Spontaneous racemic resolution ‒ towards control of molecular recognition nature
Białońska, Agata; Ciunik, Zbigniew; CrystEngComm 15 (2013) 6448–; doi:10.1039/c3ce40778k

data_7210336
_publ_section_title
;
 Spontaneous racemic resolution -- towards control of molecular
 recognition nature
;
_journal_issue                   33
_journal_name_full               CrystEngComm
_journal_page_first              6448
_journal_paper_doi               10.1039/c3ce40778k
_journal_volume                  15
_journal_year                    2013
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C23 H27 N2 O4, C11 H9 N4 O8, C2 H6 O, H2 O'
_chemical_formula_sum            'C36 H44 N6 O14'
_chemical_formula_weight         784.77
_chemical_name_systematic
;
brucinium N-(3,5-dinitrobenzoyl)-D-asparaginate ethanol solvate hydrate
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 101.94(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.358(3)
_cell_length_b                   8.354(2)
_cell_length_c                   18.078(2)
_cell_measurement_reflns_used    4526
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.978
_cell_measurement_theta_min      3.304
_cell_volume                     1826.0(7)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21t (release 14-08-2012 CrysAlis171 .NET)
(compiled Aug 14 2012,18:12:40)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21t (release 14-08-2012 CrysAlis171 .NET)
(compiled Aug 14 2012,18:12:40)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21t (release 14-08-2012 CrysAlis171 .NET)
(compiled Aug 14 2012,18:12:40)
;
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution
;
SHELXL-97 (Sheldrick, G. M. (2008). <i>Acta Cryst.</i> <b>A64</b>, 112-122.)
;
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Xcalibur, Sapphire2'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0819
_diffrn_reflns_av_unetI/netI     0.1205
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            13073
_diffrn_reflns_point_group_measured_fraction_full 0.868
_diffrn_reflns_point_group_measured_fraction_max 0.855
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.978
_diffrn_reflns_theta_min         3.304
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_description       plate
_exptl_crystal_F_000             828
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.300
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.338
_refine_diff_density_min         -0.583
_refine_diff_density_rms         0.087
_refine_ls_abs_structure_details
;
Flack x determined using 1213 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   -3.3(10)
_refine_ls_extinction_coef       0.050(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     516
_refine_ls_number_reflns         6811
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.1125
_refine_ls_R_factor_gt           0.0766
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
w=1/[\s^2^(Fo^2^)+(0.1140P)^2^]
where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1959
_refine_ls_wR_factor_ref         0.2120
_reflns_Friedel_coverage         0.614
_reflns_Friedel_fraction_full    0.723
_reflns_Friedel_fraction_max     0.700
_reflns_number_gt                4307
_reflns_number_total             6811
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c3ce40778k.txt
_cod_data_source_block           bdnbdn(1)
_cod_database_code               7210336