Metal-Complexes As Ligands to Generate Asymmetric Homo- and Heterodinuclear MAIIIMBII Species: a Magneto-Structural and Spectroscopic Comparison of Imidazole-N versus Pyridine-N
Biplab Biswas; Sunita Salunke-Gawali; Thomas Weyhermüller; Vinzenz Bachler; Eckhard Bill; Phalguni Chaudhuri; Inorganic Chemistry 49 (2010) 626–641; doi:10.1021/ic9018426

data_4314555
_publ_section_title
;
 Metal-Complexes As Ligands to Generate Asymmetric Homo- and
 Heterodinuclear MAIIIMBII Species: a Magneto-Structural and Spectroscopic
 Comparison of Imidazole-N versus Pyridine-N
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              626
_journal_page_last               641
_journal_paper_doi               10.1021/ic9018426
_journal_volume                  49
_journal_year                    2010
_chemical_formula_moiety
'C20 H44 Fe2 N6 O5, C24 H39 Fe Mn N12 O3, 4 (Cl O4), 2 (C H4 O)'
_chemical_formula_sum            'C46 H91 Cl4 Fe3 Mn N18 O26'
_chemical_formula_weight         1676.66
_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                 95.943(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.5869(9)
_cell_length_b                   11.5184(7)
_cell_length_c                   36.430(2)
_cell_measurement_temperature    100(2)
_cell_volume                     6922.7(7)
_computing_cell_refinement       'Bruker AXS Collect Software'
_computing_data_collection       'Bruker AXS Collect Software'
_computing_data_reduction        'Bruker AXS Collect Software'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker-Nonius Kappa-CCD'
_diffrn_measurement_method
'1934 images at 0.5 deg. stepwise rotation in omega and phi, 25 sec./frame'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode, 50 kV, 70 mA'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0866
_diffrn_reflns_av_sigmaI/netI    0.0482
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -44
_diffrn_reflns_number            118418
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.02
_exptl_absorpt_coefficient_mu    1.039
_exptl_absorpt_correction_T_max  0.885
_exptl_absorpt_correction_T_min  0.678
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2006/1, Bruker AXS (2006)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.609
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'transparent parallelepiped'
_exptl_crystal_F_000             3488
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.879
_refine_diff_density_min         -0.660
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     939
_refine_ls_number_reflns         13579
_refine_ls_number_restraints     101
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0768
_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^)+(0.0434P)^2^+18.4072P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1122
_refine_ls_wR_factor_ref         0.1282
_reflns_number_gt                10074
_reflns_number_total             13579
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic9018426_si_001_07.cif
_cod_data_source_block           05b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-Scan' changed to
'multi-scan' according to the built-in table from CIF Core dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               4314555