Molecular squares of Ni(II) and Cu(II): ferromagnetic exchange interaction mediated by syn-anti carboxylate-bridging.
Arora, Himanshu; Lloret, Francesc; Mukherjee, Rabindranath; Dalton transactions (Cambridge, England : 2003)  (2009) 9759–9769; doi:10.1039/b905463d

data_7002755
_publ_section_title
;
 Molecular squares of Ni(II) and Cu(II): ferromagnetic exchange
 interaction mediated by syn-anti carboxylate-bridging.
;
_journal_issue                   44
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9759
_journal_page_last               9769
_journal_paper_doi               10.1039/b905463d
_journal_year                    2009
_chemical_formula_moiety         'C56 H68 Cl4 Cu4 N12 O24'
_chemical_formula_sum            'C56 H68 Cl4 Cu4 N12 O24'
_chemical_formula_weight         1689.18
_chemical_name_systematic
;
?
;
_space_group_IT_number           114
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P -4 2n'
_symmetry_space_group_name_H-M   'P -4 21 c'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000
_cell_angle_beta                 90.000
_cell_angle_gamma                90.000
_cell_formula_units_Z            2
_cell_length_a                   20.532(5)
_cell_length_b                   20.532(5)
_cell_length_c                   8.217(5)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      1.98
_cell_volume                     3464(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART APEX'
_computing_data_reduction        'Bruker SAINT PLUS'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WingX publication routine (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97(Altomare, et. al. 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0820
_diffrn_reflns_av_sigmaI/netI    0.0667
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            23088
_diffrn_reflns_theta_full        28.29
_diffrn_reflns_theta_max         28.29
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    1.451
_exptl_absorpt_correction_T_max  0.8685
_exptl_absorpt_correction_T_min  0.7601
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.619
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.741
_refine_diff_density_min         -0.455
_refine_diff_density_rms         0.108
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.995
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         4296
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.0772
_refine_ls_R_factor_gt           0.0473
_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^)+(0.0627P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1044
_refine_ls_wR_factor_ref         0.1196
_reflns_number_gt                3205
_reflns_number_total             4296
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b905463d.txt
_cod_data_source_block           3sepbm
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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 'Empirical' changed to
'empirical' 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_sg_symbol_H-M      P-421c
_cod_database_code               7002755