Control of N- or C-Bridging Mode in Dimeric Butylmagnesium Silylamides
Colquhoun, Victoria P.; Abele, Bors C.; Strohmann, Carsten; Organometallics 30 (2011) 5408–; doi:10.1021/om200587n

data_4065149
_publ_section_title
;
 Control of N- or C-Bridging Mode in Dimeric Butylmagnesium Silylamides
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              5408
_journal_paper_doi               10.1021/om200587n
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C32 H72 Mg2 N4 Si2'
_chemical_formula_weight         617.74
_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_date             2009-11-05T11:22:51-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                97.28(4)
_cell_angle_beta                 102.20(4)
_cell_angle_gamma                92.947(4)
_cell_formula_units_Z            1
_cell_length_a                   9.121(2)
_cell_length_b                   10.235(2)
_cell_length_c                   10.943(2)
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26
_cell_measurement_theta_min      1.92
_cell_volume                     987.2(4)
_computing_cell_refinement       'SAINT-Plus (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT-Plus (Bruker, 1999)'
_computing_molecular_graphics    'Ortep-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker SMART APEX CCD'
_diffrn_measurement_method       \w-scans
_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  0.0318
_diffrn_reflns_av_unetI/netI     0.0418
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8729
_diffrn_reflns_theta_full        26
_diffrn_reflns_theta_max         26
_diffrn_reflns_theta_min         1.92
_exptl_absorpt_coefficient_mu    0.146
_exptl_absorpt_correction_T_max  0.9575
_exptl_absorpt_correction_T_min  0.9439
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 1999)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.039
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             344
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.194
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.02
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     195
_refine_ls_number_reflns         3823
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.02
_refine_ls_R_factor_all          0.0656
_refine_ls_R_factor_gt           0.0507
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0751P)^2^+0.2600P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1302
_refine_ls_wR_factor_ref         0.1436
_reflns_number_gt                2962
_reflns_number_total             3823
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200587n_si_006.cif
_cod_data_source_block           vc260208
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4065149