#------------------------------------------------------------------------------
#$Date: 2025-08-19 12:01:59 +0200 (Tue, 19 Aug 2025) $
#$Revision: 301802 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/06/2100681.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2100681
loop_
_publ_author_name
'V. Bertolasi'
'L. Pretto'
'V. Ferretti'
'P. Gilli'
'G. Gilli'
_publ_section_title
;
 Interplay between steric and electronic factors in determining the
 strength of intramolecular N---H···O
 resonance-assisted hydrogen bonds in \b-enaminones
;
_journal_coeditor_code           BK5040
_journal_date_accepted           2006-09-21
_journal_date_recd_electronic    2006-07-10
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              1112
_journal_page_last               1120
_journal_paper_category          FA
_journal_paper_doi               10.1107/S0108768106036421
_journal_volume                  62
_journal_year                    2006
_chemical_formula_moiety         'C23 H20 N2 O4'
_chemical_formula_sum            'C23 H20 N2 O4'
_chemical_formula_weight         388.41
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.282(2)
_cell_angle_beta                 78.773(2)
_cell_angle_gamma                75.599(2)
_cell_formula_units_Z            2
_cell_length_a                   6.9599(2)
_cell_length_b                   8.4786(3)
_cell_length_c                   17.1616(6)
_cell_measurement_reflns_used    6532
_cell_measurement_temperature    150
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.4
_cell_volume                     958.18(6)
_computing_cell_refinement       'Denzo SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Kappa CCD Server Software (Nonius, 1997)'
_computing_data_reduction        'Denzo SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP III (Burnett & Johnson, 1996)'
_computing_publication_material
;
SHELXL-97 (Sheldrick, 1997), PARST (Nardelli, 1995), PLATON (Spek, 2002)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '\f scans and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0310
_diffrn_reflns_av_sigmaI/netI    0.0360
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8934
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.5
_diffrn_reflns_theta_min         2.4
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.346
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.268
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.188
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     342
_refine_ls_number_reflns         4331
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.188
_refine_ls_R_factor_all          0.0751
_refine_ls_R_factor_gt           0.0555
_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^)+(0.0330P)^2^+0.5384P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1091
_refine_ls_wR_factor_ref         0.1234
_reflns_number_gt                3563
_reflns_number_total             4331
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            bk5040.cif
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2100681
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, -z'
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_occupancy
