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_4066280
_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         'C47 H59 N5 O2 Zr'
_chemical_formula_sum            'C47 H59 N5 O2 Zr'
_chemical_formula_weight         817.21
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           20
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2c 2'
_symmetry_space_group_name_H-M   'C 2 2 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.151(2)
_cell_length_b                   18.936(3)
_cell_length_c                   15.576(3)
_cell_measurement_reflns_used    7914
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      35.4
_cell_measurement_theta_min      1.7
_cell_volume                     4468.7(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.823
_diffrn_measured_fraction_theta_max 0.823
_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  0.0144
_diffrn_reflns_av_sigmaI/netI    0.0223
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            16782
_diffrn_reflns_theta_full        35.36
_diffrn_reflns_theta_max         35.36
_diffrn_reflns_theta_min         1.72
_exptl_absorpt_coefficient_mu    0.287
_exptl_absorpt_correction_T_max  0.9717
_exptl_absorpt_correction_T_min  0.8429
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.215
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.498
_refine_diff_density_min         -0.430
_refine_diff_density_rms         0.048
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.091
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         7914
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.091
_refine_ls_R_factor_all          0.0321
_refine_ls_R_factor_gt           0.0257
_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^)+(0.0306P)^2^+1.9161P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0645
_refine_ls_wR_factor_ref         0.0697
_reflns_number_gt                7172
_reflns_number_total             7914
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100381d_si_001.cif
_cod_data_source_block           ls122_0m
_cod_original_cell_volume        4468.8(12)
_cod_database_code               4066280