Group 1 and 2 cyclic (alkyl)(amino)carbene complexes.
Turner, Zoë R; Buffet, Jean-Charles; Dalton transactions (Cambridge, England : 2003) 44 (2015) 12985–12989; doi:10.1039/c5dt02270c

data_7035544
_publ_section_title
;
 Group 1 and 2 cyclic (alkyl)(amino)carbene complexes.
;
_journal_issue                   29
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12985
_journal_page_last               12989
_journal_paper_doi               10.1039/c5dt02270c
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C32 H67 Mg N3 Si4'
_chemical_formula_sum            'C32 H67 Mg N3 Si4'
_chemical_formula_weight         630.55
_chemical_properties_physical    'Air-sensitive, Moisture-sensitive'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
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_audit_update_record
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2015-04-17 deposited with the CCDC.
2015-06-24 downloaded from the CCDC.
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_computing_cell_refinement
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
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_computing_data_collection
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
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_computing_molecular_graphics
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ORTEP3 for Windows. Farrugia, L. J. J. Appl. Cryst. 1997, 30, 565.
;
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution
;
SUPERFLIP. Palatinus, L.; Chapuis, G. 
J. Appl. Cryst. 2007, 40, 786-790.
;
_diffrn_ambient_temperature      150(2)
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_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0238
_diffrn_reflns_av_unetI/netI     0.0184
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       16
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_diffrn_reflns_number            35149
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         76.138
_diffrn_reflns_theta_min         3.588
_exptl_absorpt_coefficient_mu    1.697
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.81383
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.049
_exptl_crystal_description       block
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.681
_refine_diff_density_min         -0.708
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     381
_refine_ls_number_reflns         8275
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0370
_refine_ls_R_factor_gt           0.0327
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0450P)^2^+1.3235P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0856
_refine_ls_wR_factor_ref         0.0890
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7419
_reflns_number_total             8275
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5dt02270c2.cif
_cod_data_source_block           009ZRT15
_cod_depositor_comments
'Adding full bibliography for 7035544--7035548.cif.'
_cod_original_cell_volume        3991.02(6)
_cod_database_code               7035544
_shelx_estimated_absorpt_t_min   0.822
_shelx_estimated_absorpt_t_max   0.890
_shelxl_version_number           2014-3
_shelx_res_checksum              67460