Magnesiacycloalkanes with Different Ring Sizes
Fischer, Reinald; Görls, Helmar; Langer, Jens; Enke, Marcel; Westerhausen, Matthias; Organometallics 35 (2016) 587–; doi:10.1021/acs.organomet.5b01010

data_4088328
_publ_section_title
;
 Magnesiacycloalkanes with Different Ring Sizes
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              587
_journal_paper_doi               10.1021/acs.organomet.5b01010
_journal_volume                  35
_journal_year                    2016
_chemical_formula_moiety         'C23 H50 Br2 Mg2 O4 Si2'
_chemical_formula_sum            'C23 H50 Br2 Mg2 O4 Si2'
_chemical_formula_weight         655.25
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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
_cell_angle_beta                 93.245(1)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   34.2935(6)
_cell_length_b                   13.5929(2)
_cell_length_c                   15.3427(2)
_cell_measurement_reflns_used    8171
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.63
_cell_volume                     7140.50(19)
_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 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0338
_diffrn_reflns_av_sigmaI/netI    0.0365
_diffrn_reflns_limit_h_max       44
_diffrn_reflns_limit_h_min       -44
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            8171
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.63
_exptl_absorpt_coefficient_mu    2.395
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6231
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker-AXS, 2002'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.219
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.136
_exptl_crystal_size_mid          0.106
_exptl_crystal_size_min          0.098
_refine_diff_density_max         0.927
_refine_diff_density_min         -0.653
_refine_diff_density_rms         0.099
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     338
_refine_ls_number_reflns         8171
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0697
_refine_ls_R_factor_gt           0.0526
_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^)+(0.0688P)^2^+27.6869P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1407
_refine_ls_wR_factor_ref         0.1492
_reflns_number_gt                6564
_reflns_number_total             8171
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5b01010_si_002.cif
_cod_data_source_block           FO5233
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4088328