Spontaneous resolution of a coordination polymer containing stereogenic five-coordinate Zn(ii) centers and achiral ligands with axially chiral conformation
Zheng, Sheng-Run; Cai, Song-Liang; Tan, Jing-Bo; Fan, Jun; Zhang, Wei-Guang; CrystEngComm 14 (2012) 6241–; doi:10.1039/c2ce25428j

data_7208470
_publ_section_title
;
 Spontaneous resolution of a coordination polymer containing stereogenic
 five-coordinate Zn(ii) centers and achiral ligands with axially chiral
 conformation
;
_journal_issue                   19
_journal_name_full               CrystEngComm
_journal_page_first              6241
_journal_paper_doi               10.1039/c2ce25428j
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C10 H5 N3 O4 Zn'
_chemical_formula_weight         296.54
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                   9.652(5)
_cell_length_b                   10.704(5)
_cell_length_c                   11.159(6)
_cell_measurement_reflns_used    2536
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.30
_cell_measurement_theta_min      2.64
_cell_volume                     1152.9(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0397
_diffrn_reflns_av_sigmaI/netI    0.0504
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6136
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.64
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    2.140
_exptl_absorpt_correction_T_max  0.6742
_exptl_absorpt_correction_T_min  0.5662
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            clorless
_exptl_crystal_density_diffrn    1.708
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             592
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.588
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         2241
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0501
_refine_ls_R_factor_gt           0.0361
_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^)+(0.0476P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0833
_refine_ls_wR_factor_ref         0.0908
_reflns_number_gt                1854
_reflns_number_total             2241
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25428j.txt
_cod_data_source_block           Zn1a
_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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P2(1)2(1)2(1) '
_cod_database_code               7208470