Zirconium Alkyl Complexes Supported by Ureate Ligands: Synthesis, Characterization, and Precursors to Metal−Element Multiple Bonds†
Leitch, David C.; Schafer, Laurel L.; Organometallics 29 (2010) 5162–; doi:10.1021/om100381d

data_4066284
_publ_section_title
;
 Zirconium Alkyl Complexes Supported by Ureate Ligands: Synthesis,
 Characterization, and Precursors to Metal&#x2212;Element Multiple
 Bonds&#x2020;
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              5162
_journal_paper_doi               10.1021/om100381d
_journal_volume                  29
_journal_year                    2010
_chemical_formula_moiety         'C42 H54 N4 O2 Zr'
_chemical_formula_sum            'C42 H54 N4 O2 Zr'
_chemical_formula_weight         738.11
_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                 101.173(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.7720(8)
_cell_length_b                   15.1692(13)
_cell_length_c                   22.6428(18)
_cell_measurement_reflns_used    9854
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.073
_cell_measurement_theta_min      2.264
_cell_volume                     3966.7(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0343
_diffrn_reflns_av_sigmaI/netI    0.0337
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            45994
_diffrn_reflns_theta_full        30.11
_diffrn_reflns_theta_max         30.11
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    0.316
_exptl_absorpt_correction_T_max  0.8817
_exptl_absorpt_correction_T_min  0.7770
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.236
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1560
_exptl_crystal_size_max          0.8
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.431
_refine_diff_density_min         -0.414
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     452
_refine_ls_number_reflns         11674
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0556
_refine_ls_R_factor_gt           0.0340
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0357P)^2^+1.8909P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0773
_refine_ls_wR_factor_ref         0.0890
_reflns_number_gt                8888
_reflns_number_total             11674
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100381d_si_001.cif
_cod_data_source_block           ls167_0m
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4066284