Synthesis, crystal structure, and magnetic studies of one-dimensional cyano-bridged Ln3±Cr3+ complexes with bpy as a blocking ligand.
Estrader, Marta; Ribas, Joan; Tangoulis, Vassilis; Solans, Xavier; Font-Bardía, Merce; Maestro, Miguel; Diaz, Carmen; Inorganic chemistry 45 (2006) 8239–8250; doi:10.1021/ic060942q

data_4350474
_publ_section_title
;
 Synthesis, crystal structure, and magnetic studies of one-dimensional
 cyano-bridged Ln3+-Cr3+ complexes with bpy as a blocking ligand.
;
_journal_issue                   20
_journal_name_full               'Inorganic chemistry'
_journal_page_first              8239
_journal_page_last               8250
_journal_paper_doi               10.1021/ic060942q
_journal_volume                  45
_journal_year                    2006
_chemical_formula_moiety
'C16 H16 Cr Yb N8 O4, 3/2(C10 H8 N2), 7/2(H2 O)'
_chemical_formula_sum            'C31 H35 Cr N11 O7.5 Yb'
_chemical_formula_weight         906.72
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                83.596(3)
_cell_angle_beta                 84.282(3)
_cell_angle_gamma                64.463(2)
_cell_formula_units_Z            2
_cell_length_a                   9.8332(15)
_cell_length_b                   10.7618(16)
_cell_length_c                   19.901(3)
_cell_measurement_temperature    298(2)
_cell_volume                     1885.3(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.914
_diffrn_measured_fraction_theta_max 0.914
_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  0.0239
_diffrn_reflns_av_sigmaI/netI    0.0463
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            12134
_diffrn_reflns_theta_full        28.25
_diffrn_reflns_theta_max         28.25
_diffrn_reflns_theta_min         2.06
_exptl_absorpt_coefficient_mu    2.815
_exptl_absorpt_correction_T_max  0.78
_exptl_absorpt_correction_T_min  0.53
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   Sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.617
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             904
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.197
_refine_diff_density_min         -1.743
_refine_diff_density_rms         0.100
_refine_ls_extinction_coef       0.0014(3)
_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   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     489
_refine_ls_number_reflns         8528
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0350
_refine_ls_R_factor_gt           0.0295
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0390P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0711
_refine_ls_wR_factor_ref         0.0733
_reflns_number_gt                7650
_reflns_number_total             8528
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic060942qsi20060630_104750.cif
_cod_data_source_block           complex_12
_cod_original_formula_sum        'C31 H35 N11 O7.5 Cr Yb'
_cod_database_code               4350474