Zirconium Complexes of Symmetric and of Chiral Diketiminate Ligands: Synthesis, Crystal Structures, and Reactivities
El-Zoghbi, Ibrahim; Latreche, Saïda; Schaper, Frank; Organometallics 29 (2010) 1551–; doi:10.1021/om900852y

data_4067321
_publ_section_title
;
 Zirconium Complexes of Symmetric and of Chiral Diketiminate Ligands:
 Synthesis, Crystal Structures, and Reactivities
;
_journal_issue                   7
_journal_name_full               Organometallics
_journal_page_first              1551
_journal_paper_doi               10.1021/om900852y
_journal_volume                  29
_journal_year                    2010
_chemical_compound_source        'Synthesized by the authors. See text'
_chemical_formula_moiety         'C34 H58 Cl2 N4 Zr'
_chemical_formula_sum            'C34 H58 Cl2 N4 Zr'
_chemical_formula_weight         684.96
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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
_cell_angle_beta                 91.250(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.2320(8)
_cell_length_b                   9.0276(4)
_cell_length_c                   22.539(1)
_cell_measurement_reflns_used    17018
_cell_measurement_temperature    150
_cell_measurement_theta_max      72.28
_cell_measurement_theta_min      3.92
_cell_volume                     4115.7(3)
_computing_cell_refinement       'SAINT V7.34A (Bruker AXS, 2006b)'
_computing_data_collection       'APEX2 v2.1-0 (Bruker AXS, 2006a)'
_computing_data_reduction        'SAINT V7.34A (Bruker AXS, 2006b)'
_computing_molecular_graphics    'SHELXTL v6.12 (Bruker AXS, 2001)'
_computing_publication_material  'UdMX (Maris, 2004)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 5.5
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker Smart 6000'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  'Montel 200 optics'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.036
_diffrn_reflns_av_sigmaI/netI    0.0208
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            53603
_diffrn_reflns_theta_full        72.26
_diffrn_reflns_theta_max         72.26
_diffrn_reflns_theta_min         3.92
_exptl_absorpt_coefficient_mu    3.554
_exptl_absorpt_correction_T_max  0.7009
_exptl_absorpt_correction_T_min  0.3711
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 2007)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.105
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.10
_platon_squeeze_details
;
Attempts to  model disordered solvent molecules
were unsuccessful. PLATON/SQUEEZE  was used to correct
the data for the presence of the disordered solvent.
A potential solvent volume of 851.4 \%A^3^, 
20.7 % of the total unit-cell volume, was found.
281 electrons per unit cell worth of scattering were located
in the void. The reported structure is based on the 
PLATON/SQUEEZE corrected data. The actual solvent content is
unknown, so several quantities calculated like empirical formula, density, 
absorption coefficient, F(000) etc. may be incorrect.

Ref:  Sluis, P. van der & Spek, A.L. (1990). Acta Cryst. A46, 194-201.
;
_refine_diff_density_max         0.395
_refine_diff_density_min         -0.412
_refine_diff_density_rms         0.139
_refine_ls_extinction_coef       0.00110(7)
_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   1.113
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     189
_refine_ls_number_reflns         4013
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.113
_refine_ls_R_factor_all          0.0344
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0657P)^2^+2.3499P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0976
_refine_ls_wR_factor_ref         0.0981
_reflns_number_gt                3869
_reflns_number_total             4013
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om900852y_si_001.cif
_cod_data_source_block           saida3
_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.

'_geom_bond_publ_flag' value 'Y' changed to 'y'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (26
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (44
times).

'_geom_torsion_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (56 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4067321