Crystal structures of 6-nitroquinazolin-4(3<i>H</i>)-one, 6-aminoquinazolin-4(3<i>H</i>)-one and 4-aminoquinazoline hemihydrochloride dihydrate
Turgunov, Kambarali; Ziyadullaev, Mirjalol; Khoshimov, Farkhod; Karimov, Rikhsiboy; Elmuradov, Burkhon; Acta Crystallographica Section E 77 (2021) –; doi:10.1107/S2056989021008823

data_2243910
_publ_section_title
;
 Crystal structures of 6-nitroquinazolin-4(3<i>H</i>)-one,
 6-aminoquinazolin-4(3<i>H</i>)-one and 4-aminoquinazoline
 hemihydrochloride dihydrate
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2056989021008823
_journal_volume                  77
_journal_year                    2021
_chemical_formula_iupac          'C8 H7 N3 O'
_chemical_formula_moiety         'C8 H7 N3 O'
_chemical_formula_sum            'C8 H7 N3 O'
_chemical_formula_weight         161.17
_chemical_melting_point          589(2)
_chemical_name_systematic
;
6-Aminoquinazolin-4(3<i>H</i>)-one
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_Hall           'P 2c -2ac'
_space_group_name_H-M_alt        'P c a 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.4535(5)
_cell_length_b                   4.9510(2)
_cell_length_c                   21.6188(8)
_cell_measurement_reflns_used    5076
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      75.8340
_cell_measurement_theta_min      4.0650
_cell_volume                     1439.99(10)
_computing_cell_refinement
;
CrysAlisPro (Rigaku OD, 2018)
;
_computing_data_collection
;
CrysAlisPro (Rigaku OD, 2018)
;
_computing_data_reduction
;
CrysAlisPro (Rigaku OD, 2018)
;
_computing_molecular_graphics
;
XP in SHELXTL (Sheldrick, 2008)
;
_computing_publication_material
;
publCIF (Westrip, 2010)
;
_computing_structure_refinement
;
<i>SHELXL2014/7</i> (Sheldrick, 2015b)
;
_computing_structure_solution
;
<i>SHELXT2018/2</i> (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.2576
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Rigaku Xcalibur, Ruby'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0698
_diffrn_reflns_av_unetI/netI     0.0391
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            22195
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         76.138
_diffrn_reflns_theta_min         4.090
_diffrn_source                   'Enhance (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.859
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.71954
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlisPro; Rigaku OD, 2018)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.487
_exptl_crystal_description       prism
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.166
_refine_diff_density_min         -0.145
_refine_ls_abs_structure_details
;
Flack <i>x</i> determined using 1053 quotients
[(<i>I</i>^+^)-(<i>I</i>^-^)]/[(<i>I</i>^+^)+(<i>I</i>^-^)]
(Parsons <i>et al.</i>,  2013)
;
_refine_ls_abs_structure_Flack   0.2(2)
_refine_ls_extinction_coef       0.0034(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method
;
SHELXL-2014/7 (Sheldrick, 2015)
;
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     242
_refine_ls_number_reflns         2976
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0480
_refine_ls_R_factor_gt           0.0360
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0516P)^2^+0.1440P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0885
_refine_ls_wR_factor_ref         0.0976
_reflns_number_gt                2489
_reflns_number_total             2976
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            dj2030sup1.cif
_cod_data_source_block           II
_cod_database_code               2243910
_shelx_hkl_checksum              15497
_shelx_res_checksum              96397
_cod_database_fobs_code 2243910