Systematic study of the formation of the lanthanoid cubane cluster motif mediated by steric modification of diketonate ligands.
Andrews, Philip C.; Gee, William J.; Junk, Peter C.; Maclellan, Jonathan G.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 12169–12179; doi:10.1039/c1dt10580a

data_7017139
_publ_section_title
;
 Systematic study of the formation of the lanthanoid cubane cluster motif
 mediated by steric modification of diketonate ligands.
;
_journal_issue                   45
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12169
_journal_page_last               12179
_journal_paper_doi               10.1039/c1dt10580a
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety
'C104 H104 Er4 O28, 0.25(C7 H8), 0.375(C7 H8)'
_chemical_formula_sum            'C108.38 H111 Er4 O28'
_chemical_formula_weight         2530.51
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.956(5)
_cell_angle_beta                 76.190(16)
_cell_angle_gamma                86.901(24)
_cell_formula_units_Z            2
_cell_length_a                   15.585(5)
_cell_length_b                   17.398(4)
_cell_length_c                   23.610(5)
_cell_measurement_reflns_used    59802
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      1.29
_cell_volume                     6168(3)
_computing_cell_refinement       'XDS (Kabsch, 1993)'
_computing_data_collection       'Blu-Ice (McPhillips et al, 2002)'
_computing_data_reduction        'XDS (Kabsch, 1993)'
_computing_molecular_graphics    X-SEED
_computing_publication_material  'XCIF V6.12 (BrukerAXS, 2001).'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.930
_diffrn_measured_fraction_theta_max 0.930
_diffrn_measurement_device_type  'ADSC Quantum 210r'
_diffrn_measurement_method       'scans in phi'
_diffrn_radiation_monochromator  silicon
_diffrn_radiation_source         'Australian synchrotron MX1'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.77487
_diffrn_reflns_av_R_equivalents  0.0510
_diffrn_reflns_av_sigmaI/netI    0.0408
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            59802
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.29
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.757
_exptl_absorpt_correction_T_max  0.9730
_exptl_absorpt_correction_T_min  0.9469
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             2515
_exptl_crystal_size_max          0.02
_exptl_crystal_size_mid          0.01
_exptl_crystal_size_min          0.01
_refine_diff_density_max         2.398
_refine_diff_density_min         -2.433
_refine_diff_density_rms         0.239
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     498
_refine_ls_number_reflns         15564
_refine_ls_number_restraints     23
_refine_ls_restrained_S_all      1.116
_refine_ls_R_factor_all          0.1014
_refine_ls_R_factor_gt           0.0860
_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^)+(0.1303P)^2^+136.3708P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2360
_refine_ls_wR_factor_ref         0.2486
_reflns_number_gt                12629
_reflns_number_total             15564
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10580a.txt
_cod_data_source_block           wg3
_cod_database_code               7017139