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_4341567
_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         'C71 H62 N2'
_chemical_formula_sum            'C71 H62 N2'
_chemical_formula_weight         943.22
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 112.216(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.9269(5)
_cell_length_b                   23.1043(5)
_cell_length_c                   17.6303(7)
_cell_measurement_temperature    123(2)
_cell_volume                     5251.8(4)
_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      123(2)
_diffrn_measurement_device_type  'Oxford Gemini Ultra'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0228
_diffrn_reflns_av_sigmaI/netI    0.0249
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            34121
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_T_max  0.989
_exptl_absorpt_correction_T_min  0.974
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE3 ABSPACK'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.193
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2008
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.242
_refine_diff_density_min         -0.187
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     668
_refine_ls_number_reflns         10311
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0382
_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^)+(0.0388P)^2^+1.8305P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0897
_refine_ls_wR_factor_ref         0.0962
_reflns_number_gt                8713
_reflns_number_total             10310
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic501638v_si_002.cif
_cod_data_source_block           1a*Toluene
_cod_original_cell_volume        5251.8(3)
_cod_database_code               4341567
_shelxl_version_number           2013-4
_shelx_res_checksum              92339
_shelx_hkl_checksum              48777