Structures and reactions of monomeric and dimeric lithium diazapentadienyl complexes with electrophiles: synthesis of α-C,C'-dialkyl-β-diimines, and dissolution-reversible synthesis of an α-alkoxylithium-β-diimine
Carey, David T.; Cope-Eatough, Elaine K.; Vilaplana-Mafé, Eva; Mair, Francis S.; Pritchard, Robin G.; Warren, John E.; Woods, Rebecca J.; Dalton Transactions  (2003) 1083–; doi:10.1039/b212079h

data_7012552
_publ_section_title
;
 Structures and reactions of monomeric and dimeric lithium
 diazapentadienyl complexes with electrophiles: synthesis of
 \a-C,C'-dialkyl-\b-diimines, and dissolution-reversible synthesis of
 an \a-alkoxylithium-\b-diimine
;
_journal_issue                   6
_journal_name_full               'Dalton Transactions'
_journal_page_first              1083
_journal_paper_doi               10.1039/b212079h
_journal_year                    2003
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C29 H36 F6 N2'
_chemical_formula_structural     'C29 H36 F6 N2'
_chemical_formula_sum            'C29 H36 F6 N2'
_chemical_formula_weight         526.6
_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_conform_dict_location
ftp://ftp.iucr.org/cifdics/cif_core_2.1beta5.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.1beta5
_audit_creation_date             1999-12-11T13:51:14-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90.000
_cell_angle_beta                 92.389(10)
_cell_angle_gamma                90.000
_cell_formula_units_Z            4
_cell_length_a                   11.5857(10)
_cell_length_b                   9.3714(10)
_cell_length_c                   26.8363(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_measurement_wavelength     0.71069
_cell_volume                     2911.2(4)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.962
_diffrn_measured_fraction_theta_max 0.962
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0139
_diffrn_reflns_av_sigmaI/netI    0.0269
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            5173
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.097
_exptl_crystal_colour            clear
_exptl_crystal_density_diffrn    1.201
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1112
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.347
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     478
_refine_ls_number_reflns         4916
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0984
_refine_ls_R_factor_gt           0.0571
_refine_ls_shift/su_max          0.04
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0531P)^2^+2.2951P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1251
_refine_ls_wR_factor_ref         0.1482
_reflns_number_gt                3227
_reflns_number_total             4916
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b212079h.txt
_cod_data_source_block           1f
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7012552