Bis(trimethylsilyl)amide complexes of s-block metals with bidentate ether and amine ligands.
Schüler, Philipp; Görls, Helmar; Westerhausen, Matthias; Krieck, Sven; Dalton transactions (Cambridge, England : 2003) 48 (2019) 8966–8975; doi:10.1039/c9dt01426h

data_7701548
_publ_section_title
;
 Bis(trimethylsilyl)amide complexes of s-block metals with bidentate ether
 and amine ligands.
;
_journal_issue                   24
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8966
_journal_page_last               8975
_journal_paper_doi               10.1039/c9dt01426h
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C20 H56 K2 N2 O4 Si4'
_chemical_formula_sum            'C20 H56 K2 N2 O4 Si4'
_chemical_formula_weight         579.23
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_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
_audit_update_record
;
2019-04-01 deposited with the CCDC.	2019-05-10 downloaded from the CCDC.
;
_cell_angle_alpha                106.864(2)
_cell_angle_beta                 102.532(1)
_cell_angle_gamma                109.884(2)
_cell_formula_units_Z            1
_cell_length_a                   8.9461(3)
_cell_length_b                   10.7526(4)
_cell_length_c                   10.9069(4)
_cell_measurement_reflns_used    10528
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.29
_cell_volume                     884.21(6)
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_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  0.0219
_diffrn_reflns_av_sigmaI/netI    0.0274
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            10528
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.29
_exptl_absorpt_coefficient_mu    0.427
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6802
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker-AXS, 2002'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.088
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             316
_exptl_crystal_size_max          0.108
_exptl_crystal_size_mid          0.102
_exptl_crystal_size_min          0.098
_refine_diff_density_max         0.644
_refine_diff_density_min         -0.404
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     153
_refine_ls_number_reflns         4002
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0361
_refine_ls_R_factor_gt           0.0328
_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^)+(0.0262P)^2^+0.6666P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0814
_refine_ls_wR_factor_ref         0.0839
_reflns_number_gt                3717
_reflns_number_total             4002
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9dt01426h2.cif
_cod_data_source_block           FO6409
_cod_original_cell_volume        884.21(5)
_cod_database_code               7701548