Self-assembled polymetallic square grids ([2 ? 2] M4, [3 ? 3] M9) and trigonal bipyramidal clusters (M5)?structural and magnetic properties
Dawe, Louise N.; Abedin, Tareque S. M.; Kelly, Timothy L.; Thompson, Laurence K.; Miller, David O.; Zhao, Liang; Wilson, Claire; Leech, Michael A.; Howard, Judith A. K.; Journal of Materials Chemistry 16 (2006) 2645–; doi:10.1039/b602595a

data_7203325
_publ_section_title
;
 Self-assembled polymetallic square grids ([2 ? 2] M4, [3 ? 3] M9) and
 trigonal bipyramidal clusters (M5)?structural and magnetic properties
;
_journal_issue                   26
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              2645
_journal_paper_doi               10.1039/b602595a
_journal_volume                  16
_journal_year                    2006
_chemical_formula_sum            'C52 H48 Cl4 Cu4 N20 O28.13'
_chemical_formula_weight         1799.10
_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                 96.9830(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.9608(10)
_cell_length_b                   17.0907(9)
_cell_length_c                   21.2188(11)
_cell_measurement_reflns_used    989
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.52
_cell_measurement_theta_min      21.25
_cell_volume                     7185.0(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_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 SMART-CCD'
_diffrn_measurement_method       \w-scan
_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  0.0309
_diffrn_reflns_av_sigmaI/netI    0.0163
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            88214
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         1.32
_exptl_absorpt_coefficient_mu    1.412
_exptl_absorpt_correction_T_max  0.743
_exptl_absorpt_correction_T_min  0.639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_density_diffrn    1.663
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3636
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.21
_refine_diff_density_max         1.860
_refine_diff_density_min         -1.113
_refine_diff_density_rms         0.090
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1022
_refine_ls_number_reflns         16521
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0434
_refine_ls_R_factor_gt           0.0380
_refine_ls_shift/su_max          0.038
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0516P)^2^+14.1854P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1024
_refine_ls_wR_factor_ref         0.1081
_reflns_number_gt                14833
_reflns_number_total             16521
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b602595a.txt
_cod_data_source_block           l3m(3)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7203325