Pyridine-amido aluminum catalyst precursors for 1,3-butadiene transition-metal-free stereospecific polymerization
Tang, Jian; Xu, Zijian; Liu, Zelong; Fu, Yuan; Hua, Jing; Polymer Chemistry 14 (2023) 980–989; doi:10.1039/D2PY01093C

data_1568470
_publ_section_title
;
 Pyridine-amido aluminum catalyst precursors for 1,3-butadiene
 transition-metal-free stereospecific polymerization
;
_journal_issue                   8
_journal_name_full               'Polymer Chemistry'
_journal_page_first              980
_journal_page_last               989
_journal_paper_doi               10.1039/D2PY01093C
_journal_volume                  14
_journal_year                    2023
_chemical_formula_moiety         'C22 H33 Al N2'
_chemical_formula_sum            'C22 H33 Al N2'
_chemical_formula_weight         352.48
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_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             2022-03-31
_audit_creation_method
;
Olex2 1.5
(compiled 2021.12.09 svn.r5202d8cf for OlexSys, GUI svn.r6439)
;
_audit_update_record
;
2022-05-26 deposited with the CCDC.	2023-01-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.136(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.6071(14)
_cell_length_b                   16.636(3)
_cell_length_c                   15.272(3)
_cell_measurement_reflns_used    4247
_cell_measurement_temperature    300
_cell_measurement_theta_max      22.784
_cell_measurement_theta_min      2.664
_cell_volume                     2186.3(7)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_collection       'Bruker D8 Venture diffractrometer'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_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 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      300
_diffrn_detector                 'CCD area detector'
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1456
_diffrn_reflns_av_unetI/netI     0.0838
_diffrn_reflns_Laue_measured_fraction_full 0.986
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            28010
_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        24.998
_diffrn_reflns_theta_max         24.998
_diffrn_reflns_theta_min         2.665
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5302
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0968 before and 0.0738 after correction. The Ratio of minimum to maximum transmission is 0.7111. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.071
_exptl_crystal_description       block
_exptl_crystal_F_000             768
_exptl_crystal_recrystallization_method
'The crystals were growth by means of evaporation of a mixture of n-hexane and toluene at RT.'
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.205
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.062
_refine_ls_extinction_coef       0.041(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         3801
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.1409
_refine_ls_R_factor_gt           0.0722
_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^)+(0.0944P)^2^+0.6564P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1730
_refine_ls_wR_factor_ref         0.2165
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2035
_reflns_number_total             3801
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2py01093c2.cif
_cod_data_source_block           20211124f
_cod_depositor_comments
'Adding full bibliography for 1568468--1568473.cif.'
_cod_original_cell_volume        2186.3(6)
_cod_database_code               1568470
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.988
_shelx_estimated_absorpt_t_min   0.976
_exptl_crystal_mounting_method
'The title complex was mounted in a sealed capillary.'
_olex2_refinement_description
;
1.a Ternary CH refined with riding coordinates:
 C15(H15), C18(H18)
1.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C11(H11), C12(H12), C13(H13)
1.c Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C8(H8A,H8B,H8C), C16(H16A,H16B,H16C), C17(H17A,H17B,H17C),
 C19(H19A,H19B,H19C), C20(H20A,H20B,H20C), C21(H21A,H21B,H21C), C22(H22A,H22B,
 H22C)
;
_shelx_res_checksum              76148
_olex2_submission_special_instructions 'No special instructions were received'