Unsymmetrical bis(anilido)xanthene ligands: development and use in the preparation of magnesium diamide complexes.
Evans, Matthew J.; Jones, Cameron; Chemical communications (Cambridge, England) 61 (2025) 11814–11817; doi:10.1039/d5cc03202d

data_7134781
_publ_section_title
;
 Unsymmetrical bis(anilido)xanthene ligands: development and use in the
 preparation of magnesium diamide complexes.
;
_journal_issue                   63
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              11814
_journal_page_last               11817
_journal_paper_doi               10.1039/d5cc03202d
_journal_volume                  61
_journal_year                    2025
_chemical_formula_sum            'C62.5 H80 N2 O'
_chemical_formula_weight         875.28
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     fmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2025-06-05 deposited with the CCDC.	2025-07-02 downloaded from the CCDC.
;
_cell_angle_alpha                89.6690(10)
_cell_angle_beta                 87.3360(10)
_cell_angle_gamma                89.3550(10)
_cell_formula_units_Z            4
_cell_length_a                   12.43860(10)
_cell_length_b                   19.1066(2)
_cell_length_c                   21.5188(3)
_cell_measurement_reflns_used    65011
_cell_measurement_temperature    123.01(10)
_cell_measurement_theta_max      79.9070
_cell_measurement_theta_min      4.0040
_cell_volume                     5108.22(10)
_computing_cell_refinement       'CrysAlisPro 1.171.42.70a (Rigaku OD, 2022)'
_computing_data_collection       'CrysAlisPro 1.171.42.70a (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.70a (Rigaku OD, 2022)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      123.01(10)
_diffrn_detector                 'Hybrid Pixel Array Detector'
_diffrn_detector_area_resol_mean 10.0000
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy, Dualflex, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0619
_diffrn_reflns_av_unetI/netI     0.0484
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.983
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            115683
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.983
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         80.121
_diffrn_reflns_theta_min         3.557
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'PhotonJet (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.495
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.74947
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.42.70a (Rigaku Oxford Diffraction, 2022)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.138
_exptl_crystal_description       plate
_exptl_crystal_F_000             1908
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.160
_refine_diff_density_max         1.451
_refine_diff_density_min         -0.621
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1197
_refine_ls_number_reflns         21944
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0716
_refine_ls_R_factor_gt           0.0639
_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^)+(0.1124P)^2^+1.6491P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1845
_refine_ls_wR_factor_ref         0.1945
_reflns_Friedel_coverage         0.000
_reflns_number_gt                18487
_reflns_number_total             21944
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc03202d2.cif
_cod_data_source_block           cj1744
_cod_depositor_comments
'Adding full bibliography for 7134774--7134781.cif.'
_cod_original_formula_sum        'C62.50 H80 N2 O'
_cod_database_code               7134781
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.866
_shelx_estimated_absorpt_t_max   0.925
_shelx_res_checksum              78537
_shelx_hkl_checksum              72049