Reduction of Terphenyltrifluorosilanes: C−C Insertion Products and Possible Formation of a Disilyne
Pietschnig, Rudolf; West, Robert; Powell, Douglas R.; Organometallics 19 (2000) 2724–; doi:10.1021/om990924z

data_4077701
_publ_section_title
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 Reduction of Terphenyltrifluorosilanes:&#x00A0; C&#x2212;C Insertion
 Products and Possible Formation of a Disilyne
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_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              2724
_journal_paper_doi               10.1021/om990924z
_journal_volume                  19
_journal_year                    2000
_chemical_formula_moiety
'3K+ (C24 H25 F4 Si)- (C24 H25 F5 Si)2- (C6 H6)'
_chemical_formula_sum            'C54 H56 F9 K3 Si2'
_chemical_formula_weight         1049.47
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 97.287(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.7295(10)
_cell_length_b                   26.639(2)
_cell_length_c                   29.299(2)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      3.0
_cell_volume                     10629.3(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 0.913
_diffrn_measured_fraction_theta_max 0.913
_diffrn_measurement_device       'Siemens P4/ccd'
_diffrn_measurement_method       '\f scan frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0595
_diffrn_reflns_av_sigmaI/netI    0.0863
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            41016
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.45
_diffrn_standards_decay_%        -0.090
_diffrn_standards_number         510
_exptl_absorpt_coefficient_mu    0.368
_exptl_absorpt_correction_T_max  0.928
_exptl_absorpt_correction_T_min  0.560
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.312
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4368
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.409
_refine_diff_density_min         -0.482
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.838
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1225
_refine_ls_number_reflns         17508
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.838
_refine_ls_R_factor_all          0.0783
_refine_ls_R_factor_gt           0.0458
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0538P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0981
_refine_ls_wR_factor_ref         0.1048
_reflns_number_gt                10538
_reflns_number_total             17508
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om990924z.cif
_cod_data_source_block           compound_10
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0538P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0538P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
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_cod_database_code               4077701