Dinuclear Zinc Complexes Based on Parallel β-Diiminato Binding Sites: Syntheses, Structures, and Properties as CO2/Epoxide Copolymerization Catalysts
Pilz, Maurice Frederic; Limberg, Christian; Lazarov, Boyan B.; Hultzsch, Kai C.; Ziemer, Burkhard; Organometallics 26 (2007) 3668–; doi:10.1021/om070221e

data_4073291
_publ_section_title
;
 Dinuclear Zinc Complexes Based on Parallel \b-Diiminato Binding
 Sites:&#x00A0; Syntheses, Structures, and Properties as CO2/Epoxide
 Copolymerization Catalysts
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              3668
_journal_paper_doi               10.1021/om070221e
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C73 H86 F8 N4 O5 Zn2'
_chemical_formula_weight         1382.20
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 91.216(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.9550(18)
_cell_length_b                   18.698(3)
_cell_length_c                   22.696(2)
_cell_measurement_temperature    180(2)
_cell_volume                     6769.3(15)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.971
_diffrn_measured_fraction_theta_max 0.971
_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  0.0496
_diffrn_reflns_av_sigmaI/netI    0.0590
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            44805
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    0.784
_exptl_absorpt_correction_T_max  0.7656
_exptl_absorpt_correction_T_min  0.6953
_exptl_crystal_density_diffrn    1.356
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2896
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.44
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.732
_refine_diff_density_min         -0.623
_refine_diff_density_rms         0.068
_refine_ls_extinction_coef       0.00059(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.923
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     840
_refine_ls_number_reflns         11915
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      0.922
_refine_ls_R_factor_all          0.0681
_refine_ls_R_factor_gt           0.0433
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0702P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1039
_refine_ls_wR_factor_ref         0.1118
_reflns_number_gt                8213
_reflns_number_total             11915
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om070221e-file003.cif
_cod_data_source_block           d:\x-data\pilz38
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        6769.5(16)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4073291