Hydrogen abstraction from organotin di- and trihydrides by N-heterocyclic carbenes: a new method for the preparation of NHC adducts to tin(ii) species and observation of an isomer of a hexastannabenzene derivative [R6Sn6]
Sindlinger, Christian P.; Wesemann, Lars; Chemical Science 5 (2014) 2739–; doi:10.1039/c4sc00365a

data_1515883
_publ_section_title
;
 Hydrogen abstraction from organotin di- and trihydrides by N-heterocyclic
 carbenes: a new method for the preparation of NHC adducts to tin(ii)
 species and observation of an isomer of a hexastannabenzene derivative
 [R6Sn6]
;
_journal_issue                   7
_journal_name_full               'Chemical Science'
_journal_page_first              2739
_journal_paper_doi               10.1039/c4sc00365a
_journal_volume                  5
_journal_year                    2014
_chemical_formula_sum            'C52 H74 N2 Sn'
_chemical_formula_weight         845.82
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 105.7610(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.7423(3)
_cell_length_b                   19.1733(5)
_cell_length_c                   18.7204(5)
_cell_measurement_reflns_used    9606
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      27.1544
_cell_measurement_theta_min      2.3924
_cell_volume                     4747.1(2)
_computing_cell_refinement       'APEX2 v2011.8-0 (Bruker AXS)'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'SAINT V7.68A (Bruker AXS, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0240
_diffrn_reflns_av_sigmaI/netI    0.0172
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            56357
_diffrn_reflns_theta_full        27.18
_diffrn_reflns_theta_max         27.18
_diffrn_reflns_theta_min         1.87
_diffrn_source_type              'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.572
_exptl_absorpt_correction_T_max  0.92
_exptl_absorpt_correction_T_min  0.84
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_density_diffrn    1.183
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1800
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.150
_refine_diff_density_max         1.227
_refine_diff_density_min         -0.972
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     517
_refine_ls_number_reflns         10545
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0312
_refine_ls_R_factor_gt           0.0256
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0213P)^2^+4.0976P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0578
_refine_ls_wR_factor_ref         0.0605
_reflns_number_gt                9398
_reflns_number_total             10545
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4sc00365a2.cif
_cod_data_source_block           I
_cod_depositor_comments
'Adding full bibliography for 1515882--1515884.cif.'
_cod_database_code               1515883