Synthesis, Crystal Structures, and Magnetism of Cobalt Coordination Polymers Based on Dicyanamide and Pyrazine-dioxide Derivatives
Hao-Ling Sun; Zhe-Ming Wang; Song Gao; Inorganic Chemistry 44 (2005) 2169–2176; doi:10.1021/ic048342j

data_4308959
_publ_section_title
;
Synthesis, Crystal Structures, and Magnetism of Cobalt Coordination
Polymers Based on Dicyanamide and Pyrazine-dioxide Derivatives
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2169
_journal_page_last               2176
_journal_paper_doi               10.1021/ic048342j
_journal_volume                  44
_journal_year                    2005
_chemical_formula_sum            'C26 H28 Co3 N22 O8'
_chemical_formula_weight         953.49
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 93.6520(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   29.4769(10)
_cell_length_b                   7.3735(2)
_cell_length_c                   17.4631(7)
_cell_measurement_reflns_used    24999
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      3.395
_cell_volume                     3787.9(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'KappaCCD (Nonius B. V., 1998)'
_computing_data_reduction
'HKL Denzo (Otwinowski & Minor, 1997) & maXus (Mackay et al., 1998)'
_computing_molecular_graphics    'Bruker SHELXTL V5.1 (Sheldrick, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.76
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'NONIUS KappaCCD'
_diffrn_measurement_method       CCD
_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  0.0878
_diffrn_reflns_av_sigmaI/netI    0.0896
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            26327
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.46
_exptl_absorpt_coefficient_mu    1.377
_exptl_absorpt_correction_T_max  0.937
_exptl_absorpt_correction_T_min  0.869
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(Blessing, 1995, 1997)'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.672
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1932
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.410
_refine_diff_density_min         -0.439
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         4329
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.1085
_refine_ls_R_factor_gt           0.0532
_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^)+(0.0510P)^2^+5.5015P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1061
_refine_ls_wR_factor_ref         0.1221
_reflns_number_gt                2729
_reflns_number_total             4329
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic048342jsi20050112_101457_2.cif
_cod_data_source_block           compound2
_cod_database_code               4308959