##############################################################################
###                                                                        ###
###        Electronic paper (Acta Crystallographica Section E)             ###
###                                                                        ###
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#                                                                            #
# This CIF contains the data in a paper accepted for publication in Acta     #
# Crystallographica Section E. It conforms to the requirements of Notes      #
# for Authors for Section E, and has been peer reviewed under the auspices   #
# of the IUCr Commission on Journals.                                        #
#                                                                            #
# Full details of the Crystallographic Information File format               #
# are given in the paper "The Crystallographic Information File (CIF):       #
# a New Standard Archive File for Crystallography" by S. R. Hall, F. H.      #
# Allen and I. D. Brown [Acta Cryst. (1991), A47, 655-685].                  #
#                                                                            #
# The current version of the core CIF dictionary is obtainable from          #
# ftp://ftp.iucr.org/pub/cif_core.dic. The current version number is 2.4.    #
#                                                                            #
# Software is freely available for graphical display of the structure(s) in  #
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data_global
_audit_creation_method     SHELXL-97
_journal_date_recd_electronic     2010-09-23
_journal_date_accepted     2010-10-14
_journal_name_full     'Acta Crystallographica, Section E'
_journal_year     2010
_journal_volume     66
_journal_issue     11
_journal_page_first     o2915
_journal_page_last     o2915
_journal_paper_category     QO
_journal_coeditor_code     FL2320
_publ_contact_author
;
     Dr. Seik Weng Ng
     Department of Chemistry
     University of Malaya
     50603 Kuala Lumpur
     Malaysia
;
_publ_contact_author_email     seikweng@um.edu.my
_publ_contact_author_fax     '03 7967 4193'
_publ_contact_author_phone     '03 7967 6778'
_publ_section_title
;
Ethyl 4-[(3,5-di-tert-butyl-2-hydroxybenzylidene)amino]benzoate
;
loop_
    _publ_author_name
    _publ_author_address
    'Shakir, Raied Mustafa'
;
     Department of Chemistry
     University of Malaya
     50603 Kuala Lumpur
     Malaysia
;
    'Ariffin, Azhar'
;
     Department of Chemistry
     University of Malaya
     50603 Kuala Lumpur
     Malaysia
;
    'Ng, Seik Weng'
;
     Department of Chemistry
     University of Malaya
     50603 Kuala Lumpur
     Malaysia
;
_publ_section_synopsis     .
data_I
_audit_creation_method     SHELXL-97
_chemical_name_systematic
;
Ethyl 4-[(di-3,5-tert-butyl-2-hydroxybenzylidene)amino]benzoate
;
_chemical_name_common     ?
_chemical_formula_moiety     'C24 H31 N O3'
_chemical_formula_sum     'C24 H31 N O3'
_chemical_formula_iupac     'C24 H31 N O3'
_chemical_formula_weight     381.50
_chemical_melting_point     ?
_symmetry_cell_setting     monoclinic
_symmetry_space_group_name_H-M     'P 21/c'
loop_
    _symmetry_equiv_pos_as_xyz
    'x, y, z'
    '-x, y+1/2, -z+1/2'
    '-x, -y, -z'
    'x, -y-1/2, z-1/2'
_cell_length_a     18.4789(18)
_cell_length_b     10.7194(11)
_cell_length_c     10.7768(10)
_cell_angle_alpha     90.00
_cell_angle_beta     97.437(2)
_cell_angle_gamma     90.00
_cell_volume     2116.7(4)
_cell_formula_units_Z     4
_cell_measurement_reflns_used     2280
_cell_measurement_theta_min     2.2
_cell_measurement_theta_max     23.8
_cell_measurement_temperature     100(2)
_exptl_crystal_description     Prism
_exptl_crystal_colour     Orange
_exptl_crystal_size_max     0.30
_exptl_crystal_size_mid     0.05
_exptl_crystal_size_min     0.05
_exptl_crystal_density_diffrn     1.197
_exptl_crystal_density_meas     ?
_exptl_crystal_density_method     'not measured'
_exptl_crystal_F_000     824
_exptl_absorpt_coefficient_mu     0.078
_exptl_absorpt_correction_type     none
_diffrn_ambient_temperature     100(2)
_diffrn_radiation_type     MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_source     'fine-focus sealed tube'
_diffrn_radiation_monochromator     graphite
_diffrn_measurement_device_type     'Bruker SMART APEX diffractometer'
_diffrn_measurement_method     'ω scans'
_diffrn_detector_area_resol_mean     ?
