Amido-based potassium-alkaline earth metallates - synthesis and structures of heterobimetallic complexes of heavy s-block elements.
Glock, Carsten; Görls, Helmar; Westerhausen, Matthias; Dalton transactions (Cambridge, England : 2003) 40 (2011) 8108–8113; doi:10.1039/c1dt10364d

data_7016392
_publ_section_title
;
 Amido-based potassium-alkaline earth metallates - synthesis and
 structures of heterobimetallic complexes of heavy s-block elements.
;
_journal_issue                   32
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8108
_journal_page_last               8113
_journal_paper_doi               10.1039/c1dt10364d
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C48 H80 K2 N8 Sr'
_chemical_formula_sum            'C48 H80 K2 N8 Sr'
_chemical_formula_weight         935.02
_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                 98.348(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.6314(4)
_cell_length_b                   16.5053(7)
_cell_length_c                   17.4528(6)
_cell_measurement_reflns_used    37429
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      27.53
_cell_measurement_theta_min      2.21
_cell_volume                     5310.2(3)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-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  0.1036
_diffrn_reflns_av_sigmaI/netI    0.1181
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            37429
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         2.21
_exptl_absorpt_coefficient_mu    1.210
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.299
_refine_diff_density_min         -0.354
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.942
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     547
_refine_ls_number_reflns         12186
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.942
_refine_ls_R_factor_all          0.1184
_refine_ls_R_factor_gt           0.0493
_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^)+(0.0396P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0829
_refine_ls_wR_factor_ref         0.1006
_reflns_number_gt                7032
_reflns_number_total             12186
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10364d.txt
_cod_data_source_block           FO3868
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7016392