Backbone-Substituted beta-Ketoimines and Ketoiminate Clusters: Transoid Li2O2 Squares and D2-Symmetric Li4O4 Cubanes. Synthesis, Crystallography and DFT Calculations
Gietz, T.; Boere, R.T.; Inorganics 5 (2017) 30–; doi:10.3390/inorganics5020030

data_1556504
_publ_section_title
;
 Backbone-Substituted beta-Ketoimines and Ketoiminate Clusters: Transoid
 Li2O2 Squares and D2-Symmetric Li4O4 Cubanes. Synthesis, Crystallography
 and DFT Calculations
;
_journal_name_full               Inorganics
_journal_page_first              30
_journal_paper_doi               10.3390/inorganics5020030
_journal_volume                  5
_journal_year                    2017
_chemical_formula_moiety         'C36 H52 Li2 N2 O4'
_chemical_formula_sum            'C36 H52 Li2 N2 O4'
_chemical_formula_weight         590.68
_chemical_name_systematic
; 
 lithio 2-(2,4,6-trimethylphenylamino)pent-2-en-4-one
 dimer thf adduct
;
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 103.8550(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.0148(5)
_cell_length_b                   15.0628(9)
_cell_length_c                   14.5918(9)
_cell_measurement_reflns_used    5948
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      22.61
_cell_measurement_theta_min      2.62
_cell_volume                     1710.35(18)
_computing_cell_refinement       'APEX2 (Bruker, 2006)'
_computing_data_collection       'APEX2 (Bruker, 2006)'
_computing_data_reduction        'SAINT-Plus (Bruker, 2006)'
_computing_molecular_graphics    'MERCURY (Macrae <i>et al.</i>, 2006)'
_computing_publication_material  'IUCr publCIF (Westrip, 2007)'
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 2003)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
Bruker ApexII CCD area detector
;
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0373
_diffrn_reflns_av_sigmaI/netI    0.0316
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            19537
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.97
_diffrn_source_type              'Bruker D8'
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.9916
_exptl_absorpt_correction_T_min  0.8956
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
SADABS (Sheldrick, 2004)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.147
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.235
_refine_diff_density_min         -0.253
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     204
_refine_ls_number_reflns         3919
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0793
_refine_ls_R_factor_gt           0.0495
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0608P)^2^+0.6606P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1236
_refine_ls_wR_factor_ref         0.1409
_reflns_number_gt                2722
_reflns_number_total             3919
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            Inorganics-2017-5-30.cif
_cod_data_source_block           Complex_2b
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the built-in table derived from the
CIF Core dictionary named 'cif_core.dic' version 2.4.5 last updated
on 2014-11-21.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_Hall     -P2ybc
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1556504