Synthesising a series of promising ultraviolet nonlinear optical materials with the aid of the flexibility of isolated [B<sub>5</sub>O<sub>10</sub>] groups.
Song, Yixin; Yu, Hongwei; Wu, Hongping; Hu, Zhanggui; Wang, Jiyang; Wu, Yicheng; Dalton transactions (Cambridge, England : 2003) 54 (2025) 16356–16362; doi:10.1039/d5dt01944c

data_7719728
_publ_section_title
;
 Synthesising a series of promising ultraviolet nonlinear optical
 materials with the aid of the flexibility of isolated
 [B<sub>5</sub>O<sub>10</sub>] groups.
;
_journal_issue                   44
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              16356
_journal_page_last               16362
_journal_paper_doi               10.1039/d5dt01944c
_journal_volume                  54
_journal_year                    2025
_chemical_formula_sum            'B45 K21 O90 Sc5.89 Sr2.51'
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_space_group_name_Hall           'R 3 2"'
_space_group_name_H-M_alt        'R 3 2 :H'
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_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2025-07-23 deposited with the CCDC.	2025-10-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
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_cell_measurement_theta_max      26.49
_cell_measurement_theta_min      3.11
_cell_volume                     2200.1(2)
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  Bruker
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0790
_diffrn_reflns_av_unetI/netI     0.0580
_diffrn_reflns_Laue_measured_fraction_full 1.000
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_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -16
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_diffrn_reflns_number            6556
_diffrn_reflns_point_group_measured_fraction_full 0.999
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_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.490
_diffrn_reflns_theta_min         2.262
_exptl_absorpt_coefficient_mu    3.070
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    2.439
_exptl_crystal_description       lumpy
_exptl_crystal_F_000             1563
_refine_diff_density_max         0.430
_refine_diff_density_min         -0.595
_refine_diff_density_rms         0.101
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.10(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.829
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     89
_refine_ls_number_reflns         1127
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.829
_refine_ls_R_factor_all          0.0596
_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
'w=1/[\s^2^(Fo^2^)+(0.0654P)^2^+18.3939P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0933
_refine_ls_wR_factor_ref         0.1076
_reflns_Friedel_coverage         0.766
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_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                944
_reflns_number_total             1127
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5dt01944c2.cif
_cod_data_source_block           1_a
_cod_depositor_comments
'Adding full bibliography for 7719727--7719734.cif.'
_cod_original_cell_volume        2200.1(3)
_cod_database_code               7719728
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              55481
_shelx_hkl_checksum              89282