#------------------------------------------------------------------------------
#$Date: 2019-12-11 12:06:29 +0200 (Wed, 11 Dec 2019) $
#$Revision: 244994 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/55/65/1556503.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1556503
loop_
_publ_author_name
'Gietz, T.'
'Boere, R.T.'
_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         'C42 H64 Li2 N2 O4'
_chemical_formula_sum            'C42 H64 Li2 N2 O4'
_chemical_formula_weight         674.83
_chemical_name_systematic
; 
 lithio 2-(2,6-triisopropylphenylamino)pent-2-en-4-one
 dimer thf adduct 
;
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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                69.0400(10)
_cell_angle_beta                 73.6160(10)
_cell_angle_gamma                67.0160(10)
_cell_formula_units_Z            1
_cell_length_a                   9.4060(8)
_cell_length_b                   10.7931(9)
_cell_length_c                   11.9959(10)
_cell_measurement_reflns_used    4350
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.22
_cell_measurement_theta_min      2.38
_cell_volume                     1032.50(15)
_computing_cell_refinement       'APEX2 (Bruker, 2006)'
_computing_data_collection       'APEX2 (Bruker, 2006)'
_computing_data_reduction        'SAINT-Plus (Bruker, 2006)'
_computing_molecular_graphics    'MERCURY (Macrae et al., 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 0.996
_diffrn_measured_fraction_theta_max 0.994
_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  0.0245
_diffrn_reflns_av_sigmaI/netI    0.0320
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            10854
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         26.03
_diffrn_reflns_theta_min         1.84
_diffrn_source_type              'Bruker D8'
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  0.9918
_exptl_absorpt_correction_T_min  0.9136
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
SADABS (Sheldrick, 2004)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.085
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             368
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.228
_refine_diff_density_min         -0.189
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     232
_refine_ls_number_reflns         4040
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0695
_refine_ls_R_factor_gt           0.0464
_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/[σ²(Fo²)+(0.0493P)²+0.3477P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1144
_refine_ls_wR_factor_ref         0.1274
_reflns_number_gt                2908
_reflns_number_total             4040
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            Inorganics-2017-5-30.cif
_cod_data_source_block           Complex_2a
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' 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     -P1
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1556503
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, -z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
O1 O 0.62054(13) 0.38586(11) 0.46815(10) 0.0330(3) Uani 1 1 d . . .
O2 O 0.72089(14) 0.57904(13) 0.55210(11) 0.0410(3) Uani 1 1 d . . .
N1 N 0.45286(16) 0.24326(13) 0.68876(12) 0.0282(3) Uani 1 1 d . . .
C1 C 0.2901(3) 0.5233(2) 0.90602(19) 0.0631(7) Uani 1 1 d . . .
H1A H 0.1976 0.5765 0.8664 0.076 Uiso 1 1 calc R . .
H1B H 0.3553 0.5826 0.8871 0.076 Uiso 1 1 calc R . .
H1C H 0.2570 0.4937 0.9938 0.076 Uiso 1 1 calc R . .
C2 C 0.3842(3) 0.3944(2) 0.86040(17) 0.0457(5) Uani 1 1 d . . .
H2 H 0.4269 0.4282 0.7728 0.055 Uiso 1 1 calc R . .
C3 C 0.5229(3) 0.3054(3) 0.9265(2) 0.0659(7) Uani 1 1 d . . .
H3A H 0.4849 0.2644 1.0116 0.079 Uiso 1 1 calc R . .
H3B H 0.5831 0.3641 0.9215 0.079 Uiso 1 1 calc R . .
H3C H 0.5900 0.2302 0.8890 0.079 Uiso 1 1 calc R . .
C4 C 0.2871(2) 0.30578(18) 0.86996(15) 0.0383(5) Uani 1 1 d . . .
C5 C 0.1598(3) 0.2972(2) 0.96165(17) 0.0504(5) Uani 1 1 d . . .
H5 H 0.1314 0.3493 1.0183 0.061 Uiso 1 1 calc R . .
