2-(2-Isopropylanilino)pyridine-3-carboxylic acid
Long, Sihui; Siegler, Maxime; Li, Tonglei; Acta Crystallographica Section E 62 (2006) o4211–o4213; doi:10.1107/S1600536806034131

data_2210288
_publ_section_title
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 2-(2-Isopropylanilino)pyridine-3-carboxylic acid
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_journal_coeditor_code           HK2102
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o4211
_journal_page_last               o4213
_journal_paper_doi               10.1107/S1600536806034131
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C15 H16 N2 O2'
_chemical_formula_moiety         'C15 H16 N2 O2'
_chemical_formula_sum            'C15 H16 N2 O2'
_chemical_formula_weight         256.30
_chemical_melting_point          442.0(10)
_chemical_name_systematic
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2-(2-Isopropylanilino)pyridine-3-carboxylic 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                 104.070(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.242(3)
_cell_length_b                   8.9210(10)
_cell_length_c                   14.367(2)
_cell_measurement_reflns_used    6707
_cell_measurement_temperature    90.0(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2765.2(6)
_computing_cell_refinement       'DENZO--SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        DENZO--SMN
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 1995)'
_computing_publication_material  'SHELXL97 and local procedures'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      90.0(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\w scans at fixed \c = 55\%'
_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  0.0478
_diffrn_reflns_av_sigmaI/netI    0.0647
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            12239
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.9877
_exptl_absorpt_correction_T_min  0.9676
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SCALEPACK; Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.231
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.319
_refine_diff_density_min         -0.286
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     349
_refine_ls_number_reflns         6330
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.1003
_refine_ls_R_factor_gt           0.0513
_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^)+(0.0776P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1186
_refine_ls_wR_factor_ref         0.1415
_reflns_number_gt                3912
_reflns_number_total             6330
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hk2102.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '441-443' was changed to '442.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '441-443' was changed to '442.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2210288
_cod_database_fobs_code          2210288