Syntheses, Crystal Structures, and Magnetic Characterization of Five New Dimeric Manganese(III) Tetradentate Schiff Base Complexes Exhibiting Single-Molecule-Magnet Behavior
Lü, Zhengliang; Yuan, Mei; Pan, Feng; Gao, Song; Zhang, Deqing; Zhu, Daoben; Inorganic Chemistry 45 (2006) 3538–3548; doi:10.1021/ic051648l

data_4331842
_publ_section_title
;
 Syntheses, Crystal Structures, and Magnetic Characterization of Five New
 Dimeric Manganese(III) Tetradentate Schiff Base Complexes Exhibiting
 Single-Molecule-Magnet Behavior
;
_journal_issue                   9
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3538
_journal_page_last               3548
_journal_paper_doi               10.1021/ic051648l
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C46 H26 Br12 Mn2 N4 O8'
_chemical_formula_weight         1831.51
_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                 115.67(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.606(3)
_cell_length_b                   15.713(3)
_cell_length_c                   14.343(3)
_cell_measurement_reflns_used    27049
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      3.395
_cell_volume                     2560.6(11)
_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, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.76
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.1183
_diffrn_reflns_av_sigmaI/netI    0.0652
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            41120
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.41
_exptl_absorpt_coefficient_mu    9.914
_exptl_absorpt_correction_T_max  0.708
_exptl_absorpt_correction_T_min  0.335
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(Blessing, 1995, 1997)'
_exptl_crystal_colour            'deep red'
_exptl_crystal_density_diffrn    2.375
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         3.385
_refine_diff_density_min         -2.054
_refine_diff_density_rms         0.198
_refine_ls_extinction_coef       0.0003(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     321
_refine_ls_number_reflns         4752
_refine_ls_number_restraints     51
_refine_ls_restrained_S_all      1.174
_refine_ls_R_factor_all          0.1178
_refine_ls_R_factor_gt           0.0703
_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^)+(0.1425P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2118
_refine_ls_wR_factor_ref         0.2315
_reflns_number_gt                2941
_reflns_number_total             4752
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic051648lsup1.cif
_cod_data_source_block           4
_cod_original_cell_volume        2560.6(9)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4331842