Syntheses, crystal structures, and magnetic properties of a series of cyanide-bridged trinuclear chromate(III)-nickel(II)-chromate(III) complexes based on dicyanidechromate(III) building blocks
Hui Chen; Bao-Xi Miao; Li-Fang Zhang; Guo-Ling Li; Zhong-Hai Ni; Inorganica Chimica Acta 404 (2013) 34–39; doi:

data_1517701
_publ_section_title
;
 Syntheses, crystal structures, and magnetic properties of a series of
 cyanide-bridged trinuclear chromate(III)-nickel(II)-chromate(III)
 complexes based on dicyanidechromate(III) building blocks
;
_journal_name_full
;
Inorganica Chimica Acta
;
_journal_page_first              34
_journal_page_last               39
_journal_volume                  404
_journal_year                    2013
_chemical_formula_moiety         'C54 H56 Cr2 N16 Ni O4'
_chemical_formula_sum            'C54 H56 Cr2 N16 Ni O4'
_chemical_formula_weight         1155.86
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.37(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.0535(18)
_cell_length_b                   14.211(3)
_cell_length_c                   20.331(4)
_cell_measurement_reflns_used    2530
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      26.55
_cell_measurement_theta_min      3.01
_cell_volume                     2615.7(9)
_computing_cell_refinement       'SAINT-Plus (Bruker, 2001)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        SAINT-Plus
_computing_molecular_graphics    'XP (Sheldrick, 1998)'
_computing_publication_material  XP
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX II CCD 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  0.0836
_diffrn_reflns_av_sigmaI/netI    0.0457
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            29269
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         3.02
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.828
_exptl_absorpt_correction_T_max  0.913
_exptl_absorpt_correction_T_min  0.881
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.467
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.535
_refine_diff_density_min         -0.521
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.948
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     351
_refine_ls_number_reflns         5679
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.948
_refine_ls_R_factor_all          0.0488
_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^)+(0.1079P)^2^+1.2891P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1362
_refine_ls_wR_factor_ref         0.1406
_reflns_number_gt                5303
_reflns_number_total             5679
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ICA-2013-404-34-39-4.cif
_cod_data_source_block           dmbpb
_cod_original_cell_volume        2615.8(9)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1517701