4-Butylamino-3-nitrobenzoic acid
Narendra Babu, Shivanagere Nagojappa; Abdul Rahim, Aisyah Saad; Osman, Hasnah; Jebas, Samuel Robinson; Fun, Hoong-Kun; Acta Crystallographica Section E 65 (2009) o1122–o1123; doi:10.1107/S1600536809014780

data_2221625
_publ_section_title
;
 4-Butylamino-3-nitrobenzoic acid
;
_journal_coeditor_code           CI2784
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1122
_journal_page_last               o1123
_journal_paper_doi               10.1107/S1600536809014780
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C11 H14 N2 O4'
_chemical_formula_moiety         'C11 H14 N2 O4'
_chemical_formula_sum            'C11 H14 N2 O4'
_chemical_formula_weight         238.24
_chemical_name_common            '4-(butylamino)-3-nitrobenzoic acid'
_chemical_name_systematic
;
4-Butylamino-3-nitrobenzoic acid
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 90.233(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   14.5188(6)
_cell_length_b                   13.8801(6)
_cell_length_c                   22.5694(9)
_cell_measurement_reflns_used    9852
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      31.61
_cell_measurement_theta_min      2.22
_cell_volume                     4548.2(3)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT (Bruker, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker SMART APEXII CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0663
_diffrn_reflns_av_sigmaI/netI    0.0502
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            137935
_diffrn_reflns_theta_full        31.50
_diffrn_reflns_theta_max         31.50
_diffrn_reflns_theta_min         0.90
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_T_max  0.9861
_exptl_absorpt_correction_T_min  0.9461
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             2016
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.411
_refine_diff_density_min         -0.227
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     622
_refine_ls_number_reflns         15056
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0846
_refine_ls_R_factor_gt           0.0643
_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^)+(0.0774P)^2^+1.2697P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1521
_refine_ls_wR_factor_ref         0.1633
_reflns_number_gt                11743
_reflns_number_total             15056
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ci2784.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2221625
_cod_database_fobs_code          2221625