Noncentrosymmetric versus Centrosymmetric: Influence of the Na+Substitution on Structural Transition and Second-Harmonic Generation Property
Han, Shujuan; Wang, Ying; Pan, Shilie; Dong, Xiaoyu; Wu, Hongping; Han, Jian; Yang, Yun; Yu, Hongwei; Bai, Chunyan; Crystal Growth & Design 14 (2014) 1794–; doi:10.1021/cg4019103

data_4510303
_publ_section_title
;
 Noncentrosymmetric versus Centrosymmetric: Influence of the
 Na+Substitution on Structural Transition and Second-Harmonic Generation
 Property
;
_journal_issue                   4
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1794
_journal_paper_doi               10.1021/cg4019103
_journal_volume                  14
_journal_year                    2014
_chemical_formula_sum            'B6 Br K2.33 Na0.67 O10'
_chemical_formula_weight         411.33
_chemical_name_common            K2.33Na0.67B6O10Br
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           160
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3 -2"'
_symmetry_space_group_name_H-M   'R 3 m :H'
_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                   10.050(2)
_cell_length_b                   10.050(2)
_cell_length_c                   8.816(4)
_cell_measurement_reflns_used    1238
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.18
_cell_measurement_theta_min      3.29
_cell_volume                     771.1(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.964
_diffrn_measured_fraction_theta_max 0.964
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0274
_diffrn_reflns_av_sigmaI/netI    0.0468
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            1626
_diffrn_reflns_theta_full        29.42
_diffrn_reflns_theta_max         29.42
_diffrn_reflns_theta_min         4.06
_exptl_absorpt_coefficient_mu    5.015
_exptl_absorpt_correction_T_max  0.7459
_exptl_absorpt_correction_T_min  0.4241
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   face-indexed
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.657
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             590
_exptl_crystal_size_max          0.336
_exptl_crystal_size_mid          0.191
_exptl_crystal_size_min          0.129
_refine_diff_density_max         0.418
_refine_diff_density_min         -0.347
_refine_diff_density_rms         0.068
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.026(11)
_refine_ls_extinction_coef       0.0318(14)
_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   0.992
_refine_ls_matrix_type           full
_refine_ls_number_parameters     42
_refine_ls_number_reflns         504
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.991
_refine_ls_R_factor_all          0.0206
_refine_ls_R_factor_gt           0.0197
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0474
_refine_ls_wR_factor_ref         0.0476
_reflns_number_gt                485
_reflns_number_total             504
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg4019103_si_007.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      R3m
_cod_database_code               4510303