_diffrn_reflns_number     19941
_diffrn_reflns_av_R_equivalents     0.0650
_diffrn_reflns_av_sigmaI/netI     0.0594
_diffrn_reflns_theta_min     2.20
_diffrn_reflns_theta_max     27.50
_diffrn_reflns_theta_full     27.50
_diffrn_measured_fraction_theta_max     1.000
_diffrn_measured_fraction_theta_full     1.000
_diffrn_reflns_limit_h_min     -24
_diffrn_reflns_limit_h_max     23
_diffrn_reflns_limit_k_min     -13
_diffrn_reflns_limit_k_max     13
_diffrn_reflns_limit_l_min     -13
_diffrn_reflns_limit_l_max     14
_diffrn_standards_number     0
_diffrn_standards_interval_count     0
_diffrn_standards_interval_time     0
_diffrn_standards_decay_%     0
_reflns_number_total     4855
_reflns_number_gt     3123
_reflns_threshold_expression     I>2σ(I)
_refine_ls_structure_factor_coef     Fsqd
_refine_ls_matrix_type     full
_refine_ls_R_factor_all     0.0952
_refine_ls_R_factor_gt     0.0532
_refine_ls_wR_factor_gt     0.1195
_refine_ls_wR_factor_ref     0.1424
_refine_ls_goodness_of_fit_ref     1.007
_refine_ls_restrained_S_all     1.008
_refine_ls_number_reflns     4855
_refine_ls_number_parameters     257
_refine_ls_number_restraints     1
_refine_ls_hydrogen_treatment     mixed
_refine_ls_weighting_scheme     calc
_refine_ls_weighting_details
         'calc w=1/[σ²(Fo²)+(0.0558P)²+1.1473P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_hydrogens     geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary     difmap
_refine_ls_shift/su_max     0.001
_refine_ls_shift/su_mean     0.001
_refine_diff_density_max     0.639
_refine_diff_density_min     -0.255
_refine_ls_extinction_method     none
_refine_ls_extinction_coef     ?
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'
    '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'
_computing_data_collection     'APEX2 (Bruker, 2009)'
_computing_cell_refinement     'SAINT (Bruker, 2009)'
_computing_data_reduction     'SAINT (Bruker, 2009)'
_computing_structure_solution     'SHELXS97 (Sheldrick, 2008)'
_computing_structure_refinement     'SHELXL97 (Sheldrick, 2008)'
_computing_molecular_graphics     'X-Seed (Barbour, 2001)'
_computing_publication_material     'publCIF (Westrip, 2010)'
loop_
    _atom_site_type_symbol
    _atom_site_label
    _atom_site_fract_x
    _atom_site_fract_y
    _atom_site_fract_z
    _atom_site_U_iso_or_equiv
    _atom_site_adp_type
    _atom_site_calc_flag
    _atom_site_refinement_flags
    _atom_site_occupancy
    _atom_site_disorder_assembly
    _atom_site_disorder_group
    O O1 0.78175(8) 0.89233(13) 0.62825(14) 0.0252(3) Uani d D 1 . .
    H H1 0.7466(13) 0.885(3) 0.567(2) 0.086(12) Uiso d D 1 . .
    O O2 0.42198(8) 0.93692(14) 0.03223(14) 0.0291(4) Uani d . 1 . .
    O O3 0.43875(7) 0.73467(13) -0.01081(13) 0.0237(3) Uani d . 1 . .
    N N1 0.67954(9) 0.79668(16) 0.46645(16) 0.0222(4) Uani d . 1 . .
    C C1 0.78970(11) 0.77878(18) 0.68363(19) 0.0203(4) Uani d . 1 . .
    C C2 0.84179(10) 0.76051(18) 0.78972(18) 0.0186(4) Uani d . 1 . .
    C C3 0.85050(10) 0.63866(18) 0.83515(18) 0.0180(4) Uani d . 1 . .
    H H3 0.8862 0.6243 0.9054 0.022 Uiso calc R 1 . .
    C C4 0.80999(10) 0.53616(18) 0.78384(18) 0.0183(4) Uani d . 1 . .
    C C5 0.75592(10) 0.56031(19) 0.68469(18) 0.0199(4) Uani d . 1 . .
    H H5 0.7253 0.4941 0.6509 0.024 Uiso calc R 1 . .
