The synthesis and characterisation of some Group 14 compounds containing the 2,4,6-(CF3)3C6H2, 2,6-(CF3)2C6H3 or 2,4-(CF3)2C6H3 ligands
Andrei S. Batsanov; Stéphanie M. Cornet; Keith B. Dillon; Andrés E. Goeta; Amber L. Thompson; Bao Yu Xue; Dalton Trans.  (2003) 2496–2502; doi:10.1039/b302544f

data_7012914
_publ_section_title
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 The synthesis and characterisation of some Group 14 compounds
 containing the 2,4,6-(CF3)3C6H2, 2,6-(CF3)2C6H3 or 2,4-(CF3)2C6H3
 ligands
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_journal_issue                   12
_journal_name_full               'Dalton Trans.'
_journal_page_first              2496
_journal_page_last               2502
_journal_paper_doi               10.1039/b302544f
_journal_year                    2003
_chemical_formula_moiety         'C18 H4 Cl2 F18 Sn'
_chemical_formula_sum            'C18 H4 Cl2 F18 Sn'
_chemical_formula_weight         751.80
_chemical_melting_point          ?
_chemical_name_common
Bis-(2,4,6-tris-trifluoromethyl-phenyl)-dichloro-stannane
_chemical_name_systematic
' Bis-(2,4,6-tris-trifluoromethyl-phenyl)-dichloro-stannane'
_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                 96.635(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.465(1)
_cell_length_b                   30.409(4)
_cell_length_c                   8.724(1)
_cell_measurement_reflns_used    4663
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.56
_cell_measurement_theta_min      3.09
_cell_volume                     2230.6(5)
_computing_cell_refinement       'SMART-NT V5.0 (Bruker, 1998)'
_computing_data_collection       'SMART-NT V5.0 (Bruker, 1998)'
_computing_data_reduction        'SAINT-NT V5.0 (Bruker, 1998)'
_computing_molecular_graphics    'SHELXTL V5.1 (Bruker, 1998)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.923
_diffrn_measured_fraction_theta_max 0.923
_diffrn_measurement_device_type  'Bruker SMART 1K CCD'
_diffrn_measurement_method       '\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  0.0518
_diffrn_reflns_av_sigmaI/netI    0.0592
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -38
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            11861
_diffrn_reflns_theta_full        26.56
_diffrn_reflns_theta_max         26.56
_diffrn_reflns_theta_min         3.09
_exptl_absorpt_coefficient_mu    1.543
_exptl_absorpt_correction_T_max  0.862
_exptl_absorpt_correction_T_min  0.630
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996 & Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.239
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       'thin plate'
_exptl_crystal_F_000             1432
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.652
_refine_diff_density_min         -0.786
_refine_diff_density_rms         0.134
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     345
_refine_ls_number_reflns         4298
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0833
_refine_ls_R_factor_gt           0.0517
_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^)+(0.0541P)^2^+8.9971P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1063
_refine_ls_wR_factor_ref         0.1173
_reflns_number_gt                3130
_reflns_number_total             4298
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b302544f.txt
_cod_data_source_block           (1c)
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7012914