Polymorphism and Pseudopolymorphism of an Aromatic Amide: Spontaneous Resolution and Crystal-to-Crystal phase Transition
Kato, Takako; Okamoto, Iwao; Masu, Hyuma; Katagiri, Kosuke; Tominaga, Masahide; Yamaguchi, Kentaro; Kagechika, Hiroyuki; Azumaya, Isao; Crystal Growth & Design 8 (2008) 3871–; doi:10.1021/cg800658t

data_4503853
_publ_section_title
;
 Polymorphism and Pseudopolymorphism of an Aromatic Amide: Spontaneous
 Resolution and Crystal-to-Crystal phase Transition
;
_journal_issue                   10
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              3871
_journal_paper_doi               10.1021/cg800658t
_journal_volume                  8
_journal_year                    2008
_chemical_formula_sum            'C22 H18 F2 N2 O2'
_chemical_formula_weight         380.38
_space_group_IT_number           41
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'A 2 -2ab'
_symmetry_space_group_name_H-M   'A b a 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.8296(17)
_cell_length_b                   7.4296(7)
_cell_length_c                   13.5221(13)
_cell_measurement_reflns_used    2468
_cell_measurement_temperature    90
_cell_measurement_theta_max      27.76
_cell_measurement_theta_min      2.28
_cell_volume                     1791.2(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'Bruker ApexII CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0185
_diffrn_reflns_av_sigmaI/netI    0.0217
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4705
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.21
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    0.105
_exptl_absorpt_correction_T_max  0.9895
_exptl_absorpt_correction_T_min  0.9591
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS Sheldrick 1996'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.411
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.145
_refine_diff_density_min         -0.236
_refine_diff_density_rms         0.048
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.3(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   2.390
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     128
_refine_ls_number_reflns         1963
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      2.390
_refine_ls_R_factor_all          0.0325
_refine_ls_R_factor_gt           0.0308
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0555
_refine_ls_wR_factor_ref         0.0558
_reflns_number_gt                1881
_reflns_number_total             1963
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg800658t_si_002.cif
_cod_data_source_block           a0701171tka(Form-II)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Aba2
_cod_database_code               4503853