Slow Magnetic Relaxation in Co(III)-Co(II) Mixed-Valence Dinuclear Complexes with a CoIIO5X (X = Cl, Br, NO3) Distorted-Octahedral Coordination Sphere
Vadapalli Chandrasekhar; Atanu Dey; Antonio J. Mota; Enrique Colacio; Inorganic Chemistry 52 (2013) 4554–4561; doi:10.1021/ic400073y

data_4334504
_publ_contact_author_address
;Head, Department of Chemistry
Indian Institute of Technology Kanpur
Kanpur 208016
Uttarpradesh
India
;
_publ_contact_author_email       vc@iitk.ac.in
_publ_contact_author_fax         '+91-512-259 7436'
_publ_contact_author_name        'Prof. V. Chandrasekhar'
_publ_contact_author_phone       '+91-512-259 7259'
_publ_section_title
;
 Slow Magnetic Relaxation in Co(III)-Co(II) Mixed-Valence Dinuclear
 Complexes with a CoIIO5X (X = Cl, Br, NO3) Distorted-Octahedral
 Coordination Sphere
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4554
_journal_page_last               4561
_journal_paper_doi               10.1021/ic400073y
_journal_volume                  52
_journal_year                    2013
_chemical_formula_moiety         'C24 H30 Br Co2 N2 O11, 3(H2 O), O '
_chemical_formula_sum            'C24 H36 Br Co2 N2 O15'
_chemical_formula_weight         790.32
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 106.395(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.670(2)
_cell_length_b                   13.369(2)
_cell_length_c                   19.766(3)
_cell_measurement_reflns_used    3559
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.67
_cell_measurement_theta_min      2.37
_cell_volume                     2958.4(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0310
_diffrn_reflns_av_sigmaI/netI    0.0593
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            7439
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         4.30
_exptl_absorpt_coefficient_mu    2.548
_exptl_absorpt_correction_T_max  0.7847
_exptl_absorpt_correction_T_min  0.7847
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.774
_exptl_crystal_description       block
_exptl_crystal_F_000             1612
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.760
_refine_diff_density_min         -0.515
_refine_diff_density_rms         0.081
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.009(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     430
_refine_ls_number_reflns         4080
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0368
_refine_ls_R_factor_gt           0.0337
_refine_ls_shift/su_max          0.075
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0310P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0740
_refine_ls_wR_factor_ref         0.0757
_reflns_number_gt                3794
_reflns_number_total             4080
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic400073y_si_002_2.cif
_cod_data_source_block           Br
_cod_original_cell_volume        2958.4(9)
_cod_database_code               4334504