O O1 -0.07927(19) -0.26221(15) 0.25074(7) 0.0285(3) Uani d 1
O O2 0.59333(19) 0.44447(15) 0.25503(8) 0.0312(3) Uani d 1
O O3 -0.1854(2) -0.76039(17) 0.42083(9) 0.0433(4) Uani d 1
O O4 -0.3032(2) -0.74710(18) 0.54671(9) 0.0413(4) Uani d 1
N N1 0.1250(3) -0.0516(2) 0.16791(9) 0.0301(4) Uani d 1
H H1 0.050(4) -0.130(3) 0.1715(14) 0.046(7) Uiso d 1
N N2 -0.2412(2) -0.68586(19) 0.48049(10) 0.0307(4) Uani d 1
C C1 -0.0588(2) -0.2069(2) 0.31224(10) 0.0225(4) Uani d 1
C C2 0.0472(3) -0.0831(2) 0.30992(10) 0.0230(4) Uani d 1
C C3 0.1366(3) -0.0112(2) 0.23929(10) 0.0228(4) Uani d 1
C C4 0.2527(3) 0.1128(2) 0.24327(10) 0.0229(4) Uani d 1
C C5 0.4392(3) 0.0636(2) 0.26846(11) 0.0254(4) Uani d 1
C C6 0.5489(3) 0.1769(2) 0.27208(11) 0.0260(4) Uani d 1
C C7 0.4724(2) 0.3420(2) 0.25119(10) 0.0222(4) Uani d 1
C C8 0.2841(3) 0.3932(2) 0.22876(10) 0.0249(4) Uani d 1
C C9 0.1758(3) 0.2778(2) 0.22464(11) 0.0270(4) Uani d 1
C C10 -0.1451(2) -0.2801(2) 0.39210(10) 0.0222(4) Uani d 1
C C11 -0.1631(3) -0.4418(2) 0.39848(11) 0.0232(4) Uani d 1
C C12 -0.2333(3) -0.5120(2) 0.47281(11) 0.0256(4) Uani d 1
C C13 -0.2922(3) -0.4272(2) 0.53998(11) 0.0298(4) Uani d 1
C C14 -0.2792(3) -0.2654(3) 0.53250(12) 0.0324(4) Uani d 1
C C15 -0.2049(3) -0.1920(2) 0.45913(11) 0.0268(4) Uani d 1
C C16 0.2143(3) 0.0152(2) 0.09051(11) 0.0304(4) Uani d 1
C C17 0.0695(3) 0.1487(2) 0.04892(10) 0.0281(4) Uani d 1
C C18 0.1380(3) 0.2176(2) -0.02653(11) 0.0345(4) Uani d 1
C C19 0.0112(4) 0.3405(3) -0.06614(12) 0.0409(5) Uani d 1
C C20 -0.1854(4) 0.3961(3) -0.03122(13) 0.0461(6) Uani d 1
C C21 -0.2554(4) 0.3277(3) 0.04312(14) 0.0494(6) Uani d 1
C C22 -0.1286(3) 0.2039(3) 0.08310(12) 0.0388(5) Uani d 1
C C23 0.5207(3) 0.6140(2) 0.23199(15) 0.0365(5) Uani d 1
H H2 0.061(3) -0.048(2) 0.3574(11) 0.022(5) Uiso d 1
H H5 0.493(3) -0.050(3) 0.2833(12) 0.029(5) Uiso d 1
H H6 0.674(3) 0.144(3) 0.2901(12) 0.036(6) Uiso d 1
H H8 0.225(3) 0.511(3) 0.2161(12) 0.033(5) Uiso d 1
H H9 0.044(3) 0.315(3) 0.2096(13) 0.039(6) Uiso d 1
H H11 -0.122(3) -0.505(2) 0.3532(12) 0.027(5) Uiso d 1
H H13 -0.343(3) -0.478(3) 0.5898(13) 0.037(6) Uiso d 1
H H14 -0.319(3) -0.206(3) 0.5788(13) 0.036(6) Uiso d 1
H H15 -0.200(3) -0.080(3) 0.4544(11) 0.026(5) Uiso d 1
H H161 0.329(3) 0.058(3) 0.0985(13) 0.039(6) Uiso d 1
H H162 0.270(3) -0.077(3) 0.0560(13) 0.036(6) Uiso d 1
H H18 0.277(4) 0.178(3) -0.0496(13) 0.040(6) Uiso d 1
H H19 0.060(4) 0.395(3) -0.1189(15) 0.051(7) Uiso d 1
H H20 -0.274(4) 0.483(3) -0.0582(14) 0.050(7) Uiso d 1
H H21 -0.392(5) 0.365(4) 0.0677(17) 0.073(9) Uiso d 1
H H22 -0.181(3) 0.154(3) 0.1364(14) 0.046(6) Uiso d 1
H H231 0.629(3) 0.666(3) 0.2375(12) 0.034(5) Uiso d 1
H H232 0.492(4) 0.631(3) 0.1757(15) 0.049(7) Uiso d 1
H H233 0.393(4) 0.662(3) 0.2686(14) 0.050(7) Uiso d 1
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
O1 0.0344(7) 0.0299(7) 0.0254(6) -0.0137(5) -0.0076(5) -0.0016(5)
O2 0.0270(7) 0.0253(7) 0.0439(8) -0.0093(5) -0.0087(6) -0.0023(6)
O3 0.0569(10) 0.0270(7) 0.0478(9) -0.0153(7) -0.0056(7) -0.0033(7)
O4 0.0450(9) 0.0400(8) 0.0418(8) -0.0212(7) -0.0140(7) 0.0178(7)
N1 0.0412(9) 0.0301(8) 0.0225(8) -0.0163(7) -0.0063(6) 0.0023(6)
