Tris(pyrazolyl)borate Complexes of the Alkaline-Earth Metals: Alkylaluminate Precursors and Schlenk-Type Rearrangements
Michel, Olaf; Dietrich, H. Martin; Litlabø, Rannveig; Törnroos, Karl W.; Maichle-Mössmer, Cäcilia; Anwander, Reiner; Organometallics 31 (2012) 3119–; doi:10.1021/om300032c

data_4078007
_publ_section_title
;
 Tris(pyrazolyl)borate Complexes of the Alkaline-Earth Metals:
 Alkylaluminate Precursors and Schlenk-Type Rearrangements
;
_journal_issue                   8
_journal_name_full               Organometallics
_journal_page_first              3119
_journal_paper_doi               10.1021/om300032c
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C25 H43 B Mg N6'
_chemical_formula_sum            'C25 H43 B Mg N6'
_chemical_formula_weight         462.77
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           220
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  'I -4bd 2c 3'
_symmetry_space_group_name_H-M   'I -4 3 d'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   22.402(4)
_cell_length_b                   22.402(4)
_cell_length_c                   22.402(4)
_cell_measurement_reflns_used    9829
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      24.85
_cell_measurement_theta_min      2.23
_cell_volume                     11242(3)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'TXS Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0984
_diffrn_reflns_av_sigmaI/netI    0.0291
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            58844
_diffrn_reflns_theta_full        25.15
_diffrn_reflns_theta_max         25.15
_diffrn_reflns_theta_min         2.23
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.9949
_exptl_absorpt_correction_T_min  0.9739
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS version 2008/1, G.M Sheldrick, University of 
G\"ttingen, Germany, 2008.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.094
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4032
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.157
_refine_diff_density_min         -0.148
_refine_diff_density_rms         0.027
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     109
_refine_ls_number_reflns         1691
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0345
_refine_ls_R_factor_gt           0.0297
_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^)+(0.0469P)^2^+3.3475P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0761
_refine_ls_wR_factor_ref         0.0806
_reflns_number_gt                1566
_reflns_number_total             1691
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om300032c_si_001.cif
_cod_data_source_block           Compound3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Cubic' changed to 'cubic' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        11243(3)
_cod_original_sg_symbol_H-M      I-43d
_cod_database_code               4078007