Aluminum methyl, alkoxide and α-alkoxy ester complexes supported by 6,6'-dimethylbiphenyl-bridged salen ligands: synthesis, characterization and catalysis for rac-lactide polymerization.
Kan, Chao; Ge, Jilei; Ma, Haiyan; Dalton transactions (Cambridge, England : 2003) 45 (2016) 6682–6695; doi:10.1039/c5dt04633e

data_7702042
_publ_section_title
;
 Aluminum methyl, alkoxide and \a-alkoxy ester complexes supported by
 6,6'-dimethylbiphenyl-bridged salen ligands: synthesis, characterization
 and catalysis for rac-lactide polymerization.
;
_journal_issue                   15
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6682
_journal_page_last               6695
_journal_paper_doi               10.1039/c5dt04633e
_journal_volume                  45
_journal_year                    2016
_chemical_formula_sum            'C39 H45 Al N2 O2'
_chemical_formula_weight         600.75
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-07-17 deposited with the CCDC.
2016-03-01 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 109.235(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   29.421(5)
_cell_length_b                   11.873(2)
_cell_length_c                   20.751(4)
_cell_measurement_reflns_used    1683
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      20.07
_cell_measurement_theta_min      2.25
_cell_volume                     6844(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1210
_diffrn_reflns_av_sigmaI/netI    0.1452
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            33844
_diffrn_reflns_theta_full        30.78
_diffrn_reflns_theta_max         30.78
_diffrn_reflns_theta_min         1.47
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_T_max  0.9953
_exptl_absorpt_correction_T_min  0.9722
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.166
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2576
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.426
_refine_diff_density_min         -0.424
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.965
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     408
_refine_ls_number_reflns         10581
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.965
_refine_ls_R_factor_all          0.1712
_refine_ls_R_factor_gt           0.0717
_refine_ls_shift/su_max          0.025
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0900P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1589
_refine_ls_wR_factor_ref         0.2116
_reflns_number_gt                4880
_reflns_number_total             10581
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5dt04633e2.cif
_cod_data_source_block           mo_dm13716_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7702042