An Approach to Pin Down the Solid-State Structure of the “Turbo Grignard”
Blasberg, Florian; Bolte, Michael; Wagner, Matthias; Lerner, Hans-Wolfram; Organometallics 31 (2012) 1001–; doi:10.1021/om201080t

data_4068078
_publ_section_title
;
 An Approach to Pin Down the Solid-State Structure of the &#x201C;Turbo
 Grignard&#x201D;
;
_journal_issue                   3
_journal_name_full               Organometallics
_journal_page_first              1001
_journal_paper_doi               10.1021/om201080t
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C24 H56 Mg4 O4'
_chemical_formula_sum            'C24 H56 Mg4 O4'
_chemical_formula_weight         505.93
_chemical_name_systematic        ?
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 108.183(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.5868(17)
_cell_length_b                   14.893(2)
_cell_length_c                   12.1232(18)
_cell_measurement_reflns_used    3463
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.6
_cell_measurement_theta_min      3.3
_cell_volume                     1644.5(5)
_computing_cell_refinement       'X-Area (Stoe & Cie, 2001)'
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        'X-Area (Stoe & Cie, 2001)'
_computing_molecular_graphics    'XP (Sheldrick, 2008)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008) '
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008) '
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'STOE IPDS II two-circle-diffractometer'
_diffrn_measurement_method       \w
_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  0.0665
_diffrn_reflns_av_sigmaI/netI    0.1035
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7418
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.66
_diffrn_reflns_theta_min         3.26
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.134
_exptl_absorpt_correction_T_max  0.9828
_exptl_absorpt_correction_T_min  0.9673
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'MULABS (Spek, 2003; Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.022
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.302
_refine_diff_density_min         -0.289
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.893
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     168
_refine_ls_number_reflns         3157
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      0.952
_refine_ls_R_factor_all          0.1170
_refine_ls_R_factor_gt           0.0559
_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^)+(0.0578P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1150
_refine_ls_wR_factor_ref         0.1326
_reflns_number_gt                1717
_reflns_number_total             3157
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om201080t_si_002.cif
_cod_data_source_block           wa1101
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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        1644.5(4)
_cod_original_sg_symbol_H-M      P21/m
_cod_database_code               4068078