Homochiral crystallization of helical coordination chains bridged by achiral ligands: can it be controlled by the ligand structure?
Wang, Yong-Tao; Tong, Ming-Liang; Fan, Hai-Hua; Wang, He-Zhou; Chen, Xiao-Ming; Dalton transactions (Cambridge, England : 2003)  (2005) 424–426; doi:10.1039/b416412a

data_7008069
_publ_section_title
;
 Homochiral crystallization of helical coordination chains bridged by
 achiral ligands: can it be controlled by the ligand structure?
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              424
_journal_page_last               426
_journal_paper_doi               10.1039/b416412a
_journal_year                    2005
_chemical_formula_sum            'C12 H8 Cd I2 N4 O'
_chemical_formula_weight         590.42
_chemical_name_systematic
;
?
;
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 112.356(19)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.057(7)
_cell_length_b                   14.116(14)
_cell_length_c                   8.743(9)
_cell_measurement_temperature    293(2)
_cell_volume                     805.5(14)
_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 0.883
_diffrn_measured_fraction_theta_max 0.883
_diffrn_measurement_device_type  '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  0.0071
_diffrn_reflns_av_sigmaI/netI    0.0165
_diffrn_reflns_limit_h_max       3
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            1597
_diffrn_reflns_theta_full        24.73
_diffrn_reflns_theta_max         24.73
_diffrn_reflns_theta_min         2.52
_exptl_absorpt_coefficient_mu    5.188
_exptl_absorpt_correction_T_max  0.6581
_exptl_absorpt_correction_T_min  0.5432
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            pale-yellow
_exptl_crystal_density_diffrn    2.434
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             540
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.837
_refine_diff_density_min         -0.673
_refine_diff_density_rms         0.129
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.03(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         1595
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0359
_refine_ls_R_factor_gt           0.0342
_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^)+(0.0488P)^2^+4.5649P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0872
_refine_ls_wR_factor_ref         0.0890
_reflns_number_gt                1548
_reflns_number_total             1595
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b416412a.txt
_cod_data_source_block           compound_2
_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               7008069