Addition of Lappert's Stannylenes to Carbodiimides, Providing a New Class of Tin(II) Guanidinates
Chlupatý, Tomáš; Padělková, Zdeňka; DeProft, Frank; Willem, Rudolph; Růžička, Aleš; Organometallics 31 (2012) 2203–; doi:10.1021/om201118m

data_4076369
_publ_section_title
;
 Addition of Lappert's Stannylenes to Carbodiimides, Providing a New Class
 of Tin(II) Guanidinates
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              2203
_journal_paper_doi               10.1021/om201118m
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C42 H64 N6 Si4 Sn, C6 H14'
_chemical_formula_sum            'C48 H78 N6 Si4 Sn'
_chemical_formula_weight         970.21
_chemical_name_systematic
; 
 ? 
;
_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
_cell_angle_beta                 95.929(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.4960(9)
_cell_length_b                   27.177(3)
_cell_length_c                   15.6270(12)
_cell_measurement_reflns_used    56399
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1
_cell_volume                     5278.6(8)
_computing_cell_refinement       'COLLECT and DENZO'
_computing_data_collection
'COLLECT (Hooft, 1998) and DENZO (Otwinowski & Minor, 1997)'
_computing_data_reduction        'COLLECT and DENZO'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker Nonius KappaCCD area detector'
_diffrn_measurement_method       '\f and \w scans to fill the Ewald sphere'
_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  0.0612
_diffrn_reflns_av_sigmaI/netI    0.0461
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            56294
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.64
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.611
_exptl_absorpt_correction_T_max  0.949
_exptl_absorpt_correction_T_min  0.902
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
Gaussian integration (Coppens, 1970)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.221
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2056
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.531
_refine_diff_density_min         -0.440
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.126
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     532
_refine_ls_number_reflns         12078
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.126
_refine_ls_R_factor_all          0.0679
_refine_ls_R_factor_gt           0.0423
_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^)+(0.0183P)^2^+7.1887P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0736
_refine_ls_wR_factor_ref         0.0840
_reflns_number_gt                9305
_reflns_number_total             12078
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om201118m_si_002.cif
_cod_data_source_block           14x
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4076369