Structures and magnetic properties of Mn(III)₄Ln(III)₄ aggregates with a "square-in-square" topology.
Mereacre, Valeriu; Akhtar, Muhammad Nadeem; Lan, Yanhua; Ako, Ayuk M.; Clérac, Rodolphe; Anson, Christopher E.; Powell, Annie K.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 4918–4927; doi:10.1039/b926899e

data_7025320
_publ_section_title
;
 Structures and magnetic properties of Mn(III)&#x2084;Ln(III)&#x2084;
 aggregates with a &quot;square-in-square&quot; topology.
;
_journal_issue                   20
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4918
_journal_page_last               4927
_journal_paper_doi               10.1039/b926899e
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C72 H144 Gd4 Mn4 N8 O40, 4(C2 H3 N)'
_chemical_formula_sum            'C80 H156 Gd4 Mn4 N12 O40'
_chemical_formula_weight         2774.93
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 111.678(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.4510(12)
_cell_length_b                   35.238(3)
_cell_length_c                   21.3877(16)
_cell_measurement_reflns_used    14011
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.17
_cell_measurement_theta_min      2.19
_cell_volume                     11521.6(16)
_computing_cell_refinement       'SMART-NT 5.6 (Bruker AXS Inc., 2005)'
_computing_data_collection       'SMART-NT 5.6 (Bruker AXS Inc., 2005)'
_computing_data_reduction        'SAINT+ 6.45 (Bruker AXS Inc., 2003)'
_computing_molecular_graphics    'Diamond 2.1 (Crystal Impact, 1998)'
_computing_publication_material  'SHELXTL 6.14 (BrukerAXS Inc., 2003)'
_computing_structure_refinement  'SHELXTL 6.14 (BrukerAXS Inc., 2003)'
_computing_structure_solution    'SHELXTL 6.14 (BrukerAXS Inc., 2003)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.917
_diffrn_measurement_device_type  'Bruker SMART Apex'
_diffrn_measurement_method       'CCD area detector'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0385
_diffrn_reflns_av_sigmaI/netI    0.0441
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       45
_diffrn_reflns_limit_k_min       -45
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            78804
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.16
_diffrn_reflns_theta_min         1.35
_exptl_absorpt_coefficient_mu    2.772
_exptl_absorpt_correction_T_max  0.854
_exptl_absorpt_correction_T_min  0.642
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.10 (Bruker AXS Inc., 2005)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.600
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             5584
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.06
_platon_squeeze_details
;
A.L.Spek, J.Appl.Cryst. 2003, 36, 7-13
;
_refine_diff_density_max         1.664
_refine_diff_density_min         -1.192
_refine_diff_density_rms         0.159
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.088
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1190
_refine_ls_number_reflns         25922
_refine_ls_number_restraints     167
_refine_ls_restrained_S_all      1.094
_refine_ls_R_factor_all          0.0797
_refine_ls_R_factor_gt           0.0598
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0659P)^2^+51.8345P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1435
_refine_ls_wR_factor_ref         0.1521
_reflns_number_gt                19598
_reflns_number_total             25922
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b926899e.txt
_cod_data_source_block           p224s
_cod_original_cell_volume        11521.4(15)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7025320