Lithiation of TMEDA and its Higher Homologous TEEDA: Understanding Observed α- and β-Deprotonation
Viktoria H. Gessner; Carsten Strohmann; Journal of the American Chemical Society 130 (2008) 14412–14413; doi:10.1021/ja8058205

data_4108610
_publ_contact_author_address
;
Institut fuer Anorganische Chemie
Universitaet Wuerzburg
Am Hubland
97074 Wuerzburg
Germany
;
_publ_contact_author_email       mail@carsten-strohmann.de
_publ_contact_author_fax         '0049 931 888 4605'
_publ_contact_author_name        'Carsten Strohmann'
_publ_contact_author_phone       '0049 931 888 4613'
_publ_section_title
;
 Lithiation of TMEDA and its Higher Homologous TEEDA: Understanding
 Observed \a- and \b-Deprotonation
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14412
_journal_page_last               14413
_journal_paper_doi               10.1021/ja8058205
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C24 H60 Li4 N8'
_chemical_formula_weight         488.56
_space_group_IT_number           88
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4ad'
_symmetry_space_group_name_H-M   'I 41/a :2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2007-04-19T21:31:30-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.851(6)
_cell_length_b                   19.851
_cell_length_c                   8.639(3)
_cell_measurement_temperature    173(2)
_cell_volume                     3404.3(16)
_computing_cell_refinement       'SAINTPLUS 6.02 (Bruker AXS, 1999)'
_computing_data_collection       'SMART 5.622 (Bruker AXS, 2001)'
_computing_data_reduction        'SAINTPLUS 6.02 (Bruker AXS, 1999)'
_computing_molecular_graphics    'Ortep-3 V1.073 (Farrugia, 2001)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-90 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device_type  'Bruker APEX-CCD'
_diffrn_measurement_method       omega-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.037
_diffrn_reflns_av_unetI/netI     0.0278
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            10570
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    0.056
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    0.953
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.194
_refine_diff_density_min         -0.24
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.088
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     142
_refine_ls_number_reflns         1677
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.0614
_refine_ls_R_factor_gt           0.0496
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0696P)^2^+0.6934P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1155
_refine_ls_wR_factor_ref         0.1237
_reflns_number_gt                1366
_reflns_number_total             1677
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja8058205_si_001.cif
_cod_data_source_block           vi170407
_cod_original_cell_volume        3404.1(15)
_cod_original_sg_symbol_H-M      'I 41/a'
_cod_database_code               4108610