Synthesis and characterisation of magnesium methyl complexes with monoanionic chelating nitrogen donor ligands and their reaction with dioxygen
Bailey, Philip J.; Dick, Caroline M. E.; Fabre, Sylvie; Parsons, Simon; Journal of the Chemical Society, Dalton Transactions  (2000) 1655–; doi:10.1039/b001316l

data_7009469
_publ_section_title
;
 Synthesis and characterisation of magnesium methyl complexes with
 monoanionic chelating nitrogen donor ligands and their reaction with
 dioxygen
;
_journal_issue                   10
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              1655
_journal_paper_doi               10.1039/b001316l
_journal_year                    2000
_chemical_formula_moiety         '[Mg2(mu-Me)2L2]'
_chemical_formula_sum            'C60 H88 Mg2 N4'
_chemical_formula_weight         913.96
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 108.02(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   14.068(5)
_cell_length_b                   14.903(7)
_cell_length_c                   14.110(5)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    220(2)
_cell_measurement_theta_max      22
_cell_measurement_theta_min      20
_cell_volume                     2813(2)
_computing_cell_refinement       'Stoe DIF4'
_computing_data_collection       'Stoe DIF4'
_computing_data_reduction        'Stoe REDU4'
_computing_molecular_graphics    SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      220(2)
_diffrn_measured_fraction_theta_full 0.898
_diffrn_measured_fraction_theta_max 0.898
_diffrn_measurement_method       Omega-theta
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0872
_diffrn_reflns_av_sigmaI/netI    0.0378
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4881
_diffrn_reflns_theta_full        70.23
_diffrn_reflns_theta_max         70.23
_diffrn_reflns_theta_min         3.88
_diffrn_standards_decay_%        +/-1
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.666
_exptl_absorpt_correction_T_max  0.865
_exptl_absorpt_correction_T_min  0.701
_exptl_absorpt_correction_type   'Optimised numerical'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.079
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1000
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.407
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.050
_refine_ls_extinction_coef       0.0012(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4807
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1054
_refine_ls_R_factor_gt           0.0720
_refine_ls_shift/su_max          0.022
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1225P)^2^+1.1723P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1910
_refine_ls_wR_factor_ref         0.2189
_reflns_number_gt                3228
_reflns_number_total             4807
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b001316l.txt
_cod_data_source_block           sfa84b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_atom_sites_solution_hydrogens' value 'geometric' was changed to
'geom'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7009469