Spontaneous symmetry breaking during interrupted crystallization of an axially chiral amino acid derivative.
Sephton, Mark A; Emerson, Christopher R; Zakharov, Lev N; Blakemore, Paul R; Chemical communications (Cambridge, England) 46 (2010) 2094–2096; doi:10.1039/b922028c

data_7105332
_publ_section_title
;
 Spontaneous symmetry breaking during interrupted crystallization of an
 axially chiral amino acid derivative.
;
_journal_issue                   12
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              2094
_journal_page_last               2096
_journal_paper_doi               10.1039/b922028c
_journal_volume                  46
_journal_year                    2010
_chemical_formula_sum            'C26 H36 N2 O4'
_chemical_formula_weight         440.57
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXLTL
_cell_angle_alpha                90.00
_cell_angle_beta                 103.6910(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.5558(7)
_cell_length_b                   10.4979(7)
_cell_length_c                   11.4257(8)
_cell_measurement_reflns_used    3998
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.11
_cell_measurement_theta_min      2.36
_cell_volume                     1230.15(14)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker Apex 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  0.0121
_diffrn_reflns_av_sigmaI/netI    0.0229
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8028
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9866
_exptl_absorpt_correction_T_min  0.9726
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.189
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             476
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.217
_refine_diff_density_min         -0.151
_refine_diff_density_rms         0.029
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.2(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         5304
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0351
_refine_ls_R_factor_gt           0.0329
_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^)+(0.0521P)^2^+0.1137P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0844
_refine_ls_wR_factor_ref         0.0868
_reflns_number_gt                5024
_reflns_number_total             5304
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b922028c.txt
_cod_data_source_block           pb13(bisamide1)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7105332