Second Harmonic Generation Response Optimized at Various Optical Wavelength Ranges through a Series of Cubic Chalcogenides Ba6Ag2.67+4δSn4.33−δS16‒xSex
Lai, Wei-Han; Haynes, Alyssa S.; Frazer, Laszlo; Chang, Yu-Ming; Liu, Te-Kun; Lin, Jyun-Fan; Liang, I-Chu; Sheu, Hwo-Shuenn; Ketterson, John B.; Kanatzidis, Mercouri G.; Hsu, Kuei-Fang; Chemistry of Materials 27 (2015) 1316–; doi:10.1021/cm504348z

data_4002181
_publ_section_title
;
 Second Harmonic Generation Response Optimized at Various Optical
 Wavelength Ranges through a Series of Cubic Chalcogenides
 Ba6Ag2.67+4\dSn4.33&#x2212;\dS16--xSex
;
_journal_issue                   4
_journal_name_full               'Chemistry of Materials'
_journal_page_first              1316
_journal_paper_doi               10.1021/cm504348z
_journal_volume                  27
_journal_year                    2015
_chemical_formula_moiety         Ba6Ag3.7Sn4Se16
_chemical_formula_sum            'Ag0.31 Ba0.5 Se1.33 Sn0.33'
_chemical_formula_weight         247.0
_space_group_IT_number           220
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  'I -4bd 2c 3'
_symmetry_space_group_name_H-M   'I -4 3 d'
_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            48
_cell_length_a                   15.2983(3)
_cell_length_b                   15.2983(3)
_cell_length_c                   15.2983(3)
_cell_measurement_reflns_used    3802
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.661
_cell_measurement_theta_min      3.26
_cell_volume                     3580.38(12)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker APEX2'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0511
_diffrn_reflns_av_sigmaI/netI    0.0192
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12943
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         3.26
_exptl_absorpt_coefficient_mu    27.464
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.5307
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    5.499
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             5020
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.182
_refine_diff_density_min         -1.604
_refine_diff_density_rms         0.191
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(3)
_refine_ls_extinction_coef       0.000127(18)
_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   1.046
_refine_ls_matrix_type           full
_refine_ls_number_parameters     33
_refine_ls_number_reflns         747
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0276
_refine_ls_R_factor_gt           0.0266
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0350P)^2^+82.6877P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0664
_refine_ls_wR_factor_ref         0.0672
_reflns_number_gt                726
_reflns_number_total             747
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm504348z_si_002.cif
_cod_data_source_block           compound3
_cod_depositor_comments
'Adding full bibliography for 4002177--4002181.cif.'
_cod_original_sg_symbol_H-M      I-43d
_cod_original_formula_sum        'Ag0.31 Ba0.50 Se1.33 Sn0.33'
_cod_database_code               4002181