Crystal structure of ∼RCu3S3 and ∼RCuTe2 (R=Gd‒Lu) compounds
Gulay, L.D.; Daszkiewicz, M.; Shemet, V.Ya.; Journal of Solid State Chemistry 186 (2012) 142–148; doi:10.1016/j.jssc.2011.12.004

data_1563050
_publ_section_title
;
 Crystal structure of \\sim RCu3S3 and \\sim RCuTe2 (R=Gd--Lu) compounds
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              142
_journal_page_last               148
_journal_paper_doi               10.1016/j.jssc.2011.12.004
_journal_volume                  186
_journal_year                    2012
_chemical_formula_moiety         'Cu1.74 Gd0.75 Te2'
_chemical_formula_sum            'Cu1.74 Gd0.75 Te2'
_chemical_formula_weight         483.70
_space_group_IT_number           162
_space_group_name_Hall           '-P 3 2'
_space_group_name_H-M_alt        'P -3 1 m'
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-P 3 2'
_symmetry_space_group_name_H-M   'P -3 1 m'
_atom_sites_solution_hydrogens   .
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   7.478(1)
_cell_length_b                   7.478(1)
_cell_length_c                   7.015(1)
_cell_measurement_reflns_used    296
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      3.15
_cell_volume                     339.73(8)
_computing_cell_refinement       'CrysAlis RED'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2009)'
_computing_data_reduction        'CrysAlis RED'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean '1024x1024 with blocks 2x2, 33.133pixel/mm'
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'KUMA KM-4 with area CCD detector'
_diffrn_measurement_method       \w-scan
_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  0.0636
_diffrn_reflns_av_sigmaI/netI    0.0246
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            3567
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.15
_diffrn_standards_interval_count .
_diffrn_standards_interval_time  .
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    31.400
_exptl_absorpt_correction_T_max  0.490
_exptl_absorpt_correction_T_min  0.119
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'CrysAlis (Oxford Diffraction, 2009)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    7.093
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             607
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.03
_refine_diff_density_max         3.509
_refine_diff_density_min         -1.352
_refine_diff_density_rms         0.602
_refine_ls_extinction_coef       0.0089(13)
_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   1.223
_refine_ls_hydrogen_treatment    .
_refine_ls_matrix_type           full
_refine_ls_number_parameters     19
_refine_ls_number_reflns         305
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.223
_refine_ls_R_factor_all          0.0415
_refine_ls_R_factor_gt           0.0401
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0590P)^2^+1.7869P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1004
_refine_ls_wR_factor_ref         0.1016
_reflns_number_gt                296
_reflns_number_total             305
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            JSSC-2012-186-142.CIF
_cod_data_source_block           gd
_cod_original_cell_volume        339.73(10)
_cod_database_code               1563050