AGa3F6(SeO3)2 (A = Rb, Cs): A New Type of Phase-Matchable Hexagonal Tungsten Oxide Material with Strong Second-Harmonic Generation Responses
Wu, Chao; Jiang, Xingxing; Lin, Lin; Lin, Zheshuai; Huang, Zhipeng; Humphrey, Mark G.; Zhang, Chi; Chemistry of Materials  (2020) –; doi:10.1021/acs.chemmater.0c01971

data_4003636
_publ_section_title
;
 AGa3F6(SeO3)2 (A = Rb, Cs): A New Type of Phase-Matchable Hexagonal
 Tungsten Oxide Material with Strong Second-Harmonic Generation Responses
;
_journal_name_full               'Chemistry of Materials'
_journal_paper_doi               10.1021/acs.chemmater.0c01971
_journal_year                    2020
_chemical_formula_sum            'Cs F6 Ga3 O6 Se2'
_chemical_formula_weight         709.99
_space_group_IT_number           186
_space_group_name_Hall           'P 6c -2c'
_space_group_name_H-M_alt        'P 63 m c'
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_H-M   'P 63 m c'
_atom_sites_solution_hydrogens   none
_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            2
_cell_length_a                   7.1876(5)
_cell_length_b                   7.1876(5)
_cell_length_c                   11.8681(9)
_cell_measurement_reflns_used    1986
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      27.0639
_cell_measurement_theta_min      3.2729
_cell_volume                     530.98(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_detector_area_resol_mean 10.4167
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  bruker-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  0.0375
_diffrn_reflns_av_sigmaI/netI    0.0303
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            2963
_diffrn_reflns_theta_full        27.06
_diffrn_reflns_theta_max         27.06
_diffrn_reflns_theta_min         3.27
_exptl_absorpt_coefficient_mu    17.893
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.3891
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/5 (Bruker AXS Inc.)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    4.441
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate-like
_exptl_crystal_F_000             636
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.05
_refine_diff_density_max         2.789
_refine_diff_density_min         -2.801
_refine_diff_density_rms         0.371
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     40
_refine_ls_number_reflns         484
_refine_ls_number_restraints     19
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0429
_refine_ls_R_factor_gt           0.0406
_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^)+(0.0836P)^2^+15.2112P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1317
_refine_ls_wR_factor_ref         0.1337
_reflns_number_gt                460
_reflns_number_total             484
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm0c01971_si_003.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      P63mc
_cod_database_code               4003636