Mononuclear Three-Coordinate Magnesium Complexes of a Highly Sterically Encumbered β-Diketiminate Ligand.
Arrowsmith, Merle; Maitland, Brant; Kociok-Köhn, Gabriele; Stasch, Andreas; Jones, Cameron; Hill, Michael S.; Inorganic chemistry 53 (2014) 10543–10552; doi:10.1021/ic501638v

data_4341566
_publ_section_title
;
 Mononuclear Three-Coordinate Magnesium Complexes of a Highly Sterically
 Encumbered \b-Diketiminate Ligand.
;
_journal_issue                   19
_journal_name_full               'Inorganic chemistry'
_journal_page_first              10543
_journal_page_last               10552
_journal_paper_doi               10.1021/ic501638v
_journal_volume                  53
_journal_year                    2014
_chemical_formula_moiety         '2(C71 H62 N2), 0.7(C H Cl3), 1.6(C H Cl3) '
_chemical_formula_sum            'C144.3 H126.3 Cl6.9 N4'
_chemical_formula_weight         2161.00
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 109.1590(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   14.8918(2)
_cell_length_b                   22.3244(4)
_cell_length_c                   18.9375(3)
_cell_measurement_reflns_used    105188
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.028
_cell_measurement_theta_min      2.910
_cell_volume                     5947.07(17)
_computing_cell_refinement       'HKL Scalepack (Otwinski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
;
 DENZO-SCALEPACK Z. Otwinowski and W. Minor, " 
 Processing of X-ray Diffraction Data Collected in Oscillation Mode ", 
 Methods in Enzymology, Volume 276: Macromolecular Crystallography, 
 part A, p.307-326, 1997,C.W. Carter, Jr. & R. M. Sweet, Eds., Academic Press.
;
_computing_molecular_graphics
'ORTEP3 for Windows - Farrugia, L. J. J. Appl. Crystallogr. 1997, 30, 565'
_computing_publication_material
;
 'WinGX publication routines, Farrugia, 
 L. J., J. Appl. Crystallogr., 1999, 32, 837-838
;
_computing_structure_refinement
;
 SHELXL97 -Program for Crystal Structure Analysis (Release 97-2). 
 Sheldrick, G.M., Institut f\"ur Anorganische Chemie der Universit\"at, 
 Tammanstrasse 4, D-3400 G\"ottingen, Germany, 1998 
;
_computing_structure_solution
; 
 SIR97- Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C. , 
 Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R. 
 (1999) J. Appl. Cryst. 32, 115-119
;
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '391 1.5 degree images with \f and \w 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  0.0719
_diffrn_reflns_av_sigmaI/netI    0.0534
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            87101
_diffrn_reflns_theta_full        25.04
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         3.46
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.218
_exptl_absorpt_correction_T_max  0.9474
_exptl_absorpt_correction_T_min  0.9081
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.207
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2275
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.951
_refine_diff_density_min         -0.422
_refine_diff_density_rms         0.065
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.47(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1448
_refine_ls_number_reflns         20791
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0906
_refine_ls_R_factor_gt           0.0682
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1173P)^2^+2.6286P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1738
_refine_ls_wR_factor_ref         0.1912
_reflns_number_gt                16448
_reflns_number_total             20791
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic501638v_si_002.cif
_cod_data_source_block           1a*CHCl3
_cod_original_cell_volume        5947.07(16)
_cod_original_sg_symbol_H-M      'P 21'
_cod_original_formula_sum        'C144.30 H126.30 Cl6.90 N4'
_cod_database_code               4341566