Ti and Zr bidentate bis-phosphinimide complexes
Hollink, Emily; Stewart, Jeffrey C.; Wei, Pingrong; Stephan, Douglas W.; Dalton Transactions  (2003) 3968–; doi:10.1039/b308114a

data_7013441
_publ_section_title
;
 Ti and Zr bidentate bis-phosphinimide complexes
;
_journal_issue                   20
_journal_name_full               'Dalton Transactions'
_journal_page_first              3968
_journal_paper_doi               10.1039/b308114a
_journal_year                    2003
_chemical_formula_sum            'C24 H44 P2'
_chemical_formula_weight         394.53
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 93.013(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   25.554(13)
_cell_length_b                   8.449(5)
_cell_length_c                   12.046(6)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.0
_cell_volume                     2597(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.0183
_diffrn_reflns_av_sigmaI/netI    0.0187
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            5318
_diffrn_reflns_theta_full        23.24
_diffrn_reflns_theta_max         23.24
_diffrn_reflns_theta_min         3.03
_exptl_absorpt_coefficient_mu    0.173
_exptl_absorpt_correction_T_max  0.488965
_exptl_absorpt_correction_T_min  0.344755
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_density_diffrn    1.009
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.179
_refine_diff_density_min         -0.178
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.2(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         2921
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0543
_refine_ls_R_factor_gt           0.0408
_refine_ls_shift/su_max          1.707
_refine_ls_shift/su_mean         0.362
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0874P)^2^+0.2734P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1159
_refine_ls_wR_factor_ref         0.1275
_reflns_number_gt                2266
_reflns_number_total             2921
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b308114a.txt
_cod_data_source_block           m-C6H4(CH2P(t-Bu2))2
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7013441