Bis(4-methoxy-3,4-dihydroquinazolin-1-ium) chloranilate
Gotoh, Kazuma; Ishida, Hiroyuki; Acta Crystallographica Section E 69 (2013) o1482–; doi:10.1107/S1600536813023635

data_2238505
_publ_section_title
;
 Bis(4-methoxy-3,4-dihydroquinazolin-1-ium) chloranilate
;
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1482
_journal_paper_doi               10.1107/S1600536813023635
_journal_volume                  69
_journal_year                    2013
_chemical_formula_iupac          '2C9 H11 N2 O +, C6 Cl2 O4 2-'
_chemical_formula_moiety         '2(C9 H11 N2 O +), C6 Cl2 O4 2-'
_chemical_formula_sum            'C24 H22 Cl2 N4 O6'
_chemical_formula_weight         533.37
_chemical_name_common
;
Bis(4-methoxy-3,4-dihydroquinazolin-1-ium) chloranilate
;
_chemical_name_systematic
;
Bis(4-methoxy-3,4-dihydroquinazolin-1-ium)
2,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,4-diolate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                97.869(4)
_cell_angle_beta                 91.660(6)
_cell_angle_gamma                100.968(5)
_cell_formula_units_Z            1
_cell_length_a                   4.9971(4)
_cell_length_b                   8.6363(4)
_cell_length_c                   13.5808(9)
_cell_measurement_reflns_used    6359
_cell_measurement_temperature    200.0(10)
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      3.0
_cell_volume                     569.06(7)
_computing_cell_refinement       'PROCESS-AUTO (Rigaku/MSC, 2004)'
_computing_data_collection       'PROCESS-AUTO (Rigaku/MSC, 2004)'
_computing_data_reduction        'CrystalStructure (Rigaku/MSC, 2004)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 2012)'
_computing_publication_material
'CrystalStructure (Rigaku/MSC, 2004) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200.0(10)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID II'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.1990
_diffrn_reflns_av_sigmaI/netI    0.2257
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7422
_diffrn_reflns_theta_full        27.87
_diffrn_reflns_theta_max         27.87
_exptl_absorpt_coefficient_mu    0.337
_exptl_absorpt_correction_T_max  0.987
_exptl_absorpt_correction_T_min  0.887
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
(<i>NUMABS</i>; Higashi, 1999)
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.556
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             276.00
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.887
_refine_diff_density_min         -0.543
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.843
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2692
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.843
_refine_ls_R_factor_all          0.0949
_refine_ls_R_factor_gt           0.0824
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1680
_refine_ls_wR_factor_ref         0.1770
_reflns_number_gt                1913
_reflns_number_total             2692
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            hg5342.cif
_cod_data_source_block           I
_cod_original_formula_sum        'C24 H22 Cl2 N4 O6 '
_cod_database_code               2238505
_cod_database_fobs_code          2238505