Spectroscopic and Structural Assignment of the Absolute Stereochemistry in a Series of 1,2-Difluorovinyl Organometalloids. The First Crystallographic Characterization and Structural Series of Group 14 Fluorovinyl Compounds
Alan K. Brisdon; Ian R. Crossley; Robin G. Pritchard; John E. Warren; Inorganic Chemistry 41 (2002) 4748–4755; doi:10.1021/ic025593o

data_4318455
_publ_section_title
;
 Spectroscopic and Structural Assignment of the Absolute Stereochemistry
 in a Series of 1,2-Difluorovinyl Organometalloids. The First
 Crystallographic Characterization and Structural Series of Group 14
 Fluorovinyl Compounds
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4748
_journal_page_last               4755
_journal_paper_doi               10.1021/ic025593o
_journal_volume                  41
_journal_year                    2002
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C20 H15 F3 Pb1'
_chemical_formula_structural     'C20 H15 F3 PB1'
_chemical_formula_sum            'C20 H15 F3 Pb'
_chemical_formula_weight         519.51
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.2
_audit_creation_date             2001-09-24T17:47:03-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 94.192(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.6770(5)
_cell_length_b                   10.0367(7)
_cell_length_c                   18.2499(10)
_cell_measurement_reflns_used    37869
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_measurement_wavelength     0.71073
_cell_volume                     1767.78(18)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.902
_diffrn_measured_fraction_theta_max 0.902
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Nonius Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      -0.583821E-1
_diffrn_orient_matrix_UB_12      0.635565E-1
_diffrn_orient_matrix_UB_13      0.265034E-1
_diffrn_orient_matrix_UB_21      -0.774445E-1
_diffrn_orient_matrix_UB_22      -0.122429E-1
_diffrn_orient_matrix_UB_23      -0.387766E-1
_diffrn_orient_matrix_UB_31      -0.364687E-1
_diffrn_orient_matrix_UB_32      -0.757475E-1
_diffrn_orient_matrix_UB_33      0.285052E-1
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0731
_diffrn_reflns_av_unetI/netI     0.0867
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            11516
_diffrn_reflns_reduction_process
;
 Scaled and merged with SORTAV
 R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
 R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397
;
_diffrn_reflns_theta_full        29.11
_diffrn_reflns_theta_max         29.11
_diffrn_reflns_theta_min         3.02
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    9.57
_exptl_absorpt_correction_T_max  0.1478
_exptl_absorpt_correction_T_min  0.1170
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.952
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         2.088
_refine_diff_density_min         -2.884
_refine_diff_density_rms         0.247
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         4288
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.1064
_refine_ls_R_factor_gt           0.0631
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0725P)^2^+15.2976P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1487
_refine_ls_wR_factor_ref         0.1717
_reflns_number_gt                2852
_reflns_number_total             4288
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic025593o_s1_3.cif
_cod_data_source_block           ph3pbpfv
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4318455