2-Chloro-3-(4-methylanilino)naphthalene-1,4-dione
Gao, Li-Jiu; Liu, Yun; Acta Crystallographica Section E 68 (2012) o3378–; doi:10.1107/S1600536812045229

data_2236850
_publ_section_title
;
 2-Chloro-3-(4-methylanilino)naphthalene-1,4-dione
;
_journal_coeditor_code           DS2213
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3378
_journal_paper_doi               10.1107/S1600536812045229
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C17 H12 Cl N O2'
_chemical_formula_moiety         'C17 H12 Cl N O2'
_chemical_formula_sum            'C17 H12 Cl N O2'
_chemical_formula_weight         297.73
_chemical_melting_point          475
_chemical_name_common            2-chloro-3-(p-tolylamino)naphthalene-1,4-dione
_chemical_name_systematic
;
2-Chloro-3-(4-methylanilino)naphthalene-1,4-dione
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_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_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.1614(10)
_cell_length_b                   22.4915(18)
_cell_length_c                   5.0444(4)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      12
_cell_measurement_theta_min      9
_cell_volume                     1379.79(19)
_computing_cell_refinement       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_collection       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
'SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_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  0.0364
_diffrn_reflns_av_sigmaI/netI    0.0234
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            15471
_diffrn_reflns_theta_full        25.40
_diffrn_reflns_theta_max         25.40
_diffrn_reflns_theta_min         1.81
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  2
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.28
_exptl_absorpt_correction_T_max  0.972
_exptl_absorpt_correction_T_min  0.946
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(XCAD4; Harms & Wocadlo, 1995)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.433
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.410
_refine_diff_density_min         -0.415
_refine_ls_extinction_coef       0.083(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.268
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     195
_refine_ls_number_reflns         2479
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.268
_refine_ls_R_factor_all          0.0452
_refine_ls_R_factor_gt           0.0398
_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^)+(0.0725P)^2^+0.1832P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1038
_refine_ls_wR_factor_ref         0.1193
_reflns_number_gt                2420
_reflns_number_total             2479
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ds2213.cif
_cod_data_source_block           I
_cod_database_code               2236850
_cod_database_fobs_code          2236850