(η(4)-Butadiene)Sn(0) Complexes: A New Approach for Zero-Valent p-Block Elements Utilizing a Butadiene as a 4π-Electron Donor.
Kuwabara, Takuya; Nakada, Marisa; Hamada, Jumpei; Guo, Jing Dong; Nagase, Shigeru; Saito, Masaichi; Journal of the American Chemical Society 138 (2016) 11378–11382; doi:10.1021/jacs.6b07304

data_4130836
_publ_section_title
;
 (\h(4)-Butadiene)Sn(0) Complexes: A New Approach for Zero-Valent p-Block
 Elements Utilizing a Butadiene as a 4\p-Electron Donor.
;
_journal_issue                   35
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11378
_journal_page_last               11382
_journal_paper_doi               10.1021/jacs.6b07304
_journal_volume                  138
_journal_year                    2016
_chemical_formula_moiety         'C38 H50 Hf Si2 Sn, C4 H8 O'
_chemical_formula_sum            'C42 H58 Hf O Si2 Sn'
_chemical_formula_weight         932.26
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.0406(4)
_cell_length_b                   15.0059(7)
_cell_length_c                   33.2314(16)
_cell_measurement_reflns_used    6470
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.60
_cell_measurement_theta_min      2.45
_cell_volume                     4009.6(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SMART'
_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      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0516
_diffrn_reflns_av_sigmaI/netI    0.0645
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            27521
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    3.300
_exptl_absorpt_correction_T_max  0.848
_exptl_absorpt_correction_T_min  0.820
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS; Sheldrick 1996'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.544
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1872
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.463
_refine_diff_density_min         -0.596
_refine_diff_density_rms         0.125
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.014(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     424
_refine_ls_number_reflns         8764
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.0370
_refine_ls_R_factor_gt           0.0331
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0025P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0623
_refine_ls_wR_factor_ref         0.0637
_reflns_number_gt                8142
_reflns_number_total             8764
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja6b07304_si_002.cif
_cod_data_source_block           masa771
_cod_original_formula_sum        'C42 H58 Hf O Si2 Sn '
_cod_database_code               4130836