Divalent zinc and cadmium coordination polymers of a new flexible tetracarboxylate ligand: syntheses, crystal structures and properties.
Zang, Shuang-Quan; Liang, Ran; Fan, Ya-Juan; Hou, Hong-Wei; Mak, Thomas C. W.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 8022–8032; doi:10.1039/c0dt00374c

data_7026376
_publ_section_title
;
 Divalent zinc and cadmium coordination polymers of a new flexible
 tetracarboxylate ligand: syntheses, crystal structures and properties.
;
_journal_issue                   34
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8022
_journal_page_last               8032
_journal_paper_doi               10.1039/c0dt00374c
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C27 H16 N2 O10 Zn2'
_chemical_formula_sum            'C27 H16 N2 O10 Zn2'
_chemical_formula_weight         659.16
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 97.0080(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.0753(7)
_cell_length_b                   8.7427(6)
_cell_length_c                   24.9801(16)
_cell_measurement_reflns_used    2250
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.650
_cell_measurement_theta_min      2.1505
_cell_volume                     2400.7(3)
_computing_cell_refinement       'APEX 2'
_computing_data_collection       'APEX 2(Bruker, 2009)'
_computing_data_reduction        'SAINT(Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL(Bruker, 2009)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Smart APEX II 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  0.0913
_diffrn_reflns_av_sigmaI/netI    0.1102
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            11731
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.85
_exptl_absorpt_coefficient_mu    2.067
_exptl_absorpt_correction_T_max  0.7468
_exptl_absorpt_correction_T_min  0.7073
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS(Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.824
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.825
_refine_diff_density_min         -0.674
_refine_diff_density_rms         0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.896
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         4225
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.896
_refine_ls_R_factor_all          0.0790
_refine_ls_R_factor_gt           0.0457
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0246P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0872
_refine_ls_wR_factor_ref         0.0961
_reflns_number_gt                2678
_reflns_number_total             4225
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00374c.txt
_cod_data_source_block           compound4
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7026376