Terminal phosphinidene formation via tantalaziridine complexes.
Rankin, Matthew A.; Cummins, Christopher C.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 9615–9618; doi:10.1039/c2dt31082a

data_7019921
_publ_section_title
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 Terminal phosphinidene formation via tantalaziridine complexes.
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_journal_issue                   32
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9615
_journal_page_last               9618
_journal_paper_doi               10.1039/c2dt31082a
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C78 H124 N6 Ta2'
_chemical_formula_weight         1507.70
_chemical_name_common            (HTa(N(CH2tBu)Ar)3)2
_chemical_name_systematic
;
?
;
_space_group_IT_number           148
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   12.9616(9)
_cell_length_b                   12.9616(9)
_cell_length_c                   38.840(3)
_cell_measurement_reflns_used    9689
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.30
_cell_measurement_theta_min      2.77
_cell_volume                     5651.0(7)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2008)'
_computing_data_collection       'APEX2 3.0 (Bruker-AXS, 2008)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Smart APEX CCD'
_diffrn_measurement_method       'omega and phi 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  0.0375
_diffrn_reflns_av_sigmaI/netI    0.0174
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       54
_diffrn_reflns_limit_l_min       -54
_diffrn_reflns_number            36616
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         1.57
_exptl_absorpt_coefficient_mu    2.946
_exptl_absorpt_correction_T_max  0.7571
_exptl_absorpt_correction_T_min  0.3507
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.329
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       hexagonal
_exptl_crystal_F_000             2340
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.277
_refine_diff_density_min         -0.953
_refine_diff_density_rms         0.090
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3690
_refine_ls_number_restraints     384
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0236
_refine_ls_R_factor_gt           0.0215
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0208P)^2^+24.0347P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0515
_refine_ls_wR_factor_ref         0.0529
_reflns_number_gt                3490
_reflns_number_total             3690
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31082a.txt
_cod_data_source_block           09140hb_e
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
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_cod_original_sg_symbol_H-M      R-3
_cod_database_code               7019921