    C C6 0.74560(10) 0.67938(19) 0.63368(18) 0.0201(4) Uani d . 1 . .
    C C7 0.94204(12) 0.9088(2) 0.7566(2) 0.0290(5) Uani d . 1 . .
    H H7A 0.9137 0.9359 0.6780 0.044 Uiso calc R 1 . .
    H H7B 0.9735 0.8388 0.7402 0.044 Uiso calc R 1 . .
    H H7C 0.9722 0.9782 0.7930 0.044 Uiso calc R 1 . .
    C C8 0.88965(11) 0.86740(19) 0.84883(19) 0.0219(4) Uani d . 1 . .
    C C9 0.84263(13) 0.9784(2) 0.8811(2) 0.0295(5) Uani d . 1 . .
    H H9A 0.8124 1.0072 0.8051 0.044 Uiso calc R 1 . .
    H H9B 0.8744 1.0464 0.9158 0.044 Uiso calc R 1 . .
    H H9C 0.8112 0.9521 0.9428 0.044 Uiso calc R 1 . .
    C C10 0.93590(13) 0.8274(2) 0.9709(2) 0.0304(5) Uani d . 1 . .
    H H10A 0.9670 0.7569 0.9542 0.046 Uiso calc R 1 . .
    H H10B 0.9037 0.8024 1.0320 0.046 Uiso calc R 1 . .
    H H10C 0.9665 0.8974 1.0044 0.046 Uiso calc R 1 . .
    C C11 0.82432(11) 0.40232(18) 0.82969(18) 0.0197(4) Uani d . 1 . .
    C C12 0.75683(11) 0.3511(2) 0.8825(2) 0.0254(5) Uani d . 1 . .
    H H12A 0.7465 0.4030 0.9529 0.038 Uiso calc R 1 . .
    H H12B 0.7662 0.2652 0.9111 0.038 Uiso calc R 1 . .
    H H12C 0.7148 0.3526 0.8169 0.038 Uiso calc R 1 . .
    C C13 0.84080(12) 0.3212(2) 0.7192(2) 0.0259(5) Uani d . 1 . .
    H H13A 0.8838 0.3540 0.6858 0.039 Uiso calc R 1 . .
    H H13B 0.7988 0.3225 0.6535 0.039 Uiso calc R 1 . .
    H H13C 0.8502 0.2352 0.7479 0.039 Uiso calc R 1 . .
    C C14 0.88904(11) 0.3930(2) 0.9334(2) 0.0247(5) Uani d . 1 . .
    H H14A 0.9330 0.4251 0.9025 0.037 Uiso calc R 1 . .
    H H14B 0.8966 0.3056 0.9583 0.037 Uiso calc R 1 . .
    H H14C 0.8789 0.4423 1.0057 0.037 Uiso calc R 1 . .
    C C15 0.68922(11) 0.69415(19) 0.52586(19) 0.0219(4) Uani d . 1 . .
    H H15 0.6589 0.6250 0.4995 0.026 Uiso calc R 1 . .
    C C16 0.62487(10) 0.8028(2) 0.36008(19) 0.0213(4) Uani d . 1 . .
    C C17 0.59190(11) 0.9167(2) 0.3314(2) 0.0235(5) Uani d . 1 . .
    H H17 0.6062 0.9876 0.3815 0.028 Uiso calc R 1 . .
    C C18 0.53831(11) 0.9279(2) 0.23032(19) 0.0228(5) Uani d . 1 . .
    H H18 0.5157 1.0064 0.2116 0.027 Uiso calc R 1 . .
    C C19 0.51707(10) 0.82475(19) 0.15535(19) 0.0202(4) Uani d . 1 . .
    C C20 0.55214(11) 0.7112(2) 0.18075(19) 0.0214(4) Uani d . 1 . .
    H H20 0.5391 0.6411 0.1286 0.026 Uiso calc R 1 . .
    C C21 0.60615(11) 0.7002(2) 0.28224(19) 0.0234(5) Uani d . 1 . .
    H H21 0.6305 0.6228 0.2990 0.028 Uiso calc R 1 . .
    C C22 0.45526(11) 0.84073(19) 0.05346(19) 0.0209(4) Uani d . 1 . .
    C C23 0.37799(11) 0.7442(2) -0.1100(2) 0.0265(5) Uani d . 1 . .
    H H23A 0.3908 0.8002 -0.1768 0.032 Uiso calc R 1 . .
