A photoluminescent second-order nonlinear optical molecular crystal with cold crystallization
Shen, Xin; Qi, Jun-Chao; Peng, Hang; Xia, Zhang-Tian; Bai, Yong-Ju; Chen, Hui-Ping; Wang, Zhen-Yu; Yang, Tian-En; Qin, Yan; Liao, Wei-Qiang; CrystEngComm 27 (2025) 1381–1385; doi:10.1039/D4CE01322K

data_7249989
_publ_section_title
;
 A photoluminescent second-order nonlinear optical molecular crystal with
 cold crystallization
;
_journal_issue                   10
_journal_name_full               CrystEngComm
_journal_page_first              1381
_journal_page_last               1385
_journal_paper_doi               10.1039/D4CE01322K
_journal_volume                  27
_journal_year                    2025
_chemical_absolute_configuration na
_chemical_formula_moiety         'C20 H20 Br2 N2 O2'
_chemical_formula_sum            'C20 H20 Br2 N2 O2'
_chemical_formula_weight         480.20
_space_group_crystal_system      orthorhombic
_space_group_IT_number           18
_space_group_name_Hall           'P 2 2ab'
_space_group_name_H-M_alt        'P 21 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2024-12-16
_audit_creation_method
;
Olex2 1.5
(compiled 2023.03.06 svn.rbb2c1857 for OlexSys, GUI svn.r6748)
;
_audit_update_record
;
2024-12-19 deposited with the CCDC.	2025-02-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.9364(2)
_cell_length_b                   19.0616(8)
_cell_length_c                   9.0086(3)
_cell_measurement_reflns_used    2190
_cell_measurement_temperature    297.98(10)
_cell_measurement_theta_max      73.9310
_cell_measurement_theta_min      2.3570
_cell_volume                     1019.39(6)
_computing_cell_refinement       'CrysAlisPro 1.171.42.79a (Rigaku OD, 2022)'
_computing_data_collection       'CrysAlisPro 1.171.42.79a (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.79a (Rigaku OD, 2022)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_environment      air
_diffrn_ambient_temperature      297.98(10)
_diffrn_detector                 'Hybrid Pixel Array Detector'
_diffrn_detector_area_resol_mean 10.0000
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.947
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w     34.00  83.00   0.50    0.05    --   45.20-108.00 -86.00   98
  2  \w     37.00  63.00   0.50    0.06    --  108.36 -61.00-150.00   52
  3  \w     47.00  95.00   0.50    0.06    --  108.36-108.00 -86.00   96
  4  \w     38.00  68.00   0.50    0.06    --  108.36 -61.00-120.00   60
  5  \w     66.00 105.00   0.50    0.06    --  108.36 -94.00 -60.00   78
  6  \w     47.00  73.00   0.50    0.06    --  108.36 -61.00  60.00   52
  7  \w     36.00 110.00   0.50    0.05    --   45.20  57.00-180.00  148
  8  \w     -4.00  26.00   0.50    0.05    --  -45.20  19.00 -90.00   60
  9  \w     -7.00  30.00   0.50    0.05    --  -45.20  19.00  30.00   74
 10  \w   -175.00 -98.00   0.50    0.06    -- -102.00 -20.00  86.00  154
 11  \w   -128.00 -54.00   0.50    0.06    -- -102.00-154.00-146.00  148
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy R, DW system, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0669395000
_diffrn_orient_matrix_UB_12      0.0475042000
_diffrn_orient_matrix_UB_13      -0.1310727000
_diffrn_orient_matrix_UB_21      -0.0117876000
_diffrn_orient_matrix_UB_22      0.0646796000
_diffrn_orient_matrix_UB_23      0.1022892000
_diffrn_orient_matrix_UB_31      0.2503516000
_diffrn_orient_matrix_UB_32      -0.0096852000
_diffrn_orient_matrix_UB_33      0.0401807000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0511
_diffrn_reflns_av_unetI/netI     0.0589
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.947
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            3315
_diffrn_reflns_point_group_measured_fraction_full 0.915
_diffrn_reflns_point_group_measured_fraction_max 0.849
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         76.243
_diffrn_reflns_theta_min         4.640
_diffrn_source                   'Rotating-anode X-ray tube'
_diffrn_source_type              'Rigaku (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    5.173
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.14046
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.42.79a (Rigaku Oxford Diffraction, 2022)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.564
_exptl_crystal_description       block
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.679
_refine_diff_density_min         -0.969
_refine_diff_density_rms         0.148
_refine_ls_abs_structure_details
;
 Flack x determined using 458 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.31(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     119
_refine_ls_number_reflns         1821
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0731
_refine_ls_R_factor_gt           0.0678
_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^)+(0.1233P)^2^+0.2716P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1912
_refine_ls_wR_factor_ref         0.1978
_reflns_Friedel_coverage         0.507
_reflns_Friedel_fraction_full    0.792
_reflns_Friedel_fraction_max     0.705
_reflns_number_gt                1570
_reflns_number_total             1821
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ce01322k2.cif
_cod_data_source_block           Rac-C20H20Br2N2O2-298K
_cod_depositor_comments
'Adding full bibliography for 7249987--7249989.cif.'
_cod_database_code               7249989
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C H O N Br'
_shelx_estimated_absorpt_t_max   0.626
_shelx_estimated_absorpt_t_min   0.626
_reflns_odcompleteness_completeness 99.82
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     66.97
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C8(H8)
2.b Secondary CH2 refined with riding coordinates:
 C9(H9A,H9B), C10(H10A,H10B)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C7(H7), C4(H4), C5(H5)
2.d Idealised tetrahedral OH refined as rotating group:
 O1(H1)
;
_shelx_res_checksum              66342
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 3.386
_oxdiff_exptl_absorpt_empirical_full_min 0.390