Preparation and X-ray Structures of Alkali-Metal Derivatives of the Ambidentate Anions [tBuN(E)P(μ-NtBu)2P(E)NtBu]2- (E = S, Se) and [tBuN(Se)P(μ-NtBu)2PN(H)tBu)]-
Tristram Chivers; Mark Krahn; Masood Parvez; Gabriele Schatte; Inorganic Chemistry 40 (2001) 2547–2553; doi:10.1021/ic001093o

data_4319671
_publ_contact_author_address
; Department of Chemistry
  University of Calgary
  Calgary Alberta T2N 1N4
  Canada
;
_publ_contact_author_email       chivers@ucalgary.ca
_publ_contact_author_fax         '001 403 289 9488'
_publ_contact_author_name        'Dr Tristram Chivers'
_publ_contact_author_phone       '001 403 220 5741'
_publ_section_title
;
 Preparation and X-ray Structures of Alkali-Metal Derivatives of the
 Ambidentate Anions [tBuN(E)P(\m-NtBu)2P(E)NtBu]2- (E = S, Se) and
 [tBuN(Se)P(\m-NtBu)2PN(H)tBu)]-
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2547
_journal_page_last               2553
_journal_paper_doi               10.1021/ic001093o
_journal_volume                  40
_journal_year                    2001
_chemical_formula_moiety         'C32 H68 Li2 N4 O4 P2 S2,(C4H8O)'
_chemical_formula_sum            'C36 H76 Li2 N4 O5 P2 S2'
_chemical_formula_weight         784.95
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                91.917(12)
_cell_angle_beta                 90.428(16)
_cell_angle_gamma                95.251(14)
_cell_formula_units_Z            2
_cell_length_a                   13.172(3)
_cell_length_b                   16.877(2)
_cell_length_c                   10.3952(16)
_cell_measurement_reflns_used    23
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      20.76
_cell_measurement_theta_min      18.11
_cell_volume                     2299.8(7)
_computing_cell_refinement       'MSC/AFC Diffractometer Control'
_computing_data_collection       'MSC/AFC Diffractometer Control'
_computing_data_reduction        'teXsan (MSC, 1995)'
_computing_molecular_graphics    'teXsan (MSC, 1995)'
_computing_publication_material  'teXsan (MSC, 1995)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-92
_diffrn_ambient_temperature      170(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'Rigaku AFC6S'
_diffrn_measurement_method       \w-2\q
_diffrn_radiation_detector       'scintillation counter'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0315
_diffrn_reflns_av_sigmaI/netI    0.0661
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            8528
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.51
_diffrn_standards_decay_%        5.7
_diffrn_standards_interval_count 200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.225
_exptl_absorpt_correction_T_max  0.9153
_exptl_absorpt_correction_T_min  0.8861
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details
;
 North,Phillips & Matthews, 1968
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.133
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.525
_refine_diff_density_min         -0.332
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     498
_refine_ls_number_reflns         8142
_refine_ls_number_restraints     26
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.1281
_refine_ls_R_factor_gt           0.0610
_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^)+(0.1100P)^2^+2.6200P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1719
_refine_ls_wR_factor_ref         0.2241
_reflns_number_gt                4640
_reflns_number_total             8142
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic001093o_3.cif
_cod_data_source_block           9(THF)
_cod_original_cell_volume        2299.9(7)
_cod_database_code               4319671