Bis(imino)aryl NCN Pincer Aluminum and Zinc Complexes: Synthesis, Characterization, and Catalysis onl-Lactide Polymerization
Liu, Zhizhou; Gao, Wei; Zhang, Jingshun; Cui, Dongmei; Wu, Qiaolin; Mu, Ying; Organometallics 29 (2010) 5783–; doi:10.1021/om100344p

data_4066189
_publ_section_title
;
 Bis(imino)aryl NCN Pincer Aluminum and Zinc Complexes: Synthesis,
 Characterization, and Catalysis onl-Lactide Polymerization
;
_journal_issue                   22
_journal_name_full               Organometallics
_journal_page_first              5783
_journal_paper_doi               10.1021/om100344p
_journal_volume                  29
_journal_year                    2010
_chemical_formula_sum            'C32 H41 Al N2'
_chemical_formula_weight         480.65
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.4690(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.7523(4)
_cell_length_b                   15.8948(8)
_cell_length_c                   21.0373(10)
_cell_measurement_temperature    296(2)
_cell_volume                     2921.3(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scan'
_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  0.0348
_diffrn_reflns_av_sigmaI/netI    0.0424
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            15979
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.61
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9901
_exptl_absorpt_correction_T_min  0.9892
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.093
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         5726
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0763
_refine_ls_R_factor_gt           0.0453
_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^)+(0.0555P)^2^+0.4879P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1104
_refine_ls_wR_factor_ref         0.1281
_reflns_number_gt                3822
_reflns_number_total             5726
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100344p_si_001.cif
_cod_data_source_block           complex_3
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4066189