Enantiopure dimagnesium(i) and magnesium(ii) hydride complexes incorporating chiral amidinate or β-diketiminate ligands.
de Bruin-Dickason, Caspar N; Rosengarten, Christopher A.; Deacon, Glen B.; Jones, Cameron; Chemical communications (Cambridge, England) 57 (2021) 1599–1602; doi:10.1039/d0cc07947b

data_7127816
_publ_section_title
;
 Enantiopure dimagnesium(i) and magnesium(ii) hydride complexes
 incorporating chiral amidinate or \b-diketiminate ligands.
;
_journal_issue                   13
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              1599
_journal_page_last               1602
_journal_paper_doi               10.1039/d0cc07947b
_journal_volume                  57
_journal_year                    2021
_chemical_formula_sum            'C50 H66 Mg2 N4'
_chemical_formula_weight         771.68
_space_group_crystal_system      triclinic
_space_group_IT_number           1
_space_group_name_Hall           'P 1'
_space_group_name_H-M_alt        'P 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2020-12-03 deposited with the CCDC.	2021-01-12 downloaded from the CCDC.
;
_cell_angle_alpha                109.948(2)
_cell_angle_beta                 97.6830(10)
_cell_angle_gamma                99.6260(10)
_cell_formula_units_Z            1
_cell_length_a                   9.34820(10)
_cell_length_b                   11.4823(2)
_cell_length_c                   12.0801(2)
_cell_measurement_reflns_used    24580
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      31.1430
_cell_measurement_theta_min      3.6030
_cell_volume                     1175.98(4)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_molecular_graphics    xseed
_computing_publication_material  Ciftab
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'XtaLAB Synergy, Dualflex, HyPix'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0258
_diffrn_reflns_av_unetI/netI     0.0211
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            35181
_diffrn_reflns_point_group_measured_fraction_full 0.967
_diffrn_reflns_point_group_measured_fraction_max 0.967
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.499
_diffrn_reflns_theta_min         3.341
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94449
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.090
_exptl_crystal_description       block
_exptl_crystal_F_000             418
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.210
_exptl_crystal_size_min          0.160
_refine_diff_density_max         0.212
_refine_diff_density_min         -0.171
_refine_diff_density_rms         0.029
_refine_ls_abs_structure_details
;
 Flack x determined using 3849 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.05(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     519
_refine_ls_number_reflns         8512
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0287
_refine_ls_R_factor_gt           0.0278
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0473P)^2^+0.1623P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0755
_refine_ls_wR_factor_ref         0.0760
_reflns_Friedel_coverage         0.939
_reflns_Friedel_fraction_full    0.937
_reflns_Friedel_fraction_max     0.936
_reflns_number_gt                8279
_reflns_number_total             8512
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cc07947b2.cif
_cod_data_source_block           Cj1477
_cod_depositor_comments
'Adding full bibliography for 7127812--7127817.cif.'
_cod_original_cell_volume        1175.98(3)
_cod_database_code               7127816
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.979
_shelx_estimated_absorpt_t_max   0.986
_shelx_res_checksum              26936
_shelx_hkl_checksum              14560