Bimetallic aluminum alkyl complexes as highly active initiators for the polymerization of ε-caprolactone.
Li, Wenyi; Wu, Wenting; Wang, Yaorong; Yao, Yingming; Zhang, Yong; Shen, Qi; Dalton transactions (Cambridge, England : 2003) 40 (2011) 11378–11381; doi:10.1039/c1dt11380a

data_7017099
_publ_section_title
;
 Bimetallic aluminum alkyl complexes as highly active initiators for the
 polymerization of \e-caprolactone.
;
_journal_issue                   43
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              11378
_journal_page_last               11381
_journal_paper_doi               10.1039/c1dt11380a
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C30 H48 Al2 N2 O2'
_chemical_formula_sum            'C30 H48 Al2 N2 O2'
_chemical_formula_weight         522.66
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.850(6)
_cell_angle_beta                 90.895(6)
_cell_angle_gamma                95.683(6)
_cell_formula_units_Z            2
_cell_length_a                   8.1586(16)
_cell_length_b                   9.0924(19)
_cell_length_c                   20.628(4)
_cell_measurement_reflns_used    6103
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     1522.3(5)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalStructure
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_detector_area_resol_mean 14.63
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0421
_diffrn_reflns_av_sigmaI/netI    0.0491
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            14219
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.02
_exptl_absorpt_coefficient_mu    0.123
_exptl_absorpt_correction_T_max  0.938
_exptl_absorpt_correction_T_min  0.786
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.140
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.60
_exptl_crystal_size_min          0.50
_refine_diff_density_max         0.326
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     341
_refine_ls_number_reflns         5604
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.120
_refine_ls_R_factor_all          0.0851
_refine_ls_R_factor_gt           0.0652
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0799P)^2^+0.8723P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1713
_refine_ls_wR_factor_ref         0.1839
_reflns_number_gt                4266
_reflns_number_total             5604
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt11380a.txt
_cod_data_source_block           complex2
_cod_database_code               7017099