Synthesis and Structure of Platinum Bis(phospholane) Complexes Pt(diphos*)(R)(X), Catalyst Precursors for Asymmetric Phosphine Alkylation
Guino-o, Marites A.; Zureick, Andrew H.; Blank, Natalia F.; Anderson, Brian J.; Chapp, Timothy W.; Kim, Youngmin; Glueck, David S.; Rheingold, Arnold L.; Organometallics 31 (2012) 6900–; doi:10.1021/om300704e

data_4079381
_publ_section_title
;
 Synthesis and Structure of Platinum Bis(phospholane) Complexes
 Pt(diphos*)(R)(X), Catalyst Precursors for Asymmetric Phosphine
 Alkylation
;
_journal_issue                   19
_journal_name_full               Organometallics
_journal_page_first              6900
_journal_paper_doi               10.1021/om300704e
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C57 H100 Cl8 P6 Pt2'
_chemical_formula_weight         1644.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.7821(15)
_cell_length_b                   21.190(3)
_cell_length_c                   29.560(4)
_cell_measurement_reflns_used    9768
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.32
_cell_measurement_theta_min      2.23
_cell_volume                     6753.7(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0649
_diffrn_reflns_av_sigmaI/netI    0.0409
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            94722
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.33
_diffrn_reflns_theta_min         1.68
_exptl_absorpt_coefficient_mu    4.632
_exptl_absorpt_correction_T_max  0.7082
_exptl_absorpt_correction_T_min  0.3371
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.618
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             3296
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.08
_platon_squeeze_details
; 
 SQUEEZE (PLATON, A.Spek) was used to treat diffuse solvent and anion 
 contributions.Total electron count found = 578/unit cell. Calculated for
 8 Cl- and 12 CH2Cl2(the re'xtal solvent) = 640/unit cell.  The intensive
 properties (density, F(000), etc.) reflect these contributions.    
;
_refine_diff_density_max         1.101
_refine_diff_density_min         -0.799
_refine_diff_density_rms         0.098
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.013(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     561
_refine_ls_number_reflns         12315
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0346
_refine_ls_R_factor_gt           0.0313
_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^)+(0.0300P)^2^+9.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0699
_refine_ls_wR_factor_ref         0.0710
_reflns_number_gt                11454
_reflns_number_total             12315
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300704e_si_002.cif
_cod_data_source_block           glu300
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        6753.8(16)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4079381
_alert_comments_
;
The handling of SQUEEZE data gives rise to A alerts because of the 
atom site/formula discrepancies.  CHECKCIF intends to correct this in the future.
;