C6 C 0.0739(3) 0.2141(2) 0.97197(19) 0.0555(6) Uani 1 1 d . . .
H6 H -0.0124 0.2086 1.0357 0.067 Uiso 1 1 calc R . .
C7 C 0.1135(2) 0.1393(2) 0.88985(18) 0.0477(5) Uani 1 1 d . . .
H7 H 0.0529 0.0831 0.8973 0.057 Uiso 1 1 calc R . .
C8 C 0.2398(2) 0.14384(17) 0.79612(16) 0.0354(4) Uani 1 1 d . . .
C9 C 0.2749(2) 0.06284(18) 0.70573(17) 0.0376(4) Uani 1 1 d . . .
H9 H 0.3766 0.0687 0.6526 0.045 Uiso 1 1 calc R . .
C10 C 0.1501(3) 0.1281(2) 0.6246(2) 0.0559(6) Uani 1 1 d . . .
H10A H 0.0489 0.1230 0.6741 0.067 Uiso 1 1 calc R . .
H10B H 0.1790 0.0769 0.5643 0.067 Uiso 1 1 calc R . .
H10C H 0.1424 0.2265 0.5834 0.067 Uiso 1 1 calc R . .
C11 C 0.2934(3) -0.0918(2) 0.7657(2) 0.0550(6) Uani 1 1 d . . .
H11A H 0.3760 -0.1337 0.8156 0.066 Uiso 1 1 calc R . .
H11B H 0.3216 -0.1400 0.7033 0.066 Uiso 1 1 calc R . .
H11C H 0.1944 -0.1012 0.8169 0.066 Uiso 1 1 calc R . .
C12 C 0.3280(2) 0.22723(17) 0.78737(15) 0.0312(4) Uani 1 1 d . . .
C13 C 0.6220(2) 0.01017(19) 0.78979(18) 0.0473(5) Uani 1 1 d . . .
H13A H 0.5357 0.0185 0.8582 0.057 Uiso 1 1 calc R . .
H13B H 0.7195 -0.0060 0.8153 0.057 Uiso 1 1 calc R . .
H13C H 0.6329 -0.0687 0.7621 0.057 Uiso 1 1 calc R . .
C14 C 0.5878(2) 0.14437(17) 0.68721(16) 0.0317(4) Uani 1 1 d . . .
C15 C 0.7152(2) 0.15324(17) 0.58895(16) 0.0338(4) Uani 1 1 d . . .
H15 H 0.8035 0.0704 0.5925 0.041 Uiso 1 1 calc R . .
C16 C 0.72711(19) 0.26526(17) 0.49034(16) 0.0307(4) Uani 1 1 d . . .
C17 C 0.8765(2) 0.2504(2) 0.39958(18) 0.0434(5) Uani 1 1 d . . .
H17A H 0.8550 0.2585 0.3215 0.052 Uiso 1 1 calc R . .
H17B H 0.9534 0.1585 0.4282 0.052 Uiso 1 1 calc R . .
H17C H 0.9183 0.3244 0.3900 0.052 Uiso 1 1 calc R . .
C18 C 0.6365(2) 0.6684(2) 0.62992(19) 0.0510(5) Uani 1 1 d . . .
H18A H 0.5380 0.6491 0.6745 0.061 Uiso 1 1 calc R . .
H18B H 0.6108 0.7683 0.5823 0.061 Uiso 1 1 calc R . .
C19 C 0.7433(3) 0.6355(2) 0.7159(2) 0.0593(6) Uani 1 1 d . . .
H19A H 0.6832 0.6381 0.7978 0.071 Uiso 1 1 calc R . .
H19B H 0.8012 0.7034 0.6877 0.071 Uiso 1 1 calc R . .
C20 C 0.8541(3) 0.4898(2) 0.7169(2) 0.0635(7) Uani 1 1 d . . .
H20A H 0.9642 0.4886 0.6961 0.076 Uiso 1 1 calc R . .
