Synthesis, crystal structure, EPR and magnetic properties of a cyano-bridged Cuii?Niii heterobimetallic complex: an unusual structure with long-range ferromagnetic exchange through hydrogen bonding
Ali, Mahammad; Ray, Ambarish; Sheldrick, William S.; Mayer-Figge, H.; Gao, Song; Sahmes, Alexander I.; New Journal of Chemistry 28 (2004) 412–; doi:10.1039/b306866h

data_7050144
_publ_section_title
;
 Synthesis, crystal structure, EPR and magnetic properties of a
 cyano-bridged Cuii?Niii heterobimetallic complex: an unusual structure
 with long-range ferromagnetic exchange through hydrogen bonding
;
_journal_issue                   3
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              412
_journal_paper_doi               10.1039/b306866h
_journal_volume                  28
_journal_year                    2004
_chemical_formula_sum            'C20 H36 Cu N8 Ni'
_chemical_formula_weight         510.82
_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                 115.62(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.140(9)
_cell_length_b                   12.002(4)
_cell_length_c                   14.286(5)
_cell_measurement_reflns_used    15
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      10
_cell_volume                     2341(2)
_computing_cell_refinement       'Siemens R3m/V'
_computing_data_collection       'Siemens R3m/V'
_computing_data_reduction        XDISK
_computing_molecular_graphics    'Siemens SHELXTL-PLUS (VMS)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device       'Siemens P4 4-circle-diffractometer'
_diffrn_measurement_method       'Profile fitted'
_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  0.0550
_diffrn_reflns_av_sigmaI/netI    0.0502
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            3214
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.26
_diffrn_standards_decay_%        20
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.736
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.449
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1076
_exptl_crystal_size_max          0.58
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.620
_refine_diff_density_min         -0.987
_refine_diff_density_rms         0.123
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     141
_refine_ls_number_reflns         2570
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0906
_refine_ls_R_factor_gt           0.0604
_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^)+(0.1124P)^2^+2.5482P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1568
_refine_ls_wR_factor_ref         0.1822
_reflns_number_gt                1790
_reflns_number_total             2570
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b306866h.txt
_cod_data_source_block           s1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_cell_volume        2340.8(18)
_cod_original_sg_symbol_H-M      C2/c
_cod_original_formula_sum        'C20 H36 N8 Ni Cu'
_cod_database_code               7050144