Syntheses, crystal structures, and properties of complexes constructed with polybenzoate and 2,2′-bibenzimidazole
Xia, Chang-Kun; Lu, Can-Zhong; Yuan, Da-Qiang; Zhang, Quan-Zheng; Wu, Xiao-Yuan; Xiang, Sheng-Chang; Zhang, Jian-Jun; Wu, Ding-Ming; CrystEngComm 8 (2006) 281–; doi:10.1039/b600741d

data_7203280
_publ_section_title
;
 Syntheses, crystal structures, and properties of complexes constructed
 with polybenzoate and 2,2&#x2032;-bibenzimidazole
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              281
_journal_paper_doi               10.1039/b600741d
_journal_volume                  8
_journal_year                    2006
_chemical_formula_sum            'C22 H14 N4 Ni O4'
_chemical_formula_weight         457.08
_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                 97.484(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2779(11)
_cell_length_b                   21.675(3)
_cell_length_c                   11.786(2)
_cell_measurement_reflns_used    2419
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0264
_cell_measurement_theta_min      3.1195
_cell_volume                     1843.4(5)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       CCD_Profile_fitting
_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  0.0934
_diffrn_reflns_av_sigmaI/netI    0.0877
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            11638
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         3.26
_exptl_absorpt_coefficient_mu    1.094
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7438
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            White
_exptl_crystal_density_diffrn    1.647
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.5000
_exptl_crystal_size_mid          0.0800
_exptl_crystal_size_min          0.0300
_refine_diff_density_max         0.402
_refine_diff_density_min         -0.367
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.110
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         3245
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.110
_refine_ls_R_factor_all          0.1059
_refine_ls_R_factor_gt           0.0690
_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^)+(0.0399P)^2^+1.9181P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1188
_refine_ls_wR_factor_ref         0.1319
_reflns_number_gt                2321
_reflns_number_total             3245
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b600741d.txt
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_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        1843.5(5)
_cod_original_sg_symbol_H-M      p2(1)/c
_cod_database_code               7203280