H20B H 0.8391 0.4231 0.7976 0.076 Uiso 1 1 calc R . .
C21 C 0.8143(3) 0.4527(2) 0.6238(2) 0.0624(7) Uani 1 1 d . . .
H21A H 0.9109 0.4094 0.5727 0.075 Uiso 1 1 calc R . .
H21B H 0.7555 0.3852 0.6632 0.075 Uiso 1 1 calc R . .
Li1 Li 0.5892(3) 0.5784(3) 0.4487(3) 0.0327(7) Uani 1 1 d . . .
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Li Li -0.0003 0.0001 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
C16 O1 Li1 123.68(13) . 2_666
C16 O1 Li1 139.74(14) . .
Li1 O1 Li1 85.89(13) 2_666 .
C21 O2 C18 106.39(15) . .
C21 O2 Li1 121.88(14) . .
C18 O2 Li1 113.21(13) . .
C14 N1 C12 120.58(14) . .
C14 N1 Li1 121.63(14) . 2_666
C12 N1 Li1 117.77(13) . 2_666
C2 C1 H1A 109.5 . .
C2 C1 H1B 109.5 . .
H1A C1 H1B 109.5 . .
C2 C1 H1C 109.5 . .
H1A C1 H1C 109.5 . .
H1B C1 H1C 109.5 . .
C4 C2 C3 110.21(16) . .
C4 C2 C1 113.51(18) . .
C3 C2 C1 110.38(18) . .
C4 C2 H2 107.5 . .
C3 C2 H2 107.5 . .
C1 C2 H2 107.5 . .
C2 C3 H3A 109.5 . .
C2 C3 H3B 109.5 . .
H3A C3 H3B 109.5 . .
C2 C3 H3C 109.5 . .
H3A C3 H3C 109.5 . .
H3B C3 H3C 109.5 . .
C5 C4 C12 118.66(18) . .
C5 C4 C2 121.06(17) . .
C12 C4 C2 120.25(16) . .
C6 C5 C4 121.04(19) . .
C6 C5 H5 119.5 . .
C4 C5 H5 119.5 . .
C7 C6 C5 119.86(19) . .
C7 C6 H6 120.1 . .
C5 C6 H6 120.1 . .
C6 C7 C8 121.64(19) . .
C6 C7 H7 119.2 . .
C8 C7 H7 119.2 . .
C7 C8 C12 118.08(17) . .
C7 C8 C9 119.37(16) . .
C12 C8 C9 122.53(16) . .
C8 C9 C11 112.87(16) . .
C8 C9 C10 111.33(15) . .
C11 C9 C10 109.95(17) . .
C8 C9 H9 107.5 . .
C11 C9 H9 107.5 . .
C10 C9 H9 107.5 . .
C9 C10 H10A 109.5 . .
C9 C10 H10B 109.5 . .
H10A C10 H10B 109.5 . .
C9 C10 H10C 109.5 . .
H10A C10 H10C 109.5 . .
H10B C10 H10C 109.5 . .
C9 C11 H11A 109.5 . .
C9 C11 H11B 109.5 . .
H11A C11 H11B 109.5 . .
C9 C11 H11C 109.5 . .
H11A C11 H11C 109.5 . .
H11B C11 H11C 109.5 . .
C8 C12 C4 120.71(16) . .
C8 C12 N1 120.69(15) . .
C4 C12 N1 118.40(15) . .
C14 C13 H13A 109.5 . .
C14 C13 H13B 109.5 . .
H13A C13 H13B 109.5 . .
C14 C13 H13C 109.5 . .
H13A C13 H13C 109.5 . .
H13B C13 H13C 109.5 . .
N1 C14 C15 122.86(15) . .
N1 C14 C13 122.44(16) . .
C15 C14 C13 114.70(15) . .
C16 C15 C14 128.68(16) . .
C16 C15 H15 115.7 . .
C14 C15 H15 115.7 . .
O1 C16 C15 125.34(16) . .
O1 C16 C17 115.69(15) . .
