Variable coordination of a chiral diphosphine containing an amidinium/NHC group within its backbone: μ-P,P', κ2-P,P' and κ3-P,C,P' coordination modes.
Newman, Paul D.; Cavell, Kingsley J.; Kariuki, Benson M.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 12395–12407; doi:10.1039/c2dt31475d

data_7020411
_publ_section_title
;
 Variable coordination of a chiral diphosphine containing an amidinium/NHC
 group within its backbone: \m-P,P', \k2-P,P' and \k3-P,C,P' coordination
 modes.
;
_journal_issue                   40
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12395
_journal_page_last               12407
_journal_paper_doi               10.1039/c2dt31475d
_journal_volume                  41
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_sum            'C51 H53 Cl2 F6 N4 P3 Pt'
_chemical_formula_weight         1194.87
_chemical_name_systematic
;
?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 93.809(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.9538(5)
_cell_length_b                   14.4075(4)
_cell_length_c                   29.2856(14)
_cell_measurement_reflns_used    11357
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      37.54
_cell_measurement_theta_min      1.80
_cell_volume                     5032.6(3)
_computing_cell_refinement       DENZO/SCALEPACK
_computing_data_collection       'cOLLECT,Nonius BV, 1997-2001'
_computing_data_reduction        DENZO/SCALEPACK
_computing_structure_refinement  SHELXL-97
_computing_structure_solution    SHELXs-97
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.95
_diffrn_measured_fraction_theta_max 0.95
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'CCD 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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.1757
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            19515
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    3.052
_exptl_absorpt_correction_T_max  0.8877
_exptl_absorpt_correction_T_min  0.4613
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   Denzo/scalepack
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.577
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2392
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.514
_refine_diff_density_min         -1.057
_refine_diff_density_rms         0.174
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.049(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     1217
_refine_ls_number_reflns         19515
_refine_ls_number_restraints     173
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.1889
_refine_ls_R_factor_gt           0.0976
_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^)+(0.0338P)^2^+83.4269P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1597
_refine_ls_wR_factor_ref         0.1947
_reflns_number_gt                11357
_reflns_number_total             19515
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31475d.txt
_cod_data_source_block           kjc1135
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_sg_symbol_H-M      P21
_cod_database_code               7020411