Novel Pt(II) Mono- and Biscarbene Complexes: Synthesis, Structural Characterization and Application in Hydrosilylation Catalysis
Hu, Jian Jin; Li, Fuwei; Hor, T. S. Andy; Organometallics 28 (2009) 1212–; doi:10.1021/om800978j

data_4068608
_publ_section_title
;
 Novel Pt(II) Mono- and Biscarbene Complexes: Synthesis, Structural
 Characterization and Application in Hydrosilylation Catalysis
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              1212
_journal_paper_doi               10.1021/om800978j
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C23 H23 Br2 N5 Pt'
_chemical_formula_weight         724.37
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 90.656(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.7655(7)
_cell_length_b                   8.6377(5)
_cell_length_c                   25.2325(15)
_cell_measurement_reflns_used    2137
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      24.43
_cell_measurement_theta_min      2.49
_cell_volume                     2564.1(3)
_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      223(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0654
_diffrn_reflns_av_sigmaI/netI    0.0779
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            17473
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.61
_exptl_absorpt_coefficient_mu    8.607
_exptl_absorpt_correction_T_max  0.597
_exptl_absorpt_correction_T_min  0.060
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.876
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.649
_refine_diff_density_min         -0.856
_refine_diff_density_rms         0.223
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         5848
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0823
_refine_ls_R_factor_gt           0.0512
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0637P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1176
_refine_ls_wR_factor_ref         0.1297
_reflns_number_gt                4078
_reflns_number_total             5848
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800978j_si_001.cif
_cod_data_source_block           compound_5
_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 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_hydrogen_treatment' value 'contr' was replaced with the
value 'constr' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4068608