C15 C16 C17 118.96(15) . .
C16 C17 H17A 109.5 . .
C16 C17 H17B 109.5 . .
H17A C17 H17B 109.5 . .
C16 C17 H17C 109.5 . .
H17A C17 H17C 109.5 . .
H17B C17 H17C 109.5 . .
O2 C18 C19 105.71(16) . .
O2 C18 H18A 110.6 . .
C19 C18 H18A 110.6 . .
O2 C18 H18B 110.6 . .
C19 C18 H18B 110.6 . .
H18A C18 H18B 108.7 . .
C18 C19 C20 104.96(17) . .
C18 C19 H19A 110.8 . .
C20 C19 H19A 110.8 . .
C18 C19 H19B 110.8 . .
C20 C19 H19B 110.8 . .
H19A C19 H19B 108.8 . .
C21 C20 C19 105.19(18) . .
C21 C20 H20A 110.7 . .
C19 C20 H20A 110.7 . .
C21 C20 H20B 110.7 . .
C19 C20 H20B 110.7 . .
H20A C20 H20B 108.8 . .
O2 C21 C20 107.23(17) . .
O2 C21 H21A 110.3 . .
C20 C21 H21A 110.3 . .
O2 C21 H21B 110.3 . .
C20 C21 H21B 110.3 . .
H21A C21 H21B 108.5 . .
O1 Li1 O1 94.11(13) 2_666 .
O1 Li1 O2 108.38(14) 2_666 .
O1 Li1 O2 106.80(14) . .
O1 Li1 N1 95.96(13) 2_666 2_666
O1 Li1 N1 134.93(16) . 2_666
O2 Li1 N1 111.27(14) . 2_666
O1 Li1 Li1 47.33(10) 2_666 2_666
O1 Li1 Li1 46.77(9) . 2_666
O2 Li1 Li1 116.32(18) . 2_666
N1 Li1 Li1 126.62(19) 2_666 2_666
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
O1 C16 1.2860(19) .
O1 Li1 1.899(3) 2_666
O1 Li1 1.917(3) .
O2 C21 1.422(2) .
O2 C18 1.435(2) .
O2 Li1 1.988(3) .
N1 C14 1.301(2) .
N1 C12 1.427(2) .
N1 Li1 2.021(3) 2_666
C1 C2 1.526(3) .
C1 H1A 0.9800 .
C1 H1B 0.9800 .
C1 H1C 0.9800 .
C2 C4 1.520(3) .
C2 C3 1.521(3) .
C2 H2 1.0000 .
C3 H3A 0.9800 .
C3 H3B 0.9800 .
C3 H3C 0.9800 .
C4 C5 1.387(3) .
C4 C12 1.407(2) .
C5 C6 1.379(3) .
C5 H5 0.9500 .
C6 C7 1.374(3) .
C6 H6 0.9500 .
C7 C8 1.390(3) .
C7 H7 0.9500 .
C8 C12 1.406(2) .
C8 C9 1.517(3) .
C9 C11 1.522(3) .
C9 C10 1.525(3) .
C9 H9 1.0000 .
C10 H10A 0.9800 .
C10 H10B 0.9800 .
C10 H10C 0.9800 .
C11 H11A 0.9800 .
C11 H11B 0.9800 .
C11 H11C 0.9800 .
C13 C14 1.517(2) .
C13 H13A 0.9800 .
C13 H13B 0.9800 .
C13 H13C 0.9800 .
C14 C15 1.431(2) .
C15 C16 1.372(2) .
C15 H15 0.9500 .
C16 C17 1.507(2) .
C17 H17A 0.9800 .
C17 H17B 0.9800 .
C17 H17C 0.9800 .
C18 C19 1.497(3) .
C18 H18A 0.9900 .
C18 H18B 0.9900 .
C19 C20 1.507(3) .
C19 H19A 0.9900 .
C19 H19B 0.9900 .
C20 C21 1.491(3) .
C20 H20A 0.9900 .
