Spontaneous resolution of two homochiral ferroelectric cadmium(ii) frameworks and an achiral framework from a one-pot reaction involving achiral rigid ligands
Su, Zhi; Chen, Man-Sheng; Fan, Jian; Chen, Min; Chen, Shui-Sheng; Luo, Li; Sun, Wei-Yin; CrystEngComm 12 (2010) 2040–; doi:10.1039/c0ce00054j

data_7212766
_publ_section_title
;
 Spontaneous resolution of two homochiral ferroelectric cadmium(ii)
 frameworks and an achiral framework from a one-pot reaction involving
 achiral rigid ligands
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              2040
_journal_paper_doi               10.1039/c0ce00054j
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         'C23 H16 Cd N6 O4, 2(H2 O)'
_chemical_formula_sum            'C23 H20 Cd N6 O6'
_chemical_formula_weight         588.82
_chemical_name_systematic
;
?
;
_space_group_IT_number           78
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4cw'
_symmetry_space_group_name_H-M   'P 43'
_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                   9.0752(5)
_cell_length_b                   9.0752(5)
_cell_length_c                   27.014(3)
_cell_measurement_reflns_used    4251
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.25
_cell_measurement_theta_min      2.24
_cell_volume                     2224.9(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      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0642
_diffrn_reflns_av_sigmaI/netI    0.0611
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            11301
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         25.24
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    1.037
_exptl_absorpt_correction_T_max  0.8770
_exptl_absorpt_correction_T_min  0.7461
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs,bruker(2000)
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.746
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       claviform
_exptl_crystal_F_000             1168
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.905
_refine_diff_density_min         -0.582
_refine_diff_density_rms         0.078
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.959
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         4010
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.959
_refine_ls_R_factor_all          0.0417
_refine_ls_R_factor_gt           0.0389
_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^)+(0.0530P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0897
_refine_ls_wR_factor_ref         0.0914
_reflns_number_gt                3810
_reflns_number_total             4010
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0ce00054j.txt
_cod_data_source_block           1L
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_database_code               7212766