1,2-Distanna-closo-dodecaborate‒a rare example of a 1,2-distannylene ligand in transition metal chemistry.
Nickl, Claudia; Eichele, Klaus; Wesemann, Lars; Dalton transactions (Cambridge, England : 2003) 41 (2012) 243–250; doi:10.1039/c1dt11247c

data_7017600
_publ_section_title
;
 1,2-Distanna-closo-dodecaborate--a rare example of a 1,2-distannylene
 ligand in transition metal chemistry.
;
_journal_issue                   1
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              243
_journal_page_last               250
_journal_paper_doi               10.1039/c1dt11247c
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C92 H128 B20 N4 P4 Pt2 Sn4'
_chemical_formula_weight         2495.00
_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
_audit_update_record
;
2011-01-25 # Formatted by publCIF
;
_cell_angle_alpha                69.425(5)
_cell_angle_beta                 89.337(6)
_cell_angle_gamma                67.783(5)
_cell_formula_units_Z            1
_cell_length_a                   12.7985(9)
_cell_length_b                   14.3043(10)
_cell_length_c                   15.5979(11)
_cell_measurement_reflns_used    45926
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.4
_cell_measurement_theta_min      5.7
_cell_volume                     2450.6(3)
_computing_cell_refinement       X-Area
_computing_data_collection       X-Area
_computing_data_reduction        X-Area
_computing_molecular_graphics    'Diamond Version 3.1e'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SHELXS-97
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Stoe IPDS 2T'
_diffrn_measurement_method       'OMEGA 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  0.0480
_diffrn_reflns_av_sigmaI/netI    0.0331
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            35141
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         5.67
_exptl_absorpt_coefficient_mu    3.959
_exptl_absorpt_correction_T_max  0.6299
_exptl_absorpt_correction_T_min  0.4619
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
X-RED 1.31, Data Reduction for STAD4 and IPDS; X-Shape 2.07,
Crystal optimization for absorption correction, Stoe & Cie,
Darmstadt, 2005.
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.691
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.560
_refine_diff_density_min         -1.639
_refine_diff_density_rms         0.103
_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     660
_refine_ls_number_reflns         9903
_refine_ls_number_restraints     346
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0337
_refine_ls_R_factor_gt           0.0285
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0332P)^2^+3.6901P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0652
_refine_ls_wR_factor_ref         0.0673
_reflns_number_gt                8981
_reflns_number_total             9903
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt11247c.txt
_cod_data_source_block           Compound5
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7017600