Pentavalent vs Trivalent Phosphorus-Bridged Ligands. Synthesis and Structural Characterization of Unexpected Group 4 Metal Complexes Incorporating an Indenylide Unit, [σ:σ-iPr2NP(O)(C9H6)(C2B10H10)]M(NR2)2
Wang, Hong; Chan, Hoi-Shan; Xie, Zuowei; Organometallics 25 (2006) 2569–; doi:10.1021/om060082l

data_4075169
_publ_section_title
;
 Pentavalent vs Trivalent Phosphorus-Bridged Ligands. Synthesis and
 Structural Characterization of Unexpected Group 4 Metal Complexes
 Incorporating an Indenylide Unit,
 [\s:\s-iPr2NP(O)(C9H6)(C2B10H10)]M(NR2)2
;
_journal_issue                   10
_journal_name_full               Organometallics
_journal_page_first              2569
_journal_paper_doi               10.1021/om060082l
_journal_volume                  25
_journal_year                    2006
_chemical_formula_sum            'C23 H49 B10 N4 O P Zr'
_chemical_formula_weight         627.95
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   15.7404(8)
_cell_length_b                   15.3928(7)
_cell_length_c                   27.9697(13)
_cell_measurement_temperature    293(2)
_cell_volume                     6776.7(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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  0.1270
_diffrn_reflns_av_sigmaI/netI    0.0827
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            34657
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.46
_exptl_absorpt_coefficient_mu    0.396
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8578
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.231
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2624
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.219
_refine_diff_density_min         -1.435
_refine_diff_density_rms         0.148
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.096
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         5969
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.096
_refine_ls_R_factor_all          0.1525
_refine_ls_R_factor_gt           0.0909
_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^)+(0.1260P)^2^+52.7799P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2156
_refine_ls_wR_factor_ref         0.2785
_reflns_number_gt                3611
_reflns_number_total             5969
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060082lsi20060126_023303.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               4075169