Structural investigation of the Cu2Se‒In2Se3‒Ga2Se3 phase diagram, X-ray photoemission and optical properties of the Cu1−z(In0.5Ga0.5)1+z/3Se2 compounds
Souilah, M.; Lafond, A.; Guillot-Deudon, C.; Harel, S.; Evain, M.; Journal of Solid State Chemistry 183 (2010) 2274–2280; doi:10.1016/j.jssc.2010.08.014

data_1563483
_publ_section_title
;
 Structural investigation of the Cu2Se--In2Se3--Ga2Se3 phase diagram,
 X-ray photoemission and optical properties of the
 Cu1&#x2212;z(In0.5Ga0.5)1+z/3Se2 compounds
;
_journal_issue                   10
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              2274
_journal_page_last               2280
_journal_paper_doi               10.1016/j.jssc.2010.08.014
_journal_volume                  183
_journal_year                    2010
_chemical_formula_moiety         'Cu1 Ga0.482 In0.518 Se2'
_chemical_formula_sum            'Cu Ga0.482 In0.518 Se2'
_chemical_formula_weight         314.55
_space_group_IT_number           122
_space_group_name_Hall           'I -4 2bw'
_space_group_name_H-M_alt        'I -4 2 d'
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I -4 2bw'
_symmetry_space_group_name_H-M   'I -4 2 d'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.69700(4)
_cell_length_b                   5.69700(4)
_cell_length_c                   11.33180(14)
_cell_measurement_reflns_used    10648
_cell_measurement_temperature    293
_cell_measurement_theta_max      34.91
_cell_measurement_theta_min      6.48
_cell_volume                     367.783(6)
_computing_publication_material
'Jana2006 (Petricek, Dusek & Palatinus, 2006)'
_computing_structure_refinement
'Jana2006 (Petricek, Dusek & Palatinus, 2006)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device       'four-cycle diffractometer'
_diffrn_measurement_device_type  'Nonius CCD'
_diffrn_measurement_method       omega
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0572
_diffrn_reflns_av_sigmaI/netI    0.0085
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            10648
_diffrn_reflns_theta_full        34.91
_diffrn_reflns_theta_max         34.91
_diffrn_reflns_theta_min         6.48
_exptl_absorpt_coefficient_mu    32.1
_exptl_absorpt_correction_T_max  0.3377
_exptl_absorpt_correction_T_min  0.149
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
'Jana2006  (Petricek, Dusek & Palatinus, 2000)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    5.6642
_exptl_crystal_description       block
_exptl_crystal_F_000             549
_exptl_crystal_size_max          0.068
_exptl_crystal_size_mid          0.052
_exptl_crystal_size_min          0.045
_refine_diff_density_max         1.22
_refine_diff_density_min         -1.25
_refine_ls_extinction_coef       1200(200)
_refine_ls_extinction_method
'B-C type 1 Gaussian isotropic (Becker & Coppens, 1974)'
_refine_ls_goodness_of_fit_gt    1.73
_refine_ls_goodness_of_fit_ref   1.62
_refine_ls_number_constraints    2
_refine_ls_number_parameters     12
_refine_ls_number_reflns         402
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0486
_refine_ls_R_factor_gt           0.0330
_refine_ls_shift/su_max          0.0138
_refine_ls_shift/su_mean         0.0060
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/(\s^2^(I)+0.0016I^2^)
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0968
_refine_ls_wR_factor_ref         0.1036
_reflns_number_gt                312
_reflns_number_total             402
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            JSSC-2010_183-2274.cif
_cod_data_source_block           3
_cod_original_cell_volume        367.7827
_cod_original_formula_sum        'Cu1 Ga0.482 In0.518 Se2'
_cod_database_code               1563483