Redox Active Quinoidal 1,2,4-Benzotriazines.
Zissimou, Georgia A.; Kourtellaris, Andreas; Manoli, Maria; Koutentis, Panayiotis A.; The Journal of organic chemistry 83 (2018) 9391–9402; doi:10.1021/acs.joc.8b01311

data_4035331
_publ_section_title
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 Redox Active Quinoidal 1,2,4-Benzotriazines.
;
_journal_issue                   16
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              9391
_journal_page_last               9402
_journal_paper_doi               10.1021/acs.joc.8b01311
_journal_volume                  83
_journal_year                    2018
_chemical_formula_moiety         'C19 H8 F5 N3 O'
_chemical_formula_sum            'C19 H8 F5 N3 O'
_chemical_formula_weight         389.28
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2016/4
_cell_angle_alpha                90
_cell_angle_beta                 95.028(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.1586(7)
_cell_length_b                   6.2942(4)
_cell_length_c                   20.7512(12)
_cell_measurement_reflns_used    2617
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      73.8070
_cell_measurement_theta_min      4.0630
_cell_volume                     1581.95(16)
_computing_structure_refinement  'SHELXL-2016/4 (Sheldrick, 2016)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.4223
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0683
_diffrn_reflns_av_unetI/netI     0.0715
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            10357
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         74.141
_diffrn_reflns_theta_min         4.065
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    1.271
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.83249
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.46 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.634
_exptl_crystal_description       plate
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.414
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         3152
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0918
_refine_ls_R_factor_gt           0.0585
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1037P)^2^+0.5759P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1560
_refine_ls_wR_factor_ref         0.2158
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2086
_reflns_number_total             3152
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b01311_si_002.cif
_cod_data_source_block           shelx
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4035331
_shelx_shelxl_version_number     2016/4
_oxdiff_exptl_absorpt_empirical_full_min 0.730
_oxdiff_exptl_absorpt_empirical_full_max 1.906
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              63968
_shelx_hkl_checksum              8332