Magnesium(ii) complexes supported by indole- and pyrrole-containing Schiff-base ligands: syntheses, structures, and applications as precatalysts in the hydroboration of nitriles and alkynes
Wu, Mengxiang; Chen, Ling; Yang, Xiaohan; Li, Yahong; New Journal of Chemistry 48 (2024) 7125–7133; doi:10.1039/D4NJ00492B

data_7063104
_publ_section_title
;
 Magnesium(ii) complexes supported by indole- and pyrrole-containing
 Schiff-base ligands: syntheses, structures, and applications as
 precatalysts in the hydroboration of nitriles and alkynes
;
_journal_issue                   16
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              7125
_journal_page_last               7133
_journal_paper_doi               10.1039/D4NJ00492B
_journal_volume                  48
_journal_year                    2024
_chemical_formula_moiety         'C44 H60 Mg2 N8'
_chemical_formula_sum            'C44 H60 Mg2 N8'
_chemical_formula_weight         749.62
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2024-03-07
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2024-03-18 deposited with the CCDC.	2024-03-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.944(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.0809(6)
_cell_length_b                   15.1297(7)
_cell_length_c                   20.6694(10)
_cell_measurement_reflns_used    9866
_cell_measurement_temperature    223.00(10)
_cell_measurement_theta_max      26.907
_cell_measurement_theta_min      2.318
_cell_volume                     4085.3(3)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_collection       'Bruker SMART APEX II diffractometer'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      223.00(10)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0955
_diffrn_reflns_av_unetI/netI     0.0557
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            89160
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.541
_diffrn_reflns_theta_min         2.249
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.7432
_exptl_absorpt_correction_T_min  0.7046
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1134 before and 0.0757 after correction.
The Ratio of minimum to maximum transmission is 0.9481.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.219
_exptl_crystal_description       block
_exptl_crystal_F_000             1616
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.335
_refine_diff_density_min         -0.245
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.113
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     522
_refine_ls_number_reflns         9397
_refine_ls_number_restraints     83
_refine_ls_restrained_S_all      1.111
_refine_ls_R_factor_all          0.1402
_refine_ls_R_factor_gt           0.0832
_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^)+(0.0381P)^2^+5.0280P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1505
_refine_ls_wR_factor_ref         0.1759
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6011
_reflns_number_total             9397
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4nj00492b2.cif
_cod_data_source_block           5
_cod_depositor_comments
'Adding full bibliography for 7063101--7063105.cif.'
_cod_database_code               7063104
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.988
_shelx_estimated_absorpt_t_min   0.985
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All C(H,H,H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Uiso/Uaniso restraints and constraints
C32 \\sim C33 \\sim C34 \\sim C35 \\sim C33A \\sim C34A \\sim C35A: within 2A
with sigma of 0.01 and sigma for terminal atoms of 0.02 within 2A
3. Same fragment restrains
{C32, C33A, C34A, C35A} sigma for 1-2: 0.01, 1-3: 0.04
as in
{C32, C33, C34, C35}
4. Others
 Sof(H32C)=Sof(H32D)=Sof(C33A)=Sof(H33C)=Sof(H33D)=Sof(C34A)=Sof(H34C)=
 Sof(H34D)=Sof(C35A)=Sof(H35D)=Sof(H35E)=Sof(H35F)=1-FVAR(1)
 Sof(H32A)=Sof(H32B)=Sof(C33)=Sof(H33A)=Sof(H33B)=Sof(C34)=Sof(H34A)=Sof(H34B)=
 Sof(C35)=Sof(H35A)=Sof(H35B)=Sof(H35C)=FVAR(1)
5.a Ternary CH refined with riding coordinates:
 C9(H9), C31(H31)
5.b Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B), C11(H11A,H11B), C12(H12A,H12B), C14(H14A,H14B), C19(H19A,
 H19B), C20(H20A,H20B), C32(H32A,H32B), C32(H32C,H32D), C33(H33A,H33B),
 C34(H34A,H34B), C36(H36A,H36B), C41(H41A,H41B), C42(H42A,H42B), C33A(H33C,
 H33D), C34A(H34C,H34D)
5.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C5(H5), C6(H6), C7(H7), C16(H16), C17(H17), C18(H18),
 C24(H24), C26(H26), C27(H27), C28(H28), C29(H29), C38(H38), C39(H39), C40(H40)
5.d Idealised Me refined as rotating group:
 C13(H13A,H13B,H13C), C21(H21A,H21B,H21C), C22(H22A,H22B,H22C), C35(H35A,H35B,
 H35C), C43(H43A,H43B,H43C), C44(H44A,H44B,H44C), C35A(H35D,H35E,H35F)
;
_shelx_res_checksum              54446
_olex2_submission_special_instructions 'No special instructions were received'