Synthesis of mono- and geminal dimetalated carbanions of bis(phenylsulfonyl)methane using alkali metal bases and structural comparisons with lithiated bis(phenylsulfonyl)imides.
MacDougall, Dugald J.; Kennedy, Alan R.; Noll, Bruce C.; Henderson, Kenneth W.; Dalton transactions (Cambridge, England : 2003)  (2005) 2084–2091; doi:10.1039/b504730g

data_7008581
_publ_section_title
;
 Synthesis of mono- and geminal dimetalated carbanions of
 bis(phenylsulfonyl)methane using alkali metal bases and structural
 comparisons with lithiated bis(phenylsulfonyl)imides.
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2084
_journal_page_last               2091
_journal_paper_doi               10.1039/b504730g
_journal_year                    2005
_chemical_compound_source        Synthesized
_chemical_formula_moiety         'C32 H36 Li2 N2 O10 S4'
_chemical_formula_sum            'C32 H36 Li2 N2 O10 S4'
_chemical_formula_weight         750.75
_chemical_name_common
'Lithium bis(phenylsulfonyl)imide THF solvate'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.697(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.8793(7)
_cell_length_b                   9.3620(6)
_cell_length_c                   34.239(2)
_cell_measurement_reflns_used    7610
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.283
_cell_measurement_theta_min      2.387
_cell_volume                     3475.6(4)
_computing_cell_refinement       'SMART/SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2001; Sheldrick, 2003)'
_computing_molecular_graphics    'XP (Sheldrick, 1998)'
_computing_publication_material  'XCIF (Sheldrick, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0252
_diffrn_reflns_av_sigmaI/netI    0.0216
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       45
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            36012
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         1.92
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              'Siemens KFFMO2K-90'
_exptl_absorpt_coefficient_mu    0.332
_exptl_absorpt_correction_T_max  0.9504
_exptl_absorpt_correction_T_min  0.9306
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Blessing, R.H. (1995) Acta Cryst. A51, 33-38.'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.435
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1568
_exptl_crystal_recrystallization_method 'Slow cooling of a hot THF solution'
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.16
_refine_diff_density_max         1.097
_refine_diff_density_min         -0.459
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.082
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     542
_refine_ls_number_reflns         8630
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0504
_refine_ls_R_factor_gt           0.0455
_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^)+(0.0602P)^2^+2.8021P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1175
_refine_ls_wR_factor_ref         0.1212
_reflns_number_gt                7668
_reflns_number_total             8630
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b504730g.txt
_cod_data_source_block           kwh0603m
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7008581