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_4341573
_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         'C77 H69 Mg N2, C7 H8'
_chemical_formula_sum            'C84 H77 Mg N2'
_chemical_formula_weight         1138.78
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                97.035(3)
_cell_angle_beta                 100.793(3)
_cell_angle_gamma                91.552(2)
_cell_formula_units_Z            2
_cell_length_a                   13.1791(6)
_cell_length_b                   13.2304(6)
_cell_length_c                   19.0177(7)
_cell_measurement_reflns_used    24828
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.103
_cell_measurement_theta_min      2.910
_cell_volume                     3228.6(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & 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
;
 SHELXL-2013 (Sheldrick, 2013)
 Sheldrick GM (2008) Acta Crystallogr A64:112--122 and 
 C. B. H\"ubschle, G. M. Sheldrick and B. Dittrich
 ShelXle: a Qt graphical user interface for SHELXL
 J. Appl. Cryst., 44, (2011) 1281-1284.
;
_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 0.990
_diffrn_measured_fraction_theta_max 0.948
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '171 1.9 degree images with \f 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  0.1063
_diffrn_reflns_av_unetI/netI     0.1155
_diffrn_reflns_Laue_measured_fraction_full 0.990
_diffrn_reflns_Laue_measured_fraction_max 0.948
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            37589
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.948
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.083
_diffrn_reflns_theta_min         3.615
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  1.002
_exptl_absorpt_correction_T_min  0.844
_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    1.171
_exptl_crystal_description       needle
_exptl_crystal_F_000             1214
_exptl_crystal_size_max          0.550
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     816
_refine_ls_number_reflns         13469
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.1614
_refine_ls_R_factor_gt           0.0739
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0595P)^2^+1.8349P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1480
_refine_ls_wR_factor_ref         0.1856
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7075
_reflns_number_total             13469
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic501638v_si_002.cif
_cod_data_source_block           7
_cod_database_code               4341573
_shelx_estimated_absorpt_t_min   0.960
_shelx_estimated_absorpt_t_max   0.998
_shelxl_version_number           2013-4
_shelx_res_checksum              8477
_shelx_hkl_checksum              92057