Solid-State Emission Enhancement via Molecular Engineering of Benzofuran Derivatives.
Grolleau, Jérémie; Petrov, Ravil; Allain, Magali; Skene, William G.; Frère, Pierre; ACS omega 3 (2018) 18542–18552; doi:10.1021/acsomega.8b02384

data_4516175
_publ_section_title
;
 Solid-State Emission Enhancement via Molecular Engineering of Benzofuran
 Derivatives.
;
_journal_issue                   12
_journal_name_full               'ACS omega'
_journal_page_first              18542
_journal_page_last               18552
_journal_paper_doi               10.1021/acsomega.8b02384
_journal_volume                  3
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C20 H14 O2'
_chemical_formula_sum            'C20 H14 O2'
_chemical_formula_weight         286.31
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      33
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2017-04-07T09:56:29-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   11.0189(3)
_cell_length_b                   5.6659(2)
_cell_length_c                   46.0573(15)
_cell_measurement_reflns_used    12803
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      76.382
_cell_measurement_theta_min      3.793
_cell_volume                     2875.45(16)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41r (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41r (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41r (Rigaku OD, 2015)'
_computing_molecular_graphics    'DIAMOND 3.2k (Crystal Impact GbR, 2014)'
_computing_publication_material  'WinGX publication routines (Farrugia, 2012)'
_computing_structure_refinement  'SHELXL-2016/4 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXS-2013/1 (Sheldrick, 2013)'
_diffrn_ambient_temperature      150.00(10)
_diffrn_detector_area_resol_mean 5.199
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'SuperNova, Single source at offset, AtlasS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0336
_diffrn_reflns_av_unetI/netI     0.0236
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       57
_diffrn_reflns_limit_l_min       -57
_diffrn_reflns_number            28174
_diffrn_reflns_point_group_measured_fraction_full 0.969
_diffrn_reflns_point_group_measured_fraction_max 0.968
_diffrn_reflns_theta_full        77
_diffrn_reflns_theta_max         77.091
_diffrn_reflns_theta_min         7.879
_exptl_absorpt_coefficient_mu    0.672
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.34375
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        CrysAlisPro 1.171.38.41r (Rigaku Oxford Diffraction, 2015)
        Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.323
_exptl_crystal_description       needle
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.287
_exptl_crystal_size_mid          0.068
_exptl_crystal_size_min          0.051
_refine_diff_density_max         0.158
_refine_diff_density_min         -0.155
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details
;
 Flack x determined using 2598 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.06(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     397
_refine_ls_number_reflns         5865
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0308
_refine_ls_R_factor_gt           0.0288
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0358P)^2^+0.3589P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0699
_refine_ls_wR_factor_ref         0.0722
_reflns_Friedel_coverage         0.929
_reflns_Friedel_fraction_full    0.945
_reflns_Friedel_fraction_max     0.944
_reflns_number_gt                5648
_reflns_number_total             5865
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ao8b02384_si_006.cif
_cod_data_source_block           new
_cod_database_code               4516175