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_7713143
_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         'C22 H32 N4 O2 Zn2'
_chemical_formula_sum            'C22 H32 N4 O2 Zn2'
_chemical_formula_weight         515.25
_space_group_crystal_system      orthorhombic
_space_group_IT_number           64
_space_group_name_Hall           '-C 2ac 2'
_space_group_name_H-M_alt        'C m c e'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-06-20
_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                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.3231(6)
_cell_length_b                   14.4461(9)
_cell_length_c                   15.2624(10)
_cell_measurement_reflns_used    6420
_cell_measurement_temperature    100.0(1)
_cell_measurement_theta_max      30.27
_cell_measurement_theta_min      2.67
_cell_volume                     2276.1(2)
_computing_cell_refinement       'SAINT V8.40A (Bruker, 2019)'
_computing_data_collection       'APEX3 (Bruker, 2015)'
_computing_data_reduction        'SAINT V8.40A (Bruker, 2019)'
_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      100.00
_diffrn_detector_area_resol_mean '1024 x 1024'
_diffrn_detector_type            'Photon 100'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_device       '\k-geometry diffractometer'
_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  0.0684
_diffrn_reflns_av_unetI/netI     0.0437
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.943
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            19802
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.943
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.580
_diffrn_reflns_theta_min         2.669
_exptl_absorpt_coefficient_mu    2.133
_exptl_absorpt_correction_T_max  0.7903
_exptl_absorpt_correction_T_min  0.6900
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016) was used for absorption correction.
wR2(int) was 0.0643 before and 0.0576 after correction.
The Ratio of minimum to maximum transmission is 0.8731.
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    1.504
_exptl_crystal_description       plate
_exptl_crystal_F_000             1072
_exptl_crystal_recrystallization_method
'The material was recrystallised from DCM by slow evaporation'
_exptl_crystal_size_max          0.176
_exptl_crystal_size_mid          0.109
_exptl_crystal_size_min          0.099
_refine_diff_density_max         0.511
_refine_diff_density_min         -0.611
_refine_diff_density_rms         0.101
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         1888
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0620
_refine_ls_R_factor_gt           0.0331
_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^)+(0.0197P)^2^+3.0925P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0511
_refine_ls_wR_factor_ref         0.0579
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1456
_reflns_number_total             1888
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3dt01216f2.cif
_cod_data_source_block           compound_1c
_cod_original_sg_symbol_Hall     '-C 2bc 2'
_cod_database_code               7713143
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.817
_shelx_estimated_absorpt_t_min   0.705
_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. Others
 Fixed Sof: O1(0.5) N1(0.5) N2(0.5) C1(0.5) C2(0.5) C3(0.5) H3(0.5) C4(0.5)
 H4(0.5) C5(0.5) H5(0.5) C6(0.5) H6(0.5) C7(0.5) H7(0.5) C8(0.5) H8A(0.5)
 H8B(0.5) H8C(0.5) C9(0.5) H9A(0.5) H9B(0.5) H9C(0.5) C10(0.5) H10A(0.5)
 H10B(0.5) C11(0.5) H11A(0.5) H11B(0.5) H11C(0.5)
3.a Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B)
3.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C6(H6), C7(H7)
3.c Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C11(H11A,H11B,H11C)
;
_shelx_res_checksum              36493
_shelx_hkl_checksum              34239
_olex2_diffrn_ambient_temperature_device 'Oxford Cryosystems'
_olex2_submission_special_instructions 'No special instructions were received'