Europium bis(dimethylsilyl)amides including mixed-valent Eu3[N(SiHMe2)2]6[μ-N(SiHMe2)2]2.
Bienfait, André M; Schädle, Christoph; Maichle-Mössmer, Cäcilia; Törnroos, Karl W; Anwander, Reiner; Dalton transactions (Cambridge, England : 2003) 43 (2014) 17324–17332; doi:10.1039/c4dt02411g

data_7032542
_publ_section_title
;
 Europium bis(dimethylsilyl)amides including mixed-valent
 Eu3[N(SiHMe2)2]6[\m-N(SiHMe2)2]2.
;
_journal_issue                   46
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              17324
_journal_page_last               17332
_journal_paper_doi               10.1039/c4dt02411g
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C20 H58 Eu N3 O2 Si6'
_chemical_formula_sum            'C20 H58 Eu N3 O2 Si6'
_chemical_formula_weight         693.19
_chemical_properties_physical    Air-sensitive
_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                 90.82(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.0596(3)
_cell_length_b                   16.3732(4)
_cell_length_c                   16.6147(4)
_cell_measurement_reflns_used    66356
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      32.10
_cell_measurement_theta_min      1.75
_cell_volume                     3552.31(15)
_computing_cell_refinement
;
Bruker (2008). SAINT, version 7.56A, Bruker AXS Inc., Madison, 
Wisconsin, USA.
;
_computing_data_collection
;
Bruker (2008). APEX2, version 2008.5-0, Bruker AXS Inc., Madison, 
Wisconsin, USA.
;
_computing_data_reduction
;
Bruker (2008). SAINT, version 7.56A, Bruker AXS Inc., Madison, 
Wisconsin, USA.
;
_computing_molecular_graphics
;
Brandenburg, K. (2009). DIAMOND. Version 3.2c. Crystal Impact GbR, Bonn, 
Germany.
;
_computing_publication_material
;
Bruker AXS (2008). SHELXTL. Version 2008/1. Bruker AXS Inc., Madison, 
Wisconsin, USA.
;
_computing_structure_refinement
;
Sheldrick, G. M. (2008). Acta Crystallographica, A64, 112-122.
;
_computing_structure_solution
;     
Sheldrick, G. M. (2008). Acta Crystallographica, A64, 112-122.
;
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker TXS APEX-II CCD'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0150
_diffrn_reflns_av_sigmaI/netI    0.0098
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            66356
_diffrn_reflns_theta_full        32.10
_diffrn_reflns_theta_max         32.10
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    1.987
_exptl_absorpt_correction_T_max  0.6260
_exptl_absorpt_correction_T_min  0.3368
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
SADABS version 2008/1, G.M Sheldrick, University of 
G\"ttingen, Germany, 2008.
;
_exptl_crystal_colour            'dark yellow'
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1448
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: '
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.53
_exptl_crystal_size_min          0.26
_refine_diff_density_max         1.226
_refine_diff_density_min         -0.534
_refine_diff_density_rms         0.053
_refine_ls_extinction_coef       0.00074(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.100
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         12431
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.100
_refine_ls_R_factor_all          0.0152
_refine_ls_R_factor_gt           0.0144
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0155P)^2^+1.5061P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0380
_refine_ls_wR_factor_ref         0.0384
_reflns_number_gt                12004
_reflns_number_total             12431
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c4dt02411g1.cif
_cod_data_source_block           Compound1
_cod_depositor_comments
'Adding full bibliography for 7032542--7032546.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7032542