Metallomacrocycle or helix: Supramolecular isomerism in bis(pyridylurea) metal complexes
Liang, Jianjun; Wu, Biao; Jia, Chuandong; Yang, Xiao-Juan; CrystEngComm 11 (2009) 975–; doi:10.1039/b820640f

data_7200706
_publ_section_title
;
 Metallomacrocycle or helix: Supramolecular isomerism in
 bis(pyridylurea) metal complexes
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              975
_journal_paper_doi               10.1039/b820640f
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C40 H50 Cl4 N12 O4 Zn2'
_chemical_formula_weight         1035.46
_chemical_name_systematic
;
?
;
_space_group_IT_number           41
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'A 2 -2ab'
_symmetry_space_group_name_H-M   'A b a 2'
_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                   12.965(3)
_cell_length_b                   40.535(8)
_cell_length_c                   8.8052(18)
_cell_measurement_reflns_used    4382
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.02
_cell_measurement_theta_min      2.79
_cell_volume                     4627.5(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART APEX II'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX II area detector'
_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  0.1046
_diffrn_reflns_av_sigmaI/netI    0.1821
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       49
_diffrn_reflns_limit_k_min       -50
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            12546
_diffrn_reflns_theta_full        26.32
_diffrn_reflns_theta_max         26.32
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    1.322
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.799
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.486
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2136
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.590
_refine_diff_density_min         -0.546
_refine_diff_density_rms         0.184
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(3)
_refine_ls_extinction_coef       0.0031(2)
_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   0.739
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     282
_refine_ls_number_reflns         4283
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.739
_refine_ls_R_factor_all          0.1439
_refine_ls_R_factor_gt           0.0525
_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^)+(0.0803P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1111
_refine_ls_wR_factor_ref         0.1485
_reflns_number_gt                1645
_reflns_number_total             4283
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b820640f.txt
_cod_data_source_block           ZnLxylene
_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.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' 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_cell_volume        4627.5(16)
_cod_original_sg_symbol_H-M      Aba2
_cod_database_code               7200706