Synthesis and Structural Characterization of Lithium Thiolates: Dependence of Association and Aggregation on Donor Hapticity and Ligand Size and Synthesis of the First Trimeric Lithium Thiolate [Li(THF)SR]3 and the Solvent-Separated Ion Pair [Li(12-crown-4)2][SR] (R = 2,4,6-tBu3C6H2)1
Karin Ruhlandt-Senge; Ulrich Englich; Mathias O. Senge; Scott Chadwick; Inorganic Chemistry 35 (1996) 5820–5827; doi:10.1021/ic960375e

data_4323915
_publ_section_title
;
 Synthesis and Structural Characterization of Lithium Thiolates:
 Dependence of Association and Aggregation on Donor Hapticity and Ligand
 Size and Synthesis of the First Trimeric Lithium Thiolate [Li(THF)SR]3
 and the Solvent-Separated Ion Pair [Li(12-crown-4)2][SR] (R =
 2,4,6-tBu3C6H2)1
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5820
_journal_page_last               5827
_journal_paper_doi               10.1021/ic960375e
_journal_volume                  35
_journal_year                    1996
_chemical_formula_sum            'C27 H31 Li O4 S'
_chemical_formula_weight         458.52
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 102.22(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.542(2)
_cell_length_b                   12.821(3)
_cell_length_c                   18.729(4)
_cell_volume                     2474.0(10)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measurement_device       'Rigaku AFC5S'
_diffrn_measurement_method       \w/2\q
_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  0.0196
_diffrn_reflns_av_sigmaI/netI    0.0593
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            7853
_diffrn_reflns_theta_max         30.01
_diffrn_reflns_theta_min         2.23
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.161
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.231
_exptl_crystal_description       rod
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.862
_refine_diff_density_min         -0.466
_refine_diff_density_rms         0.090
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.037
_refine_ls_goodness_of_fit_obs   1.124
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         7191
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.080
_refine_ls_restrained_S_obs      1.126
_refine_ls_R_factor_all          0.1526
_refine_ls_R_factor_obs          0.0859
_refine_ls_shift/esd_max         -0.395
_refine_ls_shift/esd_mean        0.021
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
; 
 w=1/[\s^2^(Fo^2^)+(0.1440P)^2^+1.9613P]
where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.2923
_refine_ls_wR_factor_obs         0.2318
_reflns_number_observed          4206
_reflns_number_total             7203
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ic960375e_6.cif
_cod_data_source_block           Li(12-crown-4)STrityl
_cod_original_cell_volume        2474.0(9)
_cod_database_code               4323915