Monomeric and dimeric Al(iii) complexes for the production of polylactide.
Kirk, Sarah M.; Quilter, Helena C.; Buchard, Antoine; Thomas, Lynne H.; Kociok-Kohn, Gabriele; Jones, Matthew D.; Dalton transactions (Cambridge, England : 2003) 45 (2016) 13846–13852; doi:10.1039/c6dt02861f

data_7040140
_publ_section_title
;
 Monomeric and dimeric Al(iii) complexes for the production of
 polylactide.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13846
_journal_page_last               13852
_journal_paper_doi               10.1039/c6dt02861f
_journal_volume                  45
_journal_year                    2016
_chemical_formula_sum            'C19 H18 Al N O'
_chemical_formula_weight         303.32
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-07-11 deposited with the CCDC.
2016-08-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 97.5650(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.2070(2)
_cell_length_b                   7.01600(10)
_cell_length_c                   32.8480(6)
_cell_measurement_reflns_used    29233
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.51
_cell_volume                     3245.67(9)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'kappa CCD'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0583
_diffrn_reflns_av_unetI/netI     0.0454
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            22280
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.436
_diffrn_reflns_theta_min         3.545
_exptl_absorpt_coefficient_mu    0.126
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.241
_exptl_crystal_description       plate
_exptl_crystal_F_000             1280
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.050
_exptl_transmission_factor_max   0.9937
_exptl_transmission_factor_min   0.9753
_refine_diff_density_max         0.245
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3673
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.0709
_refine_ls_R_factor_gt           0.0430
_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^)+(0.0443P)^2^+2.6681P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0969
_refine_ls_wR_factor_ref         0.1103
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2674
_reflns_number_total             3673
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6dt02861f2.cif
_cod_data_source_block           Al_1_Me2
_cod_depositor_comments
'Adding full bibliography for 7040140--7040144.cif.'
_cod_database_code               7040140
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.975
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              92594