    H H23B 0.3347 0.7788 -0.0767 0.032 Uiso calc R 1 . .
    C C24 0.36159(12) 0.6163(2) -0.1613(2) 0.0281(5) Uani d . 1 . .
    H H24A 0.3206 0.6204 -0.2286 0.042 Uiso calc R 1 . .
    H H24B 0.3488 0.5616 -0.0945 0.042 Uiso calc R 1 . .
    H H24C 0.4046 0.5830 -0.1944 0.042 Uiso calc R 1 . .
loop_
    _geom_bond_atom_site_label_1
    _geom_bond_atom_site_label_2
    _geom_bond_site_symmetry_2
    _geom_bond_distance
    _geom_bond_publ_flag
    O1 C1 . 1.355(2) ?
    O1 H1 . 0.866(10) ?
    O2 C22 . 1.207(2) ?
    O3 C22 . 1.346(2) ?
    O3 C23 . 1.450(2) ?
    N1 C15 . 1.273(3) ?
    N1 C16 . 1.428(3) ?
    C1 C6 . 1.406(3) ?
    C1 C2 . 1.410(3) ?
    C2 C3 . 1.397(3) ?
    C2 C8 . 1.535(3) ?
    C3 C4 . 1.402(3) ?
    C3 H3 . 0.9500 ?
    C4 C5 . 1.389(3) ?
    C4 C11 . 1.529(3) ?
    C5 C6 . 1.393(3) ?
    C5 H5 . 0.9500 ?
    C6 C15 . 1.465(3) ?
    C7 C8 . 1.540(3) ?
    C7 H7A . 0.9800 ?
    C7 H7B . 0.9800 ?
    C7 H7C . 0.9800 ?
    C8 C10 . 1.534(3) ?
    C8 C9 . 1.539(3) ?
    C9 H9A . 0.9800 ?
    C9 H9B . 0.9800 ?
    C9 H9C . 0.9800 ?
    C10 H10A . 0.9800 ?
    C10 H10B . 0.9800 ?
    C10 H10C . 0.9800 ?
    C11 C14 . 1.531(3) ?
    C11 C13 . 1.537(3) ?
    C11 C12 . 1.537(3) ?
    C12 H12A . 0.9800 ?
    C12 H12B . 0.9800 ?
    C12 H12C . 0.9800 ?
    C13 H13A . 0.9800 ?
    C13 H13B . 0.9800 ?
    C13 H13C . 0.9800 ?
    C14 H14A . 0.9800 ?
    C14 H14B . 0.9800 ?
    C14 H14C . 0.9800 ?
    C15 H15 . 0.9500 ?
    C16 C17 . 1.381(3) ?
    C16 C21 . 1.399(3) ?
    C17 C18 . 1.379(3) ?
    C17 H17 . 0.9500 ?
    C18 C19 . 1.395(3) ?
    C18 H18 . 0.9500 ?
    C19 C20 . 1.389(3) ?
    C19 C22 . 1.488(3) ?
    C20 C21 . 1.387(3) ?
    C20 H20 . 0.9500 ?
    C21 H21 . 0.9500 ?
    C23 C24 . 1.494(3) ?
    C23 H23A . 0.9900 ?
    C23 H23B . 0.9900 ?
    C24 H24A . 0.9800 ?
    C24 H24B . 0.9800 ?
    C24 H24C . 0.9800 ?
loop_
    _geom_angle_atom_site_label_1
    _geom_angle_atom_site_label_2
    _geom_angle_atom_site_label_3
    _geom_angle_site_symmetry_1
    _geom_angle_site_symmetry_3
    _geom_angle
    _geom_angle_publ_flag
    C1 O1 H1 . . 106(2) ?
    C22 O3 C23 . . 114.99(16) ?
    C15 N1 C16 . . 118.83(18) ?
    O1 C1 C6 . . 119.20(18) ?
    O1 C1 C2 . . 120.37(18) ?
    C6 C1 C2 . . 120.43(18) ?
    C3 C2 C1 . . 116.73(18) ?
    C3 C2 C8 . . 121.24(17) ?
    C1 C2 C8 . . 121.96(18) ?
    C2 C3 C4 . . 124.26(18) ?
    C2 C3 H3 . . 117.9 ?
    C4 C3 H3 . . 117.9 ?
    C5 C4 C3 . . 116.83(18) ?
    C5 C4 C11 . . 120.03(17) ?
    C3 C4 C11 . . 123.12(17) ?
