Cation-Bonding and Protonation of the Fe4-Square Cluster
Hou, Yu; Rodriguez, Mark A.; Nyman, May; Crystal Growth & Design 12 (2012) 1422–; doi:10.1021/cg2015397

data_4505544
_publ_section_title
;
 Cation-Bonding and Protonation of the Fe4-Square Cluster
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1422
_journal_paper_doi               10.1021/cg2015397
_journal_volume                  12
_journal_year                    2012
_chemical_formula_sum            'C52 H66 Fe8 Mg2 N8 Na2 O72'
_chemical_formula_weight         2496.53
_chemical_name_common            'sodium magnesium iron(4) di-HPDTA diacetate'
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 98.5510(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            1
_cell_length_a                   11.0430(9)
_cell_length_b                   20.5133(16)
_cell_length_c                   11.2959(9)
_cell_measurement_reflns_used    237
_cell_measurement_temperature    188(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      1.0
_cell_volume                     2530.4(3)
_computing_cell_refinement       'SMART 5.054 (Bruker, 1998)'
_computing_data_reduction        'SAINT 6.02 (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL 5.1  (Bruker, 1998)'
_computing_publication_material  'SHELXTL 5.1  (Bruker, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXTL 5.1  (Bruker, 1998'
_diffrn_ambient_temperature      188(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.920
_diffrn_measured_fraction_theta_max 0.920
_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  0.0217
_diffrn_reflns_av_sigmaI/netI    0.0216
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            21601
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    1.250
_exptl_absorpt_correction_T_max  0.8831
_exptl_absorpt_correction_T_min  0.7891
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Bruker 2000'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.638
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.413
_refine_diff_density_min         -0.823
_refine_diff_density_rms         0.190
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     340
_refine_ls_number_reflns         5950
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0817
_refine_ls_R_factor_gt           0.0737
_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^)+(0.1601P)^2^+8.0027P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2401
_refine_ls_wR_factor_ref         0.2494
_reflns_number_gt                5091
_reflns_number_total             5950
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg2015397_si_004.cif
_cod_data_source_block           11oc051_mgfe4
_cod_original_sg_symbol_H-M      'P 21/m'
_cod_database_code               4505544