2-Methyl-3-(4-nitrophenyl)acrylic acid
Muhammad, Niaz; Tahir, M. Nawaz; Zia-ur-Rehman; Ali, Saqib; Acta Crystallographica Section E 64 (2008) o1717–o1718; doi:10.1107/S1600536808024999

data_2219303
_publ_section_title
;
 2-Methyl-3-(4-nitrophenyl)acrylic acid
;
_journal_coeditor_code           CS2087
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1717
_journal_page_last               o1718
_journal_paper_doi               10.1107/S1600536808024999
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C10 H9 N O4'
_chemical_formula_moiety         'C10 H9 N O4'
_chemical_formula_sum            'C10 H9 N O4'
_chemical_formula_weight         207.18
_chemical_name_systematic
;
2-Methyl-3-(4-nitrophenyl)acrylic acid
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                75.793(2)
_cell_angle_beta                 81.835(3)
_cell_angle_gamma                87.686(2)
_cell_formula_units_Z            2
_cell_length_a                   7.3878(3)
_cell_length_b                   8.1050(5)
_cell_length_c                   8.3402(4)
_cell_measurement_reflns_used    2518
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.13
_cell_measurement_theta_min      2.54
_cell_volume                     479.21(4)
_computing_cell_refinement       'APEX2 (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics
'ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2003)'
_computing_publication_material
'WinGX (Farrugia, 1999) and PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 7.4
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'Bruker Kappa APEXII CCD'
_diffrn_measurement_method       \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  0.0233
_diffrn_reflns_av_sigmaI/netI    0.0220
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            9039
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         29.13
_diffrn_reflns_theta_min         2.54
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.113
_exptl_absorpt_correction_T_max  0.981
_exptl_absorpt_correction_T_min  0.970
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.436
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             216
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.242
_refine_diff_density_min         -0.206
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     140
_refine_ls_number_reflns         2518
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0561
_refine_ls_R_factor_gt           0.0420
_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^)+(0.0713P)^2^+0.0915P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1206
_refine_ls_wR_factor_ref         0.1336
_reflns_number_gt                1926
_reflns_number_total             2518
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cs2087.cif
_cod_data_source_block           I
_cod_database_code               2219303
_cod_database_fobs_code          2219303