Platinum-Catalyzed Asymmetric Alkylation of Bis(isitylphosphino)ethane: Stereoselectivity Reversal in Successive Formation of Two P−C Bonds
Chapp, Timothy W.; Glueck, David S.; Golen, James A.; Moore, Curtis E.; Rheingold, Arnold L.; Organometallics 29 (2010) 378–; doi:10.1021/om900800z

data_4063439
_publ_section_title
;
 Platinum-Catalyzed Asymmetric Alkylation of Bis(isitylphosphino)ethane:
 Stereoselectivity Reversal in Successive Formation of Two P&#x2212;C
 Bonds
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_journal_issue                   2
_journal_name_full               Organometallics
_journal_page_first              378
_journal_paper_doi               10.1021/om900800z
_journal_volume                  29
_journal_year                    2010
_chemical_formula_sum            'C54 H68 P2'
_chemical_formula_weight         779.02
_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                64.4770(10)
_cell_angle_beta                 80.3910(10)
_cell_angle_gamma                73.5900(10)
_cell_formula_units_Z            1
_cell_length_a                   9.5176(8)
_cell_length_b                   10.9546(9)
_cell_length_c                   12.5468(11)
_cell_measurement_reflns_used    9977
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.48
_cell_measurement_theta_min      2.69
_cell_volume                     1130.86(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.992
_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  0.0197
_diffrn_reflns_av_sigmaI/netI    0.0195
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            13914
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.48
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    0.131
_exptl_absorpt_correction_T_max  0.9531
_exptl_absorpt_correction_T_min  0.9470
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.144
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             422
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.37
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.245
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         4175
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0370
_refine_ls_R_factor_gt           0.0341
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0450P)^2^+0.5800P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0888
_refine_ls_wR_factor_ref         0.0915
_reflns_number_gt                3846
_reflns_number_total             4175
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900800z_si_002.cif
_cod_data_source_block           glu284
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1673 2011-04-08 12:14:43Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4063439