Magnesium aryloxides: synthesis, structure, solution behavior and magnesiate ion formation
Henderson, Kenneth W.; Honeyman, Gordon W.; Kennedy, Alan R.; Mulvey, Robert E.; Parkinson, John A.; Sherrington, David C.; Dalton Transactions  (2003) 1365–; doi:10.1039/b212608g

data_7012641
_publ_section_title
;
 Magnesium aryloxides: synthesis, structure, solution behavior and
 magnesiate ion formation
;
_journal_issue                   7
_journal_name_full               'Dalton Transactions'
_journal_page_first              1365
_journal_paper_doi               10.1039/b212608g
_journal_year                    2003
_chemical_formula_sum            'C34 H58 Mg N2 O2'
_chemical_formula_weight         551.13
_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                 96.118(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.6257(2)
_cell_length_b                   15.3910(2)
_cell_length_c                   18.7651(3)
_cell_measurement_reflns_used    7649
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     3338.54(9)
_computing_data_collection       'Collect and Denzo'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-92
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'phi and omega 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  0.0182
_diffrn_reflns_av_sigmaI/netI    0.0298
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            13620
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.72
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.097
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.55
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.271
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     368
_refine_ls_number_reflns         7604
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0379
_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^)+(0.0375P)^2^+1.1600P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0886
_refine_ls_wR_factor_ref         0.0959
_reflns_number_gt                6245
_reflns_number_total             7604
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b212608g.txt
_cod_data_source_block           h16
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7012641