<i>N</i>-(2,6-Dimethylphenyl)maleamic acid
Gowda, B. Thimme; Tokarčík, Miroslav; Kožíšek, Jozef; Shakuntala, K.; Fuess, Hartmut; Acta Crystallographica Section E 65 (2009) o2807–; doi:10.1107/S1600536809042470

data_2223646
_publ_section_title
;
 <i>N</i>-(2,6-Dimethylphenyl)maleamic acid
;
_journal_coeditor_code           BT5099
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2807
_journal_paper_doi               10.1107/S1600536809042470
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C12 H13 N O3'
_chemical_formula_moiety         'C12 H13 N O3'
_chemical_formula_sum            'C12 H13 N O3'
_chemical_formula_weight         219.23
_chemical_name_systematic
;
<i>N</i>-(2,6-Dimethylphenyl)maleamic acid
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   12.5268(4)
_cell_length_b                   12.9226(4)
_cell_length_c                   14.6835(5)
_cell_measurement_reflns_used    20238
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      29.4375
_cell_measurement_theta_min      2.0929
_cell_volume                     2376.95(13)
_computing_cell_refinement
;
CrysAlis Pro (Oxford Diffraction, 2009)
;
_computing_data_collection
;
CrysAlis Pro (Oxford Diffraction, 2009)
;
_computing_data_reduction
;
CrysAlis Pro (Oxford Diffraction, 2009)
;
_computing_molecular_graphics
;
ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2002)
;
_computing_publication_material
;
SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and WinGX
(Farrugia, 1999)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 10.434
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur Ruby Gemini'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0251
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            38472
_diffrn_reflns_theta_full        25.59
_diffrn_reflns_theta_max         25.59
_diffrn_reflns_theta_min         2.1
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.955
_exptl_absorpt_correction_T_min  0.940
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlis Pro; Oxford Diffraction, 2009)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.225
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.54
_exptl_crystal_size_min          0.48
_refine_diff_density_max         0.143
_refine_diff_density_min         -0.124
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     305
_refine_ls_number_reflns         2533
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0378
_refine_ls_R_factor_gt           0.0319
_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^)+(0.0646P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0866
_refine_ls_wR_factor_ref         0.0885
_reflns_number_gt                2201
_reflns_number_total             2533
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bt5099.cif
_cod_data_source_block           I
_cod_database_code               2223646
_cod_database_fobs_code          2223646