P2Addition to Terminal Phosphide M\τbP Triple Bonds: A Rational Synthesis of cyclo-P3 Complexes
Nicholas A. Piro; Christopher C. Cummins; Journal of the American Chemical Society 130 (2008) 9524–9535; doi:10.1021/ja802080m

data_4108077
_publ_contact_author_address
;Department of Chemistry
Massachusetts Institute of Technology
77 Massachusetts Avenue, Room 6-435
Cambridge, MA  02139-4307 (USA)
;
_publ_contact_author_email       ccummins@mit.edu
_publ_contact_author_fax         617-258-5700
_publ_contact_author_name        'Christopher C. Cummins'
_publ_contact_author_phone       617-253-5332
_publ_section_title
;
 P2Addition to Terminal Phosphide M\\tbP Triple Bonds: A Rational
 Synthesis of cyclo-P3 Complexes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9524
_journal_page_last               9535
_journal_paper_doi               10.1021/ja802080m
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C68 H93 N3 Nb O6 P3 Si2 Sn W'
_chemical_formula_weight         1592.99
_chemical_name_common            'Ph3Sn{(CO)5W}P3Nb(N[Np]Ar)3 O(SiMe3)2'
_chemical_name_systematic
;

 ?

;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                75.7190(10)
_cell_angle_beta                 79.1700(10)
_cell_angle_gamma                66.6120(10)
_cell_formula_units_Z            2
_cell_length_a                   12.1488(8)
_cell_length_b                   13.9473(9)
_cell_length_c                   24.4655(15)
_cell_measurement_reflns_used    9894
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.49
_cell_measurement_theta_min      2.25
_cell_volume                     3668.4(4)
_computing_cell_refinement       'SAINT 7 (Bruker-AXS, 2005)'
_computing_data_collection       'SMART 5 (Bruker-AXS, 2003)'
_computing_data_reduction        'SAINT 7 (Bruker-AXS, 2005)'
_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      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0613
_diffrn_reflns_av_sigmaI/netI    0.0551
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            84933
_diffrn_reflns_theta_full        28.70
_diffrn_reflns_theta_max         28.70
_diffrn_reflns_theta_min         1.62
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.202
_exptl_absorpt_correction_T_max  0.8265
_exptl_absorpt_correction_T_min  0.6798
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2005)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.442
_exptl_crystal_description       block
_exptl_crystal_F_000             1616
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.080
_refine_diff_density_min         -0.814
_refine_diff_density_rms         0.115
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     791
_refine_ls_number_reflns         18922
_refine_ls_number_restraints     72
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0591
_refine_ls_R_factor_gt           0.0359
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0222P)^2^+3.2137P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0662
_refine_ls_wR_factor_ref         0.0746
_reflns_number_gt                14459
_reflns_number_total             18922
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja802080m-file004.cif
_cod_data_source_block           07136
_cod_database_code               4108077