Racemic N-aryl bis(amidines) and bis(amidinates): on the trail of enantioselective organolanthanide catalysts.
Hill, Michael S.; Hitchcock, Peter B.; Mansell, Stephen M.; Dalton transactions (Cambridge, England : 2003)  (2006) 1544–1553; doi:10.1039/b513521d

data_7006745
_publ_section_title
;
 Racemic N-aryl bis(amidines) and bis(amidinates): on the trail of
 enantioselective organolanthanide catalysts.
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1544
_journal_page_last               1553
_journal_paper_doi               10.1039/b513521d
_journal_year                    2006
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C36 H54 Li2 N4 O2'
_chemical_formula_sum            'C36 H54 Li2 N4 O2'
_chemical_formula_weight         588.71
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2005-03-11T10:09:20-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 93.964(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.8471(9)
_cell_length_b                   11.3986(6)
_cell_length_c                   17.6595(10)
_cell_measurement_reflns_used    20096
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.022
_cell_measurement_theta_min      3.395
_cell_measurement_wavelength     0.71073
_cell_volume                     3583.9(3)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_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-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Nonius Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      -0.357183E-1
_diffrn_orient_matrix_UB_12      -0.636323E-1
_diffrn_orient_matrix_UB_13      -0.174229E-1
_diffrn_orient_matrix_UB_21      0.362342E-1
_diffrn_orient_matrix_UB_22      -0.27387E-1
_diffrn_orient_matrix_UB_23      -0.369596E-1
_diffrn_orient_matrix_UB_31      0.237886E-1
_diffrn_orient_matrix_UB_32      -0.53828E-1
_diffrn_orient_matrix_UB_33      0.394008E-1
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0546
_diffrn_reflns_av_unetI/netI     0.0474
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12759
_diffrn_reflns_theta_full        26
_diffrn_reflns_theta_max         26
_diffrn_reflns_theta_min         3.76
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.066
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.091
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1280
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.19
_refine_diff_density_min         -0.161
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3480
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0976
_refine_ls_R_factor_gt           0.0603
_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^)+(0.0751P)^2^+2.3488P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1432
_refine_ls_wR_factor_ref         0.166
_reflns_number_gt                2329
_reflns_number_total             3480
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b513521d.txt
_cod_data_source_block           mar1205
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7006745