Al and Zn phenoxy-amidine complexes for lactide ROP catalysis.
Théron, Benjamin; Vaillant-Coindard, Valentin; Balan, Cédric; Rousselin, Yoann; Bayardon, Jérôme; Malacea-Kabbara, Raluca; Le Gendre, Pierre; Dalton transactions (Cambridge, England : 2003)  (2023) –; doi:10.1039/d3dt01216f

data_7713139
_publ_section_title
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 Al and Zn phenoxy-amidine complexes for lactide ROP catalysis.
;
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_paper_doi               10.1039/d3dt01216f
_journal_year                    2023
_chemical_formula_moiety         'C28 H46 N6 O2 Zn2'
_chemical_formula_sum            'C28 H46 N6 O2 Zn2'
_chemical_formula_weight         629.45
_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
_atom_sites_solution_primary     dual
_audit_creation_date             2021-01-19
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6226)
;
_audit_update_record
;
2022-06-27 deposited with the CCDC.	2023-05-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.793(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.0934(6)
_cell_length_b                   14.4079(8)
_cell_length_c                   11.0432(7)
_cell_measurement_reflns_used    9889
_cell_measurement_temperature    100.0(1)
_cell_measurement_theta_max      27.53
_cell_measurement_theta_min      2.40
_cell_volume                     1529.14(16)
_computing_cell_refinement       'SAINT V8.40B (Bruker, 2016)'
_computing_data_reduction        'SAINT V8.40B (Bruker, 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  (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.0(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0410
_diffrn_reflns_av_unetI/netI     0.0115
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            81240
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.543
_diffrn_reflns_theta_min         2.548
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.603
_exptl_absorpt_correction_T_max  0.7142
_exptl_absorpt_correction_T_min  0.6160
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016) was used for absorption correction.
wR2(int) was 0.0629 before and 0.0527 after correction.
The Ratio of minimum to maximum transmission is 0.8625.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.367
_exptl_crystal_description       prism
_exptl_crystal_F_000             664
_exptl_crystal_recrystallization_method
'The material was recrystallised from DCM by slow evaporation'
_exptl_crystal_size_max          0.417
_exptl_crystal_size_mid          0.201
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.360
_refine_diff_density_min         -0.294
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         3525
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0253
_refine_ls_R_factor_gt           0.0198
_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^)+(0.0222P)^2^+0.8573P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0477
_refine_ls_wR_factor_ref         0.0500
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3108
_reflns_number_total             3525
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3dt01216f2.cif
_cod_data_source_block           compound_6c
_cod_database_code               7713139
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.784
_shelx_estimated_absorpt_t_min   0.555
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C9(H9A,H9B), C13(H13A,H13B), C10(H10A,H10B)
2.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C6(H6), C7(H7)
2.c Idealised Me refined as rotating group:
 C14(H14A,H14B,H14C), C8(H8A,H8B,H8C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C)
;
_shelx_res_checksum              774
_shelx_hkl_checksum              7534
_olex2_diffrn_ambient_temperature_device 'Oxford Cryosystems'
_olex2_exptl_crystal_mounting_method
'The crystal was mounted on a MITIGEN holder oil'
_olex2_submission_special_instructions 'No special instructions were received'