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_4063437
_publ_section_title
;
 Platinum-Catalyzed Asymmetric Alkylation of Bis(isitylphosphino)ethane:
 Stereoselectivity Reversal in Successive Formation of Two P&#x2212;C
 Bonds
;
_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            'C32 H52 P2'
_chemical_formula_weight         498.68
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 107.001(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   34.140(5)
_cell_length_b                   5.9658(9)
_cell_length_c                   16.029(2)
_cell_measurement_reflns_used    4895
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.17
_cell_measurement_theta_min      2.50
_cell_volume                     3122.0(8)
_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      296(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.967
_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  0.0367
_diffrn_reflns_av_sigmaI/netI    0.0280
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13615
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.30
_diffrn_reflns_theta_min         1.25
_exptl_absorpt_coefficient_mu    0.156
_exptl_absorpt_correction_T_max  0.9459
_exptl_absorpt_correction_T_min  0.9330
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.061
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.422
_refine_diff_density_min         -0.396
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     158
_refine_ls_number_reflns         3061
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.0604
_refine_ls_R_factor_gt           0.0510
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0700P)^2^+3.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1407
_refine_ls_wR_factor_ref         0.1486
_reflns_number_gt                2577
_reflns_number_total             3061
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900800z_si_002.cif
_cod_data_source_block           glu274
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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      C2/c
_cod_database_code               4063437