Efficient room-temperature phosphorescence based on a pure organic sulfur-containing heterocycle: folding-induced spin–orbit coupling enhancement
Liu, Haichao; Gao, Yu; Cao, Jungang; Li, Tingxuan; Wen, Yating; Ge, Yunpeng; Zhang, Lili; Pan, Guocui; Zhou, Tong; Yang, Bing; Materials Chemistry Frontiers 2 (2018) 1853–; doi:10.1039/C8QM00320C

data_1554224
_publ_section_title
;
 Efficient room-temperature phosphorescence based on a pure organic
 sulfur-containing heterocycle: folding-induced spin--orbit coupling
 enhancement
;
_journal_issue                   10
_journal_name_full               'Materials Chemistry Frontiers'
_journal_page_first              1853
_journal_paper_doi               10.1039/C8QM00320C
_journal_volume                  2
_journal_year                    2018
_chemical_formula_moiety         'C24 H14 S4'
_chemical_formula_sum            'C24 H14 S4'
_chemical_formula_weight         430.59
_chemical_name_systematic        1,2'-bithianthrene
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2018-04-21 deposited with the CCDC.
2018-08-08 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 99.514(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   23.376(5)
_cell_length_b                   6.0798(12)
_cell_length_c                   14.364(3)
_cell_measurement_reflns_used    13913
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.41
_cell_measurement_theta_min      3.01
_cell_volume                     2013.4(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  bruker
_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  0.0533
_diffrn_reflns_av_sigmaI/netI    0.0646
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            14316
_diffrn_reflns_theta_full        28.22
_diffrn_reflns_theta_max         28.22
_diffrn_reflns_theta_min         0.88
_exptl_absorpt_coefficient_mu    0.479
_exptl_absorpt_correction_T_max  0.9536
_exptl_absorpt_correction_T_min  0.9403
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.421
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             888
_exptl_crystal_preparation       Luminescent
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: dichlomethane and methanol'
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.306
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         4942
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.0923
_refine_ls_R_factor_gt           0.0436
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0496P)^2^+0.2417P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0917
_refine_ls_wR_factor_ref         0.1233
_reflns_number_gt                2987
_reflns_number_total             4942
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8qm00320c2.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1554224