Organic room-temperature phosphorescence from halogen-bonded organic frameworks: hidden electronic effects in rigidified chromophores.
Zhou, Jiawang; Stojanović, Ljiljana; Berezin, Andrey A.; Battisti, Tommaso; Gill, Abigail; Kariuki, Benson M.; Bonifazi, Davide; Crespo-Otero, Rachel; Wasielewski, Michael R.; Wu, Yi-Lin; Chemical science 12 (2020) 767–773; doi:10.1039/d0sc04646a

data_1560148
_publ_section_title
;
 Organic room-temperature phosphorescence from halogen-bonded organic
 frameworks: hidden electronic effects in rigidified chromophores.
;
_journal_issue                   2
_journal_name_full               'Chemical science'
_journal_page_first              767
_journal_page_last               773
_journal_paper_doi               10.1039/d0sc04646a
_journal_volume                  12
_journal_year                    2020
_chemical_formula_moiety         '2(C11 H10 Br2 O4)'
_chemical_formula_sum            'C22 H20 Br4 O8'
_chemical_formula_weight         732.02
_chemical_name_systematic
'tetraethyl 2,3,6,7-tetrabromonaphthalene-1,4,5,8-tetracarboxylate'
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-08-28
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-08-28 deposited with the CCDC.	2020-11-05 downloaded from the CCDC.
;
_cell_angle_alpha                72.585(5)
_cell_angle_beta                 69.310(5)
_cell_angle_gamma                89.363(4)
_cell_formula_units_Z            2
_cell_length_a                   9.5351(5)
_cell_length_b                   12.0414(6)
_cell_length_c                   12.8133(8)
_cell_measurement_reflns_used    3019
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.5960
_cell_measurement_theta_min      4.1630
_cell_volume                     1305.80(14)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (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_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.5082
_diffrn_detector_type            Atlas
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.819
_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    -78.00  14.00   1.00   19.42    --  -11.21 -57.00  60.00   92
  2  \w    -74.00  19.00   1.00   19.42    --  -11.21 -77.00 -60.00   93
  3  \w    -36.00  61.00   1.00   19.42    --  -11.21  57.00-150.00   97
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0301576000
_diffrn_orient_matrix_UB_12      0.0012933000
_diffrn_orient_matrix_UB_13      0.0429650000
_diffrn_orient_matrix_UB_21      -0.0702673000
_diffrn_orient_matrix_UB_22      -0.0257481000
_diffrn_orient_matrix_UB_23      0.0451549000
_diffrn_orient_matrix_UB_31      0.0234067000
_diffrn_orient_matrix_UB_32      -0.0564789000
_diffrn_orient_matrix_UB_33      0.0020430000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0212
_diffrn_reflns_av_unetI/netI     0.0434
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.819
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10370
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.819
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.855
_diffrn_reflns_theta_min         3.392
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    6.207
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.632
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Numerical absorption correction based on gaussian integration over
			a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.862
_exptl_crystal_description       block
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.131
_exptl_crystal_size_min          0.084
_refine_diff_density_max         0.750
_refine_diff_density_min         -0.743
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     311
_refine_ls_number_reflns         6162
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0773
_refine_ls_R_factor_gt           0.0426
_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^)+(0.0286P)^2^+1.1870P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0937
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4079
_reflns_number_total             6162
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0sc04646a2.cif
_cod_data_source_block           ylw1902b
_cod_depositor_comments
'Adding full bibliography for 1560147--1560149.cif.'
_cod_database_code               1560148
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C12 H12 n o Br'
_shelx_estimated_absorpt_t_max   0.624
_shelx_estimated_absorpt_t_min   0.306
_reflns_odcompleteness_completeness 99.81
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C7(H7A,H7B), C10(H10A,H10B), C18(H18A,H18B), C21(H21A,H21B)
2.b Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C11(H11A,H11B,H11C), C19(H19A,H19B,H19C), C22(H22A,H22B,H22C)
;
_shelx_res_checksum              69787
_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
- Detector area scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.788
_oxdiff_exptl_absorpt_empirical_full_min 0.709