Zinc(ii) coordination polymers, metallohexacycles and metallocapsules—do we understand self-assembly in metallosupramolecular chemistry: algorithms or serendipity?
Constable, Edwin C.; Zhang, Guoqi; Housecroft, Catherine E.; Zampese, Jennifer A.; CrystEngComm 13 (2011) 6864–; doi:10.1039/c1ce05884c

data_7206754
_publ_section_title
;
 Zinc(ii) coordination polymers, metallohexacycles and
 metallocapsules---do we understand self-assembly in metallosupramolecular
 chemistry: algorithms or serendipity?
;
_journal_issue                   22
_journal_name_full               CrystEngComm
_journal_page_first              6864
_journal_paper_doi               10.1039/c1ce05884c
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C20 H13 Cl3 N4 Zn'
_chemical_formula_sum            'C20 H13 Cl3 N4 Zn'
_chemical_formula_weight         481.08
_chemical_name_systematic
;
?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   17.353(3)
_cell_length_b                   10.3148(16)
_cell_length_c                   20.974(4)
_cell_measurement_reflns_used    1999
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      67.27
_cell_measurement_theta_min      4.95
_cell_volume                     3754.2(11)
_computing_cell_refinement       'Stoe IPDS'
_computing_data_collection       'Stoe IPDS'
_computing_data_reduction        'Stoe IPDS'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Stoe IPDS'
_diffrn_measurement_method       '\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  0.0601
_diffrn_reflns_av_sigmaI/netI    0.0174
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            77342
_diffrn_reflns_theta_full        29.25
_diffrn_reflns_theta_max         29.25
_diffrn_reflns_theta_min         2.27
_exptl_absorpt_coefficient_mu    1.750
_exptl_absorpt_correction_T_max  0.7211
_exptl_absorpt_correction_T_min  0.6688
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Blessing 1951)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.702
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1936
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.906
_refine_diff_density_min         -0.573
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.134
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         5068
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.134
_refine_ls_R_factor_all          0.0351
_refine_ls_R_factor_gt           0.0341
_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^)+(0.0286P)^2^+4.7705P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0823
_refine_ls_wR_factor_ref         0.0828
_reflns_number_gt                4931
_reflns_number_total             5068
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ce05884c.txt
_cod_data_source_block           gq270
_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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        3754.1(11)
_cod_original_sg_symbol_Hall     -P2ac2ab
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7206754