Synthesis of Aluminum Complexes of Triaza Framework Ligands and Their Catalytic Activity toward Polymerization of ε-Caprolactone
Bakthavachalam, K.; Reddy, N. Dastagiri; Organometallics 32 (2013) 3174–; doi:10.1021/om3011432

data_4089388
_publ_section_title
;
 Synthesis of Aluminum Complexes of Triaza Framework Ligands and Their
 Catalytic Activity toward Polymerization of \e-Caprolactone
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              3174
_journal_paper_doi               10.1021/om3011432
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C84 H107 Li2 N6 O2'
_chemical_formula_weight         1246.64
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_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                116.520(2)
_cell_angle_beta                 92.559(2)
_cell_angle_gamma                95.229(2)
_cell_formula_units_Z            4
_cell_length_a                   17.1427(4)
_cell_length_b                   22.4342(6)
_cell_length_c                   22.7189(5)
_cell_measurement_reflns_used    25278
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      29.3273
_cell_measurement_theta_min      2.5883
_cell_volume                     7749.6(4)
_computing_cell_refinement
;
'Mon Jul 30 15:38:39 2012'
;
_computing_data_collection
;
'Mon Jul 30 15:38:39 2012'
;
_computing_data_reduction
;
'Mon Jul 30 15:38:39 2012'
;
_computing_molecular_graphics    ORTEP-III
_computing_publication_material  WinGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 15.9821
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\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  0.0562
_diffrn_reflns_av_sigmaI/netI    0.0629
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            86664
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.59
_exptl_absorpt_coefficient_mu    0.063
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.77751
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
'Mon Jul 30 15:38:39 2012'
;
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.068
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2700
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.058
_refine_diff_density_min         -0.688
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     1748
_refine_ls_number_reflns         27261
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.293
_refine_ls_R_factor_all          0.1220
_refine_ls_R_factor_gt           0.0707
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1065P)^2^+4.5508P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1909
_refine_ls_wR_factor_ref         0.2323
_reflns_number_gt                16461
_reflns_number_total             27261
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            om3011432_si_002.cif
_cod_data_source_block           '[(L1Li)2]'
_cod_original_cell_volume        7749.6(3)
_cod_database_code               4089388