Developing catalytic applications of cooperative bimetallics: competitive hydroamination/trimerization reactions of isocyanates catalysed by sodium magnesiates
Alberto Hernan-Gomez; Tyne D. Bradley; Alan R. Kennedy; Zoe Livingstone; Stuart D. Robertson; Eva Hevia; Chem.Commun. 49 (2013) 8659–; doi:10.1039/c3cc45167d

data_7109771
_publ_section_title
;
 Developing catalytic applications of cooperative bimetallics: competitive
 hydroamination/trimerization reactions of isocyanates catalysed by sodium
 magnesiates
;
_journal_name_full               Chem.Commun.
_journal_page_first              8659
_journal_paper_doi               10.1039/c3cc45167d
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety         'C63 H81 Mg N6 Na O6'
_chemical_formula_sum            'C63 H81 Mg N6 Na O6'
_chemical_formula_weight         1065.64
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           146
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3'
_symmetry_space_group_name_H-M   'R 3 :H'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   20.8559(6)
_cell_length_b                   20.8559(6)
_cell_length_c                   11.8574(4)
_cell_measurement_reflns_used    12971
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      30.2960
_cell_measurement_theta_min      2.8294
_cell_volume                     4466.6(2)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.950
_diffrn_measurement_device_type  'Oxford Diffraction Gemini S'
_diffrn_measurement_method       '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  0.0274
_diffrn_reflns_av_sigmaI/netI    0.0274
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            23200
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         30.37
_diffrn_reflns_theta_min         2.84
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94259
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.189
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1716
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.241
_refine_diff_density_min         -0.267
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     232
_refine_ls_number_reflns         5471
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.092
_refine_ls_R_factor_all          0.0389
_refine_ls_R_factor_gt           0.0344
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0554P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0860
_refine_ls_wR_factor_ref         0.0870
_reflns_number_gt                4944
_reflns_number_total             5471
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            c3cc45167d.txt
_cod_data_source_block           srzl1010
_cod_original_sg_symbol_H-M      'R 3'
_cod_database_code               7109771