    C4 C5 C6 . . 121.49(19) ?
    C4 C5 H5 . . 119.3 ?
    C6 C5 H5 . . 119.3 ?
    C5 C6 C1 . . 120.03(18) ?
    C5 C6 C15 . . 117.32(18) ?
    C1 C6 C15 . . 122.63(19) ?
    C8 C7 H7A . . 109.5 ?
    C8 C7 H7B . . 109.5 ?
    H7A C7 H7B . . 109.5 ?
    C8 C7 H7C . . 109.5 ?
    H7A C7 H7C . . 109.5 ?
    H7B C7 H7C . . 109.5 ?
    C10 C8 C2 . . 112.00(17) ?
    C10 C8 C7 . . 107.87(18) ?
    C2 C8 C7 . . 108.92(17) ?
    C10 C8 C9 . . 106.89(17) ?
    C2 C8 C9 . . 111.03(17) ?
    C7 C8 C9 . . 110.07(18) ?
    C8 C9 H9A . . 109.5 ?
    C8 C9 H9B . . 109.5 ?
    H9A C9 H9B . . 109.5 ?
    C8 C9 H9C . . 109.5 ?
    H9A C9 H9C . . 109.5 ?
    H9B C9 H9C . . 109.5 ?
    C8 C10 H10A . . 109.5 ?
    C8 C10 H10B . . 109.5 ?
    H10A C10 H10B . . 109.5 ?
    C8 C10 H10C . . 109.5 ?
    H10A C10 H10C . . 109.5 ?
    H10B C10 H10C . . 109.5 ?
    C4 C11 C14 . . 112.55(16) ?
    C4 C11 C13 . . 108.92(16) ?
    C14 C11 C13 . . 108.30(16) ?
    C4 C11 C12 . . 109.85(16) ?
    C14 C11 C12 . . 107.53(17) ?
    C13 C11 C12 . . 109.64(17) ?
    C11 C12 H12A . . 109.5 ?
    C11 C12 H12B . . 109.5 ?
    H12A C12 H12B . . 109.5 ?
    C11 C12 H12C . . 109.5 ?
    H12A C12 H12C . . 109.5 ?
    H12B C12 H12C . . 109.5 ?
    C11 C13 H13A . . 109.5 ?
    C11 C13 H13B . . 109.5 ?
    H13A C13 H13B . . 109.5 ?
    C11 C13 H13C . . 109.5 ?
    H13A C13 H13C . . 109.5 ?
    H13B C13 H13C . . 109.5 ?
    C11 C14 H14A . . 109.5 ?
    C11 C14 H14B . . 109.5 ?
    H14A C14 H14B . . 109.5 ?
    C11 C14 H14C . . 109.5 ?
    H14A C14 H14C . . 109.5 ?
    H14B C14 H14C . . 109.5 ?
    N1 C15 C6 . . 122.09(19) ?
    N1 C15 H15 . . 119.0 ?
    C6 C15 H15 . . 119.0 ?
    C17 C16 C21 . . 119.51(19) ?
    C17 C16 N1 . . 117.79(19) ?
    C21 C16 N1 . . 122.64(19) ?
    C18 C17 C16 . . 120.3(2) ?
    C18 C17 H17 . . 119.8 ?
    C16 C17 H17 . . 119.8 ?
    C17 C18 C19 . . 120.5(2) ?
    C17 C18 H18 . . 119.7 ?
    C19 C18 H18 . . 119.7 ?
    C20 C19 C18 . . 119.40(18) ?
    C20 C19 C22 . . 122.69(19) ?
    C18 C19 C22 . . 117.87(18) ?
    C21 C20 C19 . . 120.0(2) ?
    C21 C20 H20 . . 120.0 ?
    C19 C20 H20 . . 120.0 ?
    C20 C21 C16 . . 120.18(19) ?
    C20 C21 H21 . . 119.9 ?
    C16 C21 H21 . . 119.9 ?
    O2 C22 O3 . . 123.23(18) ?
    O2 C22 C19 . . 124.17(19) ?
    O3 C22 C19 . . 112.57(17) ?
    O3 C23 C24 . . 107.99(17) ?
    O3 C23 H23A . . 110.1 ?
    C24 C23 H23A . . 110.1 ?
    O3 C23 H23B . . 110.1 ?
    C24 C23 H23B . . 110.1 ?
    H23A C23 H23B . . 108.4 ?
