Sign inversions of circularly polarized luminescence for helical compounds by chemically fine-tuning operations.
Lin, Wei-Bin; He, Dong-Qiang; Lu, Hai-Yan; Hu, Zhi-Qiang; Chen, Chuan-Feng; Chemical communications (Cambridge, England) 56 (2020) 1863–1866; doi:10.1039/c9cc08573d

data_7126126
_publ_section_title
;
 Sign inversions of circularly polarized luminescence for helical
 compounds by chemically fine-tuning operations.
;
_journal_issue                   12
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1863
_journal_page_last               1866
_journal_paper_doi               10.1039/c9cc08573d
_journal_volume                  56
_journal_year                    2020
_chemical_formula_moiety         'C42 H36 O2'
_chemical_formula_sum            'C42 H36 O2'
_chemical_formula_weight         572.71
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-I 2ya'
_space_group_name_H-M_alt        'I 1 2/a 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-07-22
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-08-22 deposited with the CCDC.	2020-01-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 108.8630(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.36670(10)
_cell_length_b                   16.1708(2)
_cell_length_c                   15.3924(2)
_cell_measurement_reflns_used    8022
_cell_measurement_temperature    170.00(10)
_cell_measurement_theta_max      75.1970
_cell_measurement_theta_min      4.0730
_cell_volume                     2912.85(6)
_computing_cell_refinement       'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      170.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.959
_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    -54.00 -23.00   0.50    0.05    --  -47.20  84.00 -41.00   62
  2  \w    -18.00  71.00   0.50    0.05    --   47.20 -84.00-161.00  178
  3  \w    -67.00 -27.00   0.50    0.10    --  -99.00  84.00 -41.00   80
  4  \w   -147.00 -79.00   0.50    0.10    --  -99.00 -84.00-161.00  136
  5  \w     35.00 129.00   0.50    0.10    --  103.25 -84.00-161.00  188
  6  \w    102.00 127.00   0.50    0.10    --  103.25  84.00 -41.00   50
  7  \w   -119.00 -71.00   0.50    0.05    --  -47.20-125.00 -90.00   96
  8  \w    -97.00 -72.00   0.50    0.05    --  -47.20-125.00   0.00   50
  9  \w   -120.00 -79.00   0.50    0.05    --  -47.20-125.00 -30.00   82
 10  \w     49.00 119.00   0.50    0.05    --   47.20  38.00 -60.00  140
 11  \w   -117.00 -89.00   0.50    0.10    --  -99.00 -45.00 -90.00   56
 12  \w     83.00 167.00   0.50    0.10    --  103.25  77.00-120.00  168
 13  \w    125.00 151.00   0.50    0.10    --  103.25  15.00  60.00   52
 14  \w     37.00 115.00   0.50    0.10    --  103.25 -45.00  60.00  156
 15  \w    110.00 168.00   0.50    0.10    --  103.25  45.00 -60.00  116
 16  \w     90.00 117.00   0.50    0.10    --  103.25  15.00  60.00   54
 17  \w     93.00 163.00   0.50    0.10    --  103.25  61.00 -90.00  140
 18  \w     91.00 139.00   0.50    0.10    --  103.25  45.00-120.00   96
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy R, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.1260625000
_diffrn_orient_matrix_UB_12      0.0176518000
_diffrn_orient_matrix_UB_13      0.0106527000
_diffrn_orient_matrix_UB_21      -0.0350156000
_diffrn_orient_matrix_UB_22      0.0820315000
_diffrn_orient_matrix_UB_23      -0.0524303000
_diffrn_orient_matrix_UB_31      0.0144641000
_diffrn_orient_matrix_UB_32      0.0451076000
_diffrn_orient_matrix_UB_33      0.0912415000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0174
_diffrn_reflns_av_unetI/netI     0.0160
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.959
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            9791
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.959
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         75.346
_diffrn_reflns_theta_min         4.085
_diffrn_source                   'Rotating-anode X-ray tube'
_diffrn_source_type              'PhotonJet R (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.605
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.51067
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.14e (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_description       block
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.255
_refine_diff_density_min         -0.235
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         2912
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0439
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0521P)^2^+2.4072P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1032
_refine_ls_wR_factor_ref         0.1088
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2713
_reflns_number_total             2912
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc08573d2.cif
_cod_data_source_block           tx1097
_cod_database_code               7126126
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         CHO
_reflns_odcompleteness_completeness 99.68
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     68.13
_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 C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C5(H5A,H5B), C6(H6A,H6B)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C12(H12), C13(H13), C15(H15), C16(H16), C18(H18), C19(H19)
2.c Idealised Me refined as rotating group:
 C20(H20A,H20B,H20C), C21(H21A,H21B,H21C)
;
_shelx_res_checksum              94033
_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 1.506
_oxdiff_exptl_absorpt_empirical_full_min 0.563