Synthesis, structure and reactivity study of magnesium amidinato complexes derived from carbodiimides and N,N'-bis(2,6-diisopropylphenyl)-1,4-diaza-butadiene ligands.
Anga, Srinivas; Bhattacharjee, Jayeeta; Harinath, Adimulam; Panda, Tarun K.; Dalton transactions (Cambridge, England : 2003) 44 (2015) 955–965; doi:10.1039/c4dt03074e

data_7033004
_publ_section_title
;
 Synthesis, structure and reactivity study of magnesium amidinato
 complexes derived from carbodiimides and
 N,N'-bis(2,6-diisopropylphenyl)-1,4-diaza-butadiene ligands.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              955
_journal_page_last               965
_journal_paper_doi               10.1039/c4dt03074e
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C54 H72 Mg2 N4'
_chemical_formula_sum            'C54 H72 Mg2 N4'
_chemical_formula_weight         825.78
_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                 122.834(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.618(5)
_cell_length_b                   11.279(5)
_cell_length_c                   19.871(5)
_cell_measurement_reflns_used    5655
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.4
_cell_measurement_theta_min      3.0
_cell_volume                     2376.2(16)
_computing_cell_refinement       'RAPID-AUTO (Rigaku, 1998)'
_computing_data_collection       'RAPID-AUTO (Rigaku, 1998)'
_computing_data_reduction        'teXan (Rigaku/MSC, 2004)'
_computing_molecular_graphics    'ORTEP III & Olex 2.1'
_computing_publication_material  WinGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR 97'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID Imaging Plate'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0857
_diffrn_reflns_av_sigmaI/netI    0.0491
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            37443
_diffrn_reflns_theta_full        27.44
_diffrn_reflns_theta_max         27.44
_diffrn_reflns_theta_min         3.04
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.56447
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
Higashi, H. (1995), ABSCOR: Program for Absorption
Correction, Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.153
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.428
_refine_diff_density_min         -0.229
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         5407
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0633
_refine_ls_R_factor_gt           0.0460
_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^)+(0.0478P)^2^+0.8000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1064
_refine_ls_wR_factor_ref         0.1166
_reflns_number_gt                4258
_reflns_number_total             5407
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c4dt03074e2.cif
_cod_data_source_block           compound_1
_cod_depositor_comments
'Adding full bibliography for 7033004--7033010.cif.'
_cod_original_cell_volume        2376.2(15)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7033004