Solution growth and thermal treatment of crystals lead to two new forms of 2-((2,6-dimethylphenyl)amino)benzoic acid
Hu, Rong; Zhoujin, Yunping; Liu, Meng; Zhang, Mingtao; Parkin, Sean; Zhou, Panpan; Wang, Jianzhi; Yu, Faquan; Long, Sihui; RSC Advances 8 (2018) 15459–; doi:10.1039/C7RA13353G

data_7230555
_publ_section_title
;
 Solution growth and thermal treatment of crystals lead to two new forms
 of 2-((2,6-dimethylphenyl)amino)benzoic acid
;
_journal_issue                   28
_journal_name_full               'RSC Advances'
_journal_page_first              15459
_journal_paper_doi               10.1039/C7RA13353G
_journal_volume                  8
_journal_year                    2018
_chemical_formula_moiety         'C15 H15 N O2'
_chemical_formula_sum            'C15 H15 N O2'
_chemical_formula_weight         241.28
_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
_audit_update_record
;
2017-12-09 deposited with the CCDC.
2018-04-18 downloaded from the CCDC.
;
_cell_angle_alpha                73.3544(8)
_cell_angle_beta                 83.3366(8)
_cell_angle_gamma                73.6078(8)
_cell_formula_units_Z            2
_cell_length_a                   7.4127(1)
_cell_length_b                   8.0298(1)
_cell_length_c                   10.9583(2)
_cell_measurement_reflns_used    2711
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1.0
_cell_volume                     599.090(16)
_computing_cell_refinement       'Denzo-SMN (Nonius, 1997)'
_computing_data_collection       'Collect (Nonius, 2002)'
_computing_data_reduction        'Denzo-SMN (Nonius, 1997)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'XP in SHELXTL (Sheldrick, 1995)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
_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  0.0233
_diffrn_reflns_av_sigmaI/netI    0.0307
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5421
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9868
_exptl_absorpt_correction_T_min  0.9569
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Scalepack (Otwinowsky & Minor, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.338
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             256
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.593
_refine_diff_density_min         -0.576
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         2737
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0434
_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^)+(0.0562P)^2^+0.2835P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1140
_refine_ls_wR_factor_ref         0.1190
_reflns_number_gt                2367
_reflns_number_total             2737
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c7ra13353g1.cif
_cod_data_source_block           shelxl
_cod_original_cell_volume        599.091(16)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7230555