Cooperative Effects of o- and m-Methyl Groups on the Intramolecular Charge-Transfer Emission Properties of Dibenzoylmethanatoboron Difluorides
Tanaka, Mirai; Muraoka, Shunsuke; Matsui, Yasunori; Ohta, Eisuke; Ogaki, Takuya; Mizuno, Kazuhiko; Ikeda, Hiroshi; Photochem. Photobiol. Sci.  (2017) –; doi:10.1039/C7PP00005G

data_1545665
_publ_section_title
;
 Cooperative Effects of o- and m-Methyl Groups on the Intramolecular
 Charge-Transfer Emission Properties of Dibenzoylmethanatoboron
 Difluorides
;
_journal_name_full               'Photochem. Photobiol. Sci.'
_journal_paper_doi               10.1039/C7PP00005G
_journal_year                    2017
_chemical_formula_sum            'C16 H13 B F2 O2'
_chemical_formula_weight         286.07
_chemical_melting_point          125.0(10)
_chemical_name_common            o-tol
_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_creation_method           SHELXL-97
_audit_update_record
;
2016-12-23 deposited with the CCDC.
2017-03-31 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                   8.2331(6)
_cell_length_b                   13.1144(10)
_cell_length_c                   25.5836(19)
_cell_measurement_reflns_used    9014
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.35
_cell_measurement_theta_min      3.03
_cell_volume                     2762.3(4)
_computing_molecular_graphics    'Yadokari-XG 2009 (Wakita Nemoto et al., 2009)'
_computing_publication_material  'Yadokari-XG 2009 (Wakita,Nemoto et al., 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       /w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.1021
_diffrn_reflns_av_sigmaI/netI    0.0633
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            24716
_diffrn_reflns_theta_full        27.36
_diffrn_reflns_theta_max         27.36
_diffrn_reflns_theta_min         3.03
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.0833
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.376
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             1184
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.465
_refine_diff_density_min         -0.238
_refine_diff_density_rms         0.058
_refine_ls_extinction_coef       0.008(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.088
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         3121
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.1237
_refine_ls_R_factor_gt           0.0758
_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^)+(0.1231P)^2^+0.7127P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2059
_refine_ls_wR_factor_ref         0.2586
_reflns_number_gt                1798
_reflns_number_total             3121
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7pp00005g2.cif
_cod_data_source_block           o-tol
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '124-126' was changed to '125.0(10)'
- the average value was taken and precision was estimated.

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               1545665