Molecular self-assemblies of a pi-conjugated redox-active bipyridinium cation with magnetic dimetallic oxalate-bridged trimeric clusters.
Sun, Yan-Qiong; Zhang, Jie; Yang, Guo-Yu; Dalton transactions (Cambridge, England : 2003)  (2006) 1685–1690; doi:10.1039/b512695a

data_7006664
_publ_section_title
;
 Molecular self-assemblies of a pi-conjugated redox-active bipyridinium
 cation with magnetic dimetallic oxalate-bridged trimeric clusters.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1685
_journal_page_last               1690
_journal_paper_doi               10.1039/b512695a
_journal_year                    2006
_chemical_formula_sum            'C68 H69 Cr2 Mn N12 O38.5'
_chemical_formula_weight         1829.29
_chemical_name_systematic
;
?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 98.544(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.059(3)
_cell_length_b                   20.686(5)
_cell_length_c                   16.154(4)
_cell_measurement_reflns_used    8254
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.01
_cell_volume                     3984.9(17)
_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_detector_area_resol_mean 14.6306
_diffrn_measured_fraction_theta_full 0.901
_diffrn_measured_fraction_theta_max 0.901
_diffrn_measurement_device_type  'Mercury70 (2x2 bin mode)'
_diffrn_measurement_method       dtprofit.ref
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1200
_diffrn_reflns_av_sigmaI/netI    0.2270
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            26486
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.01
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.527
_exptl_absorpt_correction_T_max  0.919
_exptl_absorpt_correction_T_min  0.892
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Indigo
_exptl_crystal_density_diffrn    1.524
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1884
_exptl_crystal_size_max          0.3400
_exptl_crystal_size_mid          0.1800
_exptl_crystal_size_min          0.1600
_refine_diff_density_max         0.776
_refine_diff_density_min         -0.378
_refine_diff_density_rms         0.084
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.33(4)
_refine_ls_extinction_coef       0.0067(8)
_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   0.918
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1043
_refine_ls_number_reflns         12815
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.976
_refine_ls_R_factor_all          0.1642
_refine_ls_R_factor_gt           0.1058
_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^)+(0.0658P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2020
_refine_ls_wR_factor_ref         0.2377
_reflns_number_gt                5483
_reflns_number_total             12815
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b512695a.txt
_cod_data_source_block           s_3
_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        3985.2(17)
_cod_original_sg_symbol_H-M      P2(1)
_cod_original_formula_sum        'C68 H69 Cr2 Mn N12 O38.50'
_cod_database_code               7006664