Synthesis and Characterization of Group 4 Amidinate Amide Complexes M[CyNC(Me)NCy]2(NR2)2(R = Me, M = Ti, Zr, Hf; R = Et, M = Zr)
Sun, Jia-Feng; Chen, Shu-Jian; Duan, Yuxi; Li, Yi-Zhi; Chen, Xue-Tai; Xue, Zi-Ling; Organometallics 28 (2009) 3088–; doi:10.1021/om900162b

data_4069376
_publ_section_title
;
 Synthesis and Characterization of Group 4 Amidinate Amide Complexes
 M[CyNC(Me)NCy]2(NR2)2(R = Me, M = Ti, Zr, Hf; R = Et, M = Zr)
;
_journal_issue                   10
_journal_name_full               Organometallics
_journal_page_first              3088
_journal_paper_doi               10.1021/om900162b
_journal_volume                  28
_journal_year                    2009
_chemical_formula_moiety         'C32 H62 N6 Zr'
_chemical_formula_sum            'C32 H62 N6 Zr'
_chemical_formula_weight         622.10
_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                 102.81
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.462(7)
_cell_length_b                   32.34(2)
_cell_length_c                   10.462(7)
_cell_measurement_reflns_used    8907
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.00
_cell_measurement_theta_min      2.25
_cell_volume                     3452(4)
_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      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0830
_diffrn_reflns_av_sigmaI/netI    0.0439
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       39
_diffrn_reflns_limit_k_min       -39
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            32788
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.26
_exptl_absorpt_coefficient_mu    0.347
_exptl_absorpt_correction_T_max  0.93
_exptl_absorpt_correction_T_min  0.88
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.197
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       diamond
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.300
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.327
_refine_diff_density_min         -0.586
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     358
_refine_ls_number_reflns         6777
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0390
_refine_ls_R_factor_gt           0.0313
_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^)+(0.0370P)^2^+0.9972P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0783
_refine_ls_wR_factor_ref         0.0804
_reflns_number_gt                5734
_reflns_number_total             6777
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900162b_si_003.cif
_cod_data_source_block           sjf
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4069376