Terphenyl Ligand Stabilized Lead(II) Derivatives: Steric Effects and Lead-Lead Bonding in Diplumbenes
Shirley Hino; Marilyn Olmstead; Andrew D. Phillips; Robert J. Wright; Philip P. Power; Inorganic Chemistry 43 (2004) 7346–7352; doi:10.1021/ic049174y

data_4312000
_publ_section_title
;
 Terphenyl Ligand Stabilized Lead(II) Derivatives: Steric Effects and
 Lead-Lead Bonding in Diplumbenes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7346
_journal_page_last               7352
_journal_paper_doi               10.1021/ic049174y
_journal_volume                  43
_journal_year                    2004
_chemical_formula_moiety         'C40 H50 Pb, 0.25(C6 H14)'
_chemical_formula_sum            'C41.5 H53.5 Pb'
_chemical_formula_weight         759.53
_chemical_name_common            Ar'*Pb(p-t-BuPhenyl)0.25n-hexane
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                105.856(3)
_cell_angle_beta                 106.890(3)
_cell_angle_gamma                101.503(3)
_cell_formula_units_Z            4
_cell_length_a                   13.477(3)
_cell_length_b                   16.148(3)
_cell_length_c                   19.017(4)
_cell_measurement_reflns_used    7962
_cell_measurement_temperature    86(2)
_cell_measurement_theta_max      25.7
_cell_measurement_theta_min      2.2
_cell_volume                     3630.5(13)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'Bruker BIS (Bruke, 2004)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL 5.1 (Sheldrick,1994)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      86(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SMART APEXII'
_diffrn_measurement_method       \w
_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  0.0559
_diffrn_reflns_av_sigmaI/netI    0.0752
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            33965
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         1.80
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.673
_exptl_absorpt_correction_T_max  0.912
_exptl_absorpt_correction_T_min  0.203
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.10 (Bruker, 2003)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.389
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.816
_refine_diff_density_min         -2.515
_refine_diff_density_rms         0.148
_refine_ls_extinction_coef       0.00119(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.996
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     768
_refine_ls_number_reflns         13279
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.996
_refine_ls_R_factor_all          0.0627
_refine_ls_R_factor_gt           0.0385
_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^)+(0.0476P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0901
_refine_ls_wR_factor_ref         0.0997
_reflns_number_gt                9825
_reflns_number_total             13279
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ic049174ysi20040624_074118_4.cif
_cod_data_source_block           mn1625
_cod_original_cell_volume        3630.4(13)
_cod_original_formula_sum        'C41.50 H53.50 Pb'
_cod_database_code               4312000