    C23 C24 H24A . . 109.5 ?
    C23 C24 H24B . . 109.5 ?
    H24A C24 H24B . . 109.5 ?
    C23 C24 H24C . . 109.5 ?
    H24A C24 H24C . . 109.5 ?
    H24B C24 H24C . . 109.5 ?
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_site_symmetry_1
    _geom_torsion_site_symmetry_2
    _geom_torsion_site_symmetry_3
    _geom_torsion_site_symmetry_4
    _geom_torsion
    _geom_torsion_publ_flag
    O1 C1 C2 C3 . . . . -175.11(17) ?
    C6 C1 C2 C3 . . . . 4.6(3) ?
    O1 C1 C2 C8 . . . . 1.8(3) ?
    C6 C1 C2 C8 . . . . -178.52(18) ?
    C1 C2 C3 C4 . . . . -1.5(3) ?
    C8 C2 C3 C4 . . . . -178.36(18) ?
    C2 C3 C4 C5 . . . . -2.7(3) ?
    C2 C3 C4 C11 . . . . 175.58(19) ?
    C3 C4 C5 C6 . . . . 3.9(3) ?
    C11 C4 C5 C6 . . . . -174.44(18) ?
    C4 C5 C6 C1 . . . . -0.9(3) ?
    C4 C5 C6 C15 . . . . 177.43(18) ?
    O1 C1 C6 C5 . . . . 176.18(18) ?
    C2 C1 C6 C5 . . . . -3.5(3) ?
    O1 C1 C6 C15 . . . . -2.1(3) ?
    C2 C1 C6 C15 . . . . 178.18(18) ?
    C3 C2 C8 C10 . . . . -9.4(3) ?
    C1 C2 C8 C10 . . . . 173.86(19) ?
    C3 C2 C8 C7 . . . . 109.8(2) ?
    C1 C2 C8 C7 . . . . -66.9(2) ?
    C3 C2 C8 C9 . . . . -128.8(2) ?
    C1 C2 C8 C9 . . . . 54.5(2) ?
    C5 C4 C11 C14 . . . . 176.14(18) ?
    C3 C4 C11 C14 . . . . -2.1(3) ?
    C5 C4 C11 C13 . . . . 56.0(2) ?
    C3 C4 C11 C13 . . . . -122.2(2) ?
    C5 C4 C11 C12 . . . . -64.1(2) ?
    C3 C4 C11 C12 . . . . 117.6(2) ?
    C16 N1 C15 C6 . . . . 178.21(17) ?
    C5 C6 C15 N1 . . . . -174.29(19) ?
    C1 C6 C15 N1 . . . . 4.0(3) ?
    C15 N1 C16 C17 . . . . 151.3(2) ?
    C15 N1 C16 C21 . . . . -31.4(3) ?
    C21 C16 C17 C18 . . . . 3.2(3) ?
    N1 C16 C17 C18 . . . . -179.46(18) ?
    C16 C17 C18 C19 . . . . -0.4(3) ?
    C17 C18 C19 C20 . . . . -2.2(3) ?
    C17 C18 C19 C22 . . . . 175.61(19) ?
    C18 C19 C20 C21 . . . . 2.0(3) ?
    C22 C19 C20 C21 . . . . -175.68(18) ?
    C19 C20 C21 C16 . . . . 0.8(3) ?
    C17 C16 C21 C20 . . . . -3.4(3) ?
    N1 C16 C21 C20 . . . . 179.43(18) ?
    C23 O3 C22 O2 . . . . 0.8(3) ?
    C23 O3 C22 C19 . . . . 178.95(17) ?
    C20 C19 C22 O2 . . . . 177.1(2) ?
    C18 C19 C22 O2 . . . . -0.6(3) ?
    C20 C19 C22 O3 . . . . -1.0(3) ?
    C18 C19 C22 O3 . . . . -178.74(18) ?
    C22 O3 C23 C24 . . . . -173.52(17) ?
loop_
    _geom_hbond_atom_site_label_D
    _geom_hbond_atom_site_label_H
    _geom_hbond_atom_site_label_A
    _geom_hbond_site_symmetry_A
    _geom_hbond_distance_DH
    _geom_hbond_distance_HA
    _geom_hbond_distance_DA
    _geom_hbond_angle_DHA
    _geom_hbond_publ_flag
    O1 H1 N1 . 0.870(10)
                       1.80(2) 2.609(2) 154(3) yes
