EPR spectroscopic characterization of persistent germyl-substituted Pb(III)- and Sn(III)-radicals.
Kurzbach, Dennis; Yao, Shenglai; Hinderberger, Dariush; Klinkhammer, Karl W.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 6449–6459; doi:10.1039/c001144d

data_7025478
_publ_section_title
;
 EPR spectroscopic characterization of persistent germyl-substituted
 Pb(III)- and Sn(III)-radicals.
;
_journal_issue                   28
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6449
_journal_page_last               6459
_journal_paper_doi               10.1039/c001144d
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C18 H54 Ge2 Pb Si6'
_chemical_formula_weight         791.52
_chemical_name_common            Bis(tris(trimethylsilyl)germyl)plumbylene
_chemical_name_systematic
;
Bis[tris(trimethylsilyl)germyl]plumbylene
;
_space_group_IT_number           2
_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                110.50(3)
_cell_angle_beta                 100.71(3)
_cell_angle_gamma                100.26(3)
_cell_formula_units_Z            8
_cell_length_a                   16.275(3)
_cell_length_b                   22.189(4)
_cell_length_c                   22.437(5)
_cell_measurement_temperature    293(2)
_cell_volume                     7192(3)
_computing_cell_refinement       XSCANS
_computing_data_collection       XSCANS
_computing_data_reduction        XSCANS
_computing_molecular_graphics    SHELXTL-Plus
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Siemens P4 4-circle-diffractometer'
_diffrn_measurement_method       'Profile fitted 2\q/\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  0.0732
_diffrn_reflns_av_sigmaI/netI    0.1095
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            26217
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.09
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    6.536
_exptl_absorpt_correction_T_max  .897
_exptl_absorpt_correction_T_min  .347
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            green-blue
_exptl_crystal_density_diffrn    1.462
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       coffin-shaped
_exptl_crystal_F_000             3136
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.549
_refine_diff_density_min         -1.594
_refine_diff_density_rms         0.211
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.161
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     994
_refine_ls_number_reflns         25254
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.161
_refine_ls_R_factor_all          0.1666
_refine_ls_R_factor_gt           0.0812
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0800P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1702
_refine_ls_wR_factor_ref         0.2021
_reflns_number_gt                14483
_reflns_number_total             25254
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c001144d.txt
_cod_data_source_block           pbgesi3
_cod_original_cell_volume        7192(2)
_cod_database_code               7025478