Chemistry of a Novel Family of Tridentate Alkoxy Tin(II) Clusters
Timothy J. Boyle; Judith M. Segall; Todd M. Alam; Mark A. Rodriguez; Jessica M. Santana; Journal of the American Chemical Society 124 (2002) 6904–6913; doi:10.1021/ja0202309

data_4114877
_publ_section_title
;
 Chemistry of a Novel Family of Tridentate Alkoxy Tin(II) Clusters
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6904
_journal_page_last               6913
_journal_paper_doi               10.1021/ja0202309
_journal_volume                  124
_journal_year                    2002
_chemical_formula_sum            'C22 H54 N2 O6 Si4 Sn4'
_chemical_formula_weight         1029.79
_chemical_name_common            Sn4(THME)2[N(Si2)(CH3)6]2
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 101.050(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.834(3)
_cell_length_b                   17.680(7)
_cell_length_c                   15.981(6)
_cell_measurement_temperature    168(2)
_cell_volume                     1895.1(13)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      168(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0348
_diffrn_reflns_av_sigmaI/netI    0.0584
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8983
_diffrn_reflns_theta_full        23.27
_diffrn_reflns_theta_max         23.27
_diffrn_reflns_theta_min         1.30
_exptl_absorpt_coefficient_mu    2.765
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.805
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.40
_exptl_crystal_size_min          0.2
_refine_diff_density_max         2.776
_refine_diff_density_min         -0.498
_refine_diff_density_rms         0.158
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     358
_refine_ls_number_reflns         5325
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0454
_refine_ls_R_factor_gt           0.0413
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0622P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0975
_refine_ls_wR_factor_ref         0.1016
_reflns_number_gt                4953
_reflns_number_total             5325
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0202309_06.cif
_cod_data_source_block           jude025s_structure_2_amide
_cod_database_code               4114877