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_7713134
_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         'C19 H25 Al N4 O2'
_chemical_formula_sum            'C19 H25 Al N4 O2'
_chemical_formula_weight         368.41
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-06-16
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2022-06-27 deposited with the CCDC.	2023-05-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.976(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.0344(13)
_cell_length_b                   13.1284(16)
_cell_length_c                   12.6875(15)
_cell_measurement_reflns_used    9714
_cell_measurement_temperature    120.0(1)
_cell_measurement_theta_max      27.36
_cell_measurement_theta_min      3.10
_cell_volume                     1906.7(4)
_computing_cell_refinement       'SAINT V8.40B (Bruker, 2016)'
_computing_data_reduction        'SAINT V8.40B (Bruker, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
_diffrn_ambient_temperature      120.0(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.993
_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  0.0620
_diffrn_reflns_av_unetI/netI     0.0261
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            49921
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.584
_diffrn_reflns_theta_min         2.563
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.127
_exptl_absorpt_correction_T_max  0.9705
_exptl_absorpt_correction_T_min  0.8925
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016) was used for absorption correction.
wR2(int) was 0.0681 before and 0.0568 after correction.
The Ratio of minimum to maximum transmission is 0.9196.
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    1.283
_exptl_crystal_description       prism
_exptl_crystal_F_000             784
_exptl_crystal_recrystallization_method
'The material was recrystallised from DCM by slow evaporation'
_exptl_crystal_size_max          0.627
_exptl_crystal_size_mid          0.224
_exptl_crystal_size_min          0.219
_refine_diff_density_max         0.338
_refine_diff_density_min         -0.386
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         4390
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0559
_refine_ls_R_factor_gt           0.0378
_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^)+(0.0395P)^2^+1.2720P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0867
_refine_ls_wR_factor_ref         0.0971
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3550
_reflns_number_total             4390
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3dt01216f2.cif
_cod_data_source_block           compound_1b
_cod_database_code               7713134
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.973
_shelx_estimated_absorpt_t_min   0.924
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C3A(H3A), C4(H4), C4A(H4A), C5(H5), C5A(H5A), C6(H6), C6A(H6A),
 C7(H7), C7A(H7A)
2.b Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C8A(H8AA,H8AB,H8AC), C9(H9A,H9B,H9C), C9A(H9AA,H9AB,H9AC),
 C10(H10A,H10B,H10C)
;
_shelx_res_checksum              51408
_shelx_hkl_checksum              84646
_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'