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_7040144
_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_moiety         'C44 H60 Al2 N2 O2, C7 H8'
_chemical_formula_sum            'C51 H68 Al2 N2 O2'
_chemical_formula_weight         795.03
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_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                109.990(4)
_cell_angle_beta                 107.578(4)
_cell_angle_gamma                90.572(4)
_cell_formula_units_Z            2
_cell_length_a                   12.6028(6)
_cell_length_b                   12.7588(6)
_cell_length_c                   16.5415(5)
_cell_measurement_reflns_used    12680
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      66.4600
_cell_measurement_theta_min      2.9610
_cell_volume                     2363.7(2)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics
'ORTEP3 for Windows - Farrugia, L. J. J. Appl. Crystallogr. 1997, 30, 565'
_computing_publication_material
;
 'WinGX publication routines, Farrugia, 
 L. J., J. Appl. Crystallogr., 1999, 32, 837-838
;
_computing_structure_refinement
;
 SHELXL-2014/8 (Sheldrick, 2014)
 Sheldrick GM (2008) Acta Crystallogr A64:112-122 and 
 C. B. H\"ubschle, G. M. Sheldrick and B. Dittrich
 ShelXle: a Qt graphical user interface for SHELXL
 J. Appl. Cryst., 44, (2011) 1281-1284.
;
_computing_structure_solution
; 
 SHELXT
 Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
;
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      150.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.1150
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, EosS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_unetI/netI     0.0443
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            16144
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        67.110
_diffrn_reflns_theta_max         67.110
_diffrn_reflns_theta_min         3.709
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.848
_exptl_absorpt_correction_T_max  0.951
_exptl_absorpt_correction_T_min  0.898
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Analytical numeric absorption correction using a multifaceted crystal
            model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.117
_exptl_crystal_description       cube
_exptl_crystal_F_000             860
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.469
_refine_diff_density_min         -0.346
_refine_diff_density_rms         0.082
_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     532
_refine_ls_number_reflns         16144
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0722
_refine_ls_R_factor_gt           0.0542
_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^)+(0.1276P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1698
_refine_ls_wR_factor_ref         0.1885
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11984
_reflns_number_total             16144
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6dt02861f2.cif
_cod_data_source_block           Al2_7_Me4
_cod_depositor_comments
'Adding full bibliography for 7040140--7040144.cif.'
_cod_original_cell_volume        2363.75(19)
_cod_database_code               7040144
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.849
_shelx_estimated_absorpt_t_max   0.920
_oxdiff_exptl_absorpt_empirical_full_min 0.415
_oxdiff_exptl_absorpt_empirical_full_max 1.536
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_twin_items               2
_oxdiff_twin_integration_method  simultaneous
_twin_special_details
;
Component 2 rotated by 179.9964\% 
 around [-0.71 0.71 -0.00] (reciprocal) or [-0.71 0.71 0.02] (direct)
;
_shelx_res_checksum              16097