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_4066191
_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            'C48 H46 N4 Zn'
_chemical_formula_weight         744.26
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_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                 92.151(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   17.206(2)
_cell_length_b                   26.647(3)
_cell_length_c                   18.022(2)
_cell_measurement_temperature    185(2)
_cell_volume                     8257.1(16)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      185(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.0711
_diffrn_reflns_av_sigmaI/netI    0.1034
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            46157
_diffrn_reflns_theta_full        26.04
_diffrn_reflns_theta_max         26.04
_diffrn_reflns_theta_min         1.36
_exptl_absorpt_coefficient_mu    0.632
_exptl_absorpt_correction_T_max  0.9395
_exptl_absorpt_correction_T_min  0.9338
_exptl_crystal_density_diffrn    1.197
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             3136
_exptl_crystal_size_max          0.11
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.426
_refine_diff_density_min         -0.421
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.987
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     971
_refine_ls_number_reflns         16208
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.987
_refine_ls_R_factor_all          0.1538
_refine_ls_R_factor_gt           0.0755
_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^)+(0.1059P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1778
_refine_ls_wR_factor_ref         0.2230
_reflns_number_gt                8170
_reflns_number_total             16208
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100344p_si_001.cif
_cod_data_source_block           complex_6
_cod_original_cell_volume        8256.9(17)
_cod_database_code               4066191