Bright persistent luminescence from pure organic molecules through moderate intermolecular heavy atom effect
Xue, peng chong; Wang, Panpan; Chen, Peng; Yao, Boqi; Gong, Peng; sun, Jiabao; zhang, Zhenqi; Lu, Ran; Chem. Sci.  (2015) –; doi:10.1039/C5SC03739E

data_1540473
_publ_section_title
;
 Bright persistent luminescence from pure organic molecules through
 moderate intermolecular heavy atom effect
;
_journal_name_full               'Chem. Sci.'
_journal_paper_doi               10.1039/C5SC03739E
_journal_year                    2015
_chemical_formula_sum            'C18 H20 Br N'
_chemical_formula_weight         330.25
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_doi                 10.5517/cc1jpz28
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-08-31 deposited with the CCDC.
2015-11-02 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.319(3)
_cell_length_b                   8.0724(16)
_cell_length_c                   24.455(5)
_cell_measurement_temperature    293(2)
_cell_volume                     3221.5(11)
_computing_cell_refinement       RAPID-AUTO
_computing_data_collection       'RAPID-AUTO (Rigaku Corporation, 1998)'
_computing_data_reduction
'CrystalStructure (Rigaku/MSC and Rigaku Corporation, 2002)'
_computing_molecular_graphics    'ORTEP-II (Johnson, 1976)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       '\w scan'
_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  0.1764
_diffrn_reflns_av_sigmaI/netI    0.1022
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            27947
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.00
_exptl_absorpt_coefficient_mu    2.543
_exptl_absorpt_correction_T_max  0.700
_exptl_absorpt_correction_T_min  0.690
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.362
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1360
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.564
_refine_diff_density_min         -0.852
_refine_diff_density_rms         0.171
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         3687
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.1730
_refine_ls_R_factor_gt           0.0730
_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^)+(0.0686P)^2^+1.8047P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1453
_refine_ls_wR_factor_ref         0.1820
_reflns_number_gt                1672
_reflns_number_total             3687
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5sc03739e4.cif
_cod_data_source_block           c
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               1540473