Synthesis and characterisation of magnesium complexes containing sterically demanding N,N'-bis(aryl)amidinate ligands.
Moxey, Graeme J.; Ortu, Fabrizio; Goldney Sidley, Leon; Strandberg, Helen N.; Blake, Alexander J.; Lewis, William; Kays, Deborah L.; Dalton transactions (Cambridge, England : 2003) 43 (2014) 4838–4846; doi:10.1039/c3dt53234h

data_7028688
_publ_section_title
;
 Synthesis and characterisation of magnesium complexes containing
 sterically demanding N,N'-bis(aryl)amidinate ligands.
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4838
_journal_page_last               4846
_journal_paper_doi               10.1039/c3dt53234h
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C54 H62 Mg N4 O, C4 H8 O'
_chemical_formula_sum            'C58 H70 Mg N4 O2'
_chemical_formula_weight         879.49
_chemical_name_systematic
; 
 ? 
;
_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           'enCIFer editing of SHELXL-97 created file'
_cell_angle_alpha                90.00
_cell_angle_beta                 112.1894(16)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.57310(17)
_cell_length_b                   29.1302(4)
_cell_length_c                   15.8661(2)
_cell_measurement_reflns_used    15542
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      74.30
_cell_measurement_theta_min      3.37
_cell_volume                     5380.70(14)
_computing_cell_refinement
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_data_collection
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_data_reduction
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_molecular_graphics    Olex2
_computing_publication_material
'enCIFer(Allen et al.,2004);PLATON(Spek,2003)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector_area_resol_mean 10.3613
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device_type  'SuperNova, Single source at offset), 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  0.0204
_diffrn_reflns_av_sigmaI/netI    0.0205
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            24049
_diffrn_reflns_theta_full        67.50
_diffrn_reflns_theta_max         74.61
_diffrn_reflns_theta_min         3.37
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.607
_exptl_absorpt_correction_T_max  0.882
_exptl_absorpt_correction_T_min  0.780
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
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CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET) 
(compiled Jan  5 2010,16:28:46) 
Analytical numeric absorption correction using a multifaceted crystal 
model based on expressions derived by R.C. Clark & J.S. Reid. 
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897) 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.086
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1896
_exptl_crystal_size_max          0.6823
_exptl_crystal_size_mid          0.3240
_exptl_crystal_size_min          0.2491
_platon_squeeze_details
;
;
_refine_diff_density_max         0.223
_refine_diff_density_min         -0.323
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.082
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     553
_refine_ls_number_reflns         10711
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0403
_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^)+(0.0626P)^2^+0.9766P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1103
_refine_ls_wR_factor_ref         0.1148
_reflns_number_gt                8895
_reflns_number_total             10711
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3dt53234h.txt
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'MONOCLINIC' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        5380.72(12)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7028688