C20 H20B 0.9900 .
C21 H21A 0.9900 .
C21 H21B 0.9900 .
Li1 Li1 2.600(6) 2_666
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
C3 C2 C4 C5 93.0(2) . . . .
C1 C2 C4 C5 -31.3(3) . . . .
C3 C2 C4 C12 -85.1(2) . . . .
C1 C2 C4 C12 150.55(17) . . . .
C12 C4 C5 C6 -0.3(3) . . . .
C2 C4 C5 C6 -178.47(19) . . . .
C4 C5 C6 C7 -0.6(3) . . . .
C5 C6 C7 C8 0.6(3) . . . .
C6 C7 C8 C12 0.3(3) . . . .
C6 C7 C8 C9 -178.04(18) . . . .
C7 C8 C9 C11 -54.4(2) . . . .
C12 C8 C9 C11 127.30(18) . . . .
C7 C8 C9 C10 69.8(2) . . . .
C12 C8 C9 C10 -108.5(2) . . . .
C7 C8 C12 C4 -1.2(3) . . . .
C9 C8 C12 C4 177.07(16) . . . .
C7 C8 C12 N1 -175.99(16) . . . .
C9 C8 C12 N1 2.3(2) . . . .
C5 C4 C12 C8 1.3(3) . . . .
C2 C4 C12 C8 179.39(16) . . . .
C5 C4 C12 N1 176.12(16) . . . .
C2 C4 C12 N1 -5.7(2) . . . .
C14 N1 C12 C8 -77.7(2) . . . .
Li1 N1 C12 C8 100.90(18) 2_666 . . .
C14 N1 C12 C4 107.43(18) . . . .
Li1 N1 C12 C4 -74.0(2) 2_666 . . .
C12 N1 C14 C15 178.06(15) . . . .
Li1 N1 C14 C15 -0.5(2) 2_666 . . .
C12 N1 C14 C13 -1.9(2) . . . .
Li1 N1 C14 C13 179.61(16) 2_666 . . .
N1 C14 C15 C16 7.7(3) . . . .
C13 C14 C15 C16 -172.39(18) . . . .
Li1 O1 C16 C15 -12.5(3) 2_666 . . .
Li1 O1 C16 C15 118.3(2) . . . .
Li1 O1 C16 C17 168.48(15) 2_666 . . .
Li1 O1 C16 C17 -60.7(3) . . . .
C14 C15 C16 O1 -0.7(3) . . . .
C14 C15 C16 C17 178.30(17) . . . .
C21 O2 C18 C19 33.1(2) . . . .
Li1 O2 C18 C19 169.61(16) . . . .
O2 C18 C19 C20 -22.9(2) . . . .
C18 C19 C20 C21 4.9(3) . . . .
C18 O2 C21 C20 -30.2(2) . . . .
Li1 O2 C21 C20 -161.98(18) . . . .
C19 C20 C21 O2 15.0(3) . . . .
C16 O1 Li1 O1 -140.8(2) . . . 2_666
Li1 O1 Li1 O1 0.0 2_666 . . 2_666
C16 O1 Li1 O2 -30.2(3) . . . .
Li1 O1 Li1 O2 110.60(17) 2_666 . . .
C16 O1 Li1 N1 116.5(2) . . . 2_666
Li1 O1 Li1 N1 -102.6(2) 2_666 . . 2_666
C16 O1 Li1 Li1 -140.8(2) . . . 2_666
C21 O2 Li1 O1 99.72(19) . . . 2_666
C18 O2 Li1 O1 -29.20(19) . . . 2_666
C21 O2 Li1 O1 -0.6(2) . . . .
C18 O2 Li1 O1 -129.52(16) . . . .
C21 O2 Li1 N1 -156.00(17) . . . 2_666
C18 O2 Li1 N1 75.08(18) . . . 2_666
C21 O2 Li1 Li1 49.0(3) . . . 2_666
C18 O2 Li1 Li1 -80.0(2) . . . 2_666
