Synthesis and M-Cγ Hemilability of Group 2 Bis(phosphinimino)methanides
Shabana A. Ahmed; Michael S. Hill; Peter B. Hitchcock; Organometallics 25 (2006) 394–402; doi:10.1021/om050811h

data_4063234
_publ_section_title
;
 Synthesis and M-C\g Hemilability of Group 2
 Bis(phosphinimino)methanides
;
_journal_issue                   2
_journal_name_full               Organometallics
_journal_page_first              394
_journal_page_last               402
_journal_paper_doi               10.1021/om050811h
_journal_volume                  25
_journal_year                    2006
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C86 H86 Ba1 N4 P4, 0.5(C7 H8)'
_chemical_formula_sum            'C89.5 H90 Ba N4 P4'
_chemical_formula_weight         1482.88
_chemical_name_common
;
[Ba(MesNPPh2CHPPh2NMes)2].1/2(toluene)
;
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.2
_audit_creation_date             2003-04-02T16:04:55-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                100.566(1)
_cell_angle_beta                 92.303(1)
_cell_angle_gamma                118.149(1)
_cell_formula_units_Z            2
_cell_length_a                   13.0294(2)
_cell_length_b                   13.3312(2)
_cell_length_c                   25.5773(4)
_cell_measurement_reflns_used    131083
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      3.705
_cell_measurement_wavelength     0.71073
_cell_volume                     3809.47(10)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0629
_diffrn_reflns_av_unetI/netI     0.0803
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            45010
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         3.72
_exptl_absorpt_coefficient_mu    0.654
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.8719
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        [c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1542
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.463
_refine_diff_density_min         -0.808
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     927
_refine_ls_number_reflns         17111
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0803
_refine_ls_R_factor_gt           0.0471
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0320P)^2^+2.4026P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0884
_refine_ls_wR_factor_ref         0.0979
_reflns_number_gt                12563
_reflns_number_total             17111
_reflns_threshold_expression     >2sigma(I)
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C89.5 H90 Ba1 N4 P4'
_cod_database_code               4063234