Synthesis, crystal structure and magnetic behavior of three polynuclear complexes, [Co(pyo)2(dca)2]n, [Co3(ac)4(bpe)3(dca)2]n and [{Co(male)(H2O)2}(H2O)]n (pyo, pyridine-N-oxide; dca, dicyanamide; ac, acetate; bpe, 1,2-bis-(4-pyridyl)ethane and male, maleate)
Nirmalendu Ray Chaudhuri; Debajyoti Ghoshal; Tian-Huey Lu; Tapas Kumar Maji; Golam Mostafa; Joan Ribas; E.Zangrando; New J.Chem.(Nouv.J.Chim.)  (2004) –; doi:

data_7050323
_publ_section_title
;
Synthesis, crystal structure and magnetic behavior
of three polynuclear complexes, [Co(pyo)2(dca)2]n,
[Co3(ac)4(bpe)3(dca)2]n and [{Co(male)(H2O)2}(H2O)]n (pyo,
pyridine-N-oxide; dca, dicyanamide; ac, acetate; bpe,
1,2-bis-(4-pyridyl)ethane and male, maleate)
;
_journal_name_full               'New J.Chem.(Nouv.J.Chim.)'
_journal_year                    2004
_chemical_formula_moiety         '2(C4 N6 1-) 2(C5 H5 N1 O1) (Co 2+)'
_chemical_formula_sum            'C14 H10 Co N8 O2'
_chemical_formula_weight         381.23
_chemical_name_common
bis(mu-dicyanoamide)-bis(pyridine-N-oxide)-cobalt(ii)
_chemical_name_systematic
;
bis(mu-dicyanoamide)-bis(pyridine-N-oxide)-cobalt(II)
;
_space_group_IT_number           12
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 109.10(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   17.329(4)
_cell_length_b                   7.318(3)
_cell_length_c                   6.679(2)
_cell_measurement_reflns_used    ?
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      ?
_cell_measurement_theta_min      ?
_cell_volume                     800.4(4)
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean ?
_diffrn_measurement_device_type  'image plate dip1030'
_diffrn_measurement_method       'laser scanner'
_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  0.0307
_diffrn_reflns_av_sigmaI/netI    0.0427
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            2213
_diffrn_reflns_theta_max         30.49
_diffrn_reflns_theta_min         2.49
_diffrn_standards_decay_%        ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    1.099
_exptl_absorpt_correction_T_max  0.8837
_exptl_absorpt_correction_T_min  0.6654
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details   ?
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.582
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             386
_exptl_crystal_size_max          0.65
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.30
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     71
_refine_ls_number_reflns         1199
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0363
_refine_ls_R_factor_gt           0.0357
_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^)+(0.0430P)^2^+0.4727P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0965
_refine_ls_wR_factor_ref         0.0971
_reflns_number_gt                1171
_reflns_number_total             1199
_reflns_threshold_expression     >2sigma(I)
_cod_original_sg_symbol_H-M      'C 2/m'
_cod_database_code               7050323