.0303(5)
_cell_measurement_reflns_used    4960
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      32.99
_cell_measurement_theta_min      2.36
_cell_volume                     520.63(5)
_computing_cell_refinement       'Bruker SAINT 7.68A (Bruker, 2009)'
_computing_data_collection       'Bruker SMART 5.054 (Bruker, 1999)'
_computing_data_reduction        'Bruker SAINT 7.68A'
_computing_molecular_graphics    'ATOMS 5.1 (Dowty, 1999)'
_computing_publication_material  'Bruker SHELXTL 6.12'
_computing_structure_refinement  'Bruker SHELXTL 6.12'
_computing_structure_solution    'Bruker SHELXTL 6.12'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker PLATFORM/SMART APEX II CCD'
_diffrn_measurement_method       '\w scans'
_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  0.0309
_diffrn_reflns_av_sigmaI/netI    0.0228
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7175
_diffrn_reflns_theta_full        33.15
_diffrn_reflns_theta_max         33.15
_diffrn_reflns_theta_min         2.36
_exptl_absorpt_coefficient_mu    19.021
_exptl_absorpt_correction_T_max  0.5360
_exptl_absorpt_correction_T_min  0.3670
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Bruker SHELXTL 6.12 (Sheldrick, 2001)'
_exptl_crystal_colour            grey
_exptl_crystal_density_diffrn    4.929
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             692
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.404
_refine_diff_density_min         -2.638
_refine_diff_density_rms         0.217
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.002(19)
_refine_ls_extinction_coef       0.0091(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   1.107
_refine_ls_hydrogen_treatment    .
_refine_ls_matrix_type           full
_refine_ls_number_parameters     39
_refine_ls_number_reflns         1308
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0188
_refine_ls_R_factor_gt           0.0177
_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^)+(0.0157P)^2^+1.7847P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0429
_refine_ls_wR_factor_ref         0.0432
_reflns_number_gt                1261
_reflns_number_total             1308
_reflns_threshold_expression     I>2s\(I)
_cod_data_source_file            JSSC-2014-210-79.cif
_cod_data_source_block           Pr3FeGaS7
_cod_database_code               1562478