Dinuclear Metallacycles with Single M-X-M Bridges (X = Cl(-), Br(-); M = Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II)): Strong Antiferromagnetic Superexchange Interactions.
Reger, Daniel L.; Pascui, Andrea E.; Foley, Elizabeth A.; Smith, Mark D.; Jezierska, Julia; Wojciechowska, Agnieszka; Stoian, Sebastian A.; Ozarowski, Andrew; Inorganic chemistry  (2017) –; doi:10.1021/acs.inorgchem.6b02933

data_4345958
_publ_section_title
;
 Dinuclear Metallacycles with Single M-X-M Bridges (X = Cl(-), Br(-); M =
 Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II)): Strong Antiferromagnetic
 Superexchange Interactions.
;
_journal_name_full               'Inorganic chemistry'
_journal_paper_doi               10.1021/acs.inorgchem.6b02933
_journal_year                    2017
_chemical_formula_moiety         'C28 H34 Br4 Co2 N8'
_chemical_formula_sum            'C28 H34 Br4 Co2 N8'
_chemical_formula_weight         920.13
_chemical_name_systematic
; 
 ? 
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.772(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.7243(6)
_cell_length_b                   31.462(2)
_cell_length_c                   12.4239(9)
_cell_measurement_reflns_used    1917
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      20.490
_cell_measurement_theta_min      2.438
_cell_volume                     3386.4(4)
_computing_cell_refinement       'SAINT-Plus Version 6.45 (Bruker, 2001)'
_computing_data_collection       'SMART Version 5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT-Plus Version 6.45 (Bruker, 2001)'
_computing_molecular_graphics    various
_computing_publication_material  'SHELXTL Version 6.14 (Bruker, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       'omega 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  0.1304
_diffrn_reflns_av_sigmaI/netI    0.0954
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            30933
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.29
_exptl_absorpt_coefficient_mu    5.731
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6424
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS Version 2.05 (Bruker, 2001)'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.805
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1808
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.856
_refine_diff_density_min         -0.615
_refine_diff_density_rms         0.151
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.972
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     387
_refine_ls_number_reflns         5977
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.0890
_refine_ls_R_factor_gt           0.0503
_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^)+(0.0374P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0923
_refine_ls_wR_factor_ref         0.1073
_reflns_number_gt                4040
_reflns_number_total             5977
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic6b02933_si_001.cif
_cod_data_source_block           15_pa1143s
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        3386.3(4)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4345958