N2 0.0283(8) 0.0279(8) 0.0382(9) -0.0112(7) -0.0122(7) 0.0080(7)
C1 0.0206(8) 0.0208(8) 0.0246(8) -0.0029(7) -0.0046(6) 0.0004(7)
C2 0.0258(9) 0.0225(8) 0.0219(8) -0.0067(7) -0.0064(7) -0.0003(7)
C3 0.0228(8) 0.0200(8) 0.0251(8) -0.0036(7) -0.0059(7) 0.0002(7)
C4 0.0240(9) 0.0234(9) 0.0214(8) -0.0077(7) -0.0023(6) -0.0005(7)
C5 0.0261(9) 0.0202(9) 0.0289(9) -0.0031(7) -0.0059(7) -0.0011(7)
C6 0.0216(9) 0.0274(9) 0.0288(9) -0.0037(7) -0.0060(7) -0.0031(7)
C7 0.0229(8) 0.0236(8) 0.0207(8) -0.0085(7) -0.0003(6) -0.0035(6)
C8 0.0264(9) 0.0198(9) 0.0271(9) -0.0048(7) -0.0044(7) 0.0017(7)
C9 0.0234(9) 0.0252(9) 0.0326(9) -0.0063(7) -0.0078(7) 0.0024(7)
C10 0.0189(8) 0.0227(8) 0.0256(8) -0.0058(7) -0.0056(6) 0.0007(7)
C11 0.0202(8) 0.0244(9) 0.0257(9) -0.0055(7) -0.0057(7) -0.0011(7)
C12 0.0221(8) 0.0250(9) 0.0313(9) -0.0091(7) -0.0083(7) 0.0041(7)
C13 0.0254(9) 0.0401(11) 0.0251(9) -0.0135(8) -0.0035(7) 0.0037(8)
C14 0.0316(10) 0.0392(11) 0.0277(9) -0.0128(8) 0.0017(8) -0.0080(8)
C15 0.0262(9) 0.0254(9) 0.0300(9) -0.0087(7) -0.0031(7) -0.0040(7)
C16 0.0346(10) 0.0316(10) 0.0236(9) -0.0089(8) -0.0007(8) -0.0008(8)
C17 0.0365(10) 0.0275(9) 0.0227(9) -0.0108(8) -0.0046(7) -0.0044(7)
C18 0.0409(12) 0.0350(11) 0.0271(10) -0.0115(9) -0.0021(8) -0.0012(8)
C19 0.0616(14) 0.0362(11) 0.0256(10) -0.0122(10) -0.0106(9) 0.0016(8)
C20 0.0579(15) 0.0429(12) 0.0341(11) 0.0038(11) -0.0184(10) -0.0053(9)
C21 0.0405(13) 0.0638(16) 0.0369(12) 0.0037(11) -0.0060(10) -0.0106(11)
C22 0.0379(11) 0.0486(13) 0.0256(10) -0.0054(9) -0.0011(8) -0.0035(9)
C23 0.0346(11) 0.0251(10) 0.0526(13) -0.0126(8) -0.0080(10) -0.0014(9)
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'
O O 0.0106 0.0060 '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'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
C7 O2 C23 116.93(14)
C3 N1 C16 126.46(16)
C3 N1 H1 112.7(14)
C16 N1 H1 120.8(14)
O3 N2 O4 123.93(16)
O3 N2 C12 118.23(15)
O4 N2 C12 117.84(16)
O1 C1 C2 123.18(15)
O1 C1 C10 118.15(15)
C2 C1 C10 118.64(15)
C3 C2 C1 122.90(16)
C3 C2 H2 117.3(11)
C1 C2 H2 119.8(11)
N1 C3 C2 122.10(16)
N1 C3 C4 119.06(15)
C2 C3 C4 118.83(15)
C9 C4 C5 118.98(16)
C9 C4 C3 121.07(15)
C5 C4 C3 119.92(15)
C6 C5 C4 120.56(16)
C6 C5 H5 119.2(12)
C4 C5 H5 120.2(12)
C5 C6 C7 119.93(16)
C5 C6 H6 120.6(13)
C7 C6 H6 119.5(13)
O2 C7 C8 124.15(15)
O2 C7 C6 115.76(15)
C8 C7 C6 120.09(16)
C7 C8 C9 119.45(16)
C7 C8 H8 120.9(12)
C9 C8 H8 119.7(12)
C4 C9 C8 120.93(16)
C4 C9 H9 120.4(13)
C8 C9 H9 118.6(13)
C15 C10 C11 119.73(16)
C15 C10 C1 122.03(15)
C11 C10 C1 118.24(15)
C12 C11 C10 118.33(17)
C12 C11 H11 120.6(12)
C10 C11 H11 121.0(12)
C13 C12 C11 122.81(16)
C13 C12 N2 118.83(16)
C11 C12 N2 118.34(16)
C12 C13 C14 118.35(17)
C12 C13 H13 120.6(13)
C14 C13 H13 121.1(13)
C13 C14 C15 120.40(18)
C13 C14 H14 119.0(13)
C15 C14 H14 120.6(13)
C14 C15 C10 120.32(17)
C14 C15 H15 119.6(12)
C10 C15 H15 120.1(12)
N1 C16 C17 114.42(16)
N1 C16 H161 107.9(12)
C17 C16 H161 109.7(13)
N1 C16 H162 107.8(12)
C17 C16 H162 109.2(12)
H161 C16 H162 107.6(18)
C22 C17 C18 118.68(18)
C22 C17 C16 122.22(17)
C18 C17 C16 119.10(17)
C19 C18 C17 120.9(2)
C19 C18 H18 121.5(13)
C17 C18 H18 117.6(13)
C20 C19 C18 120.1(2)
C20 C19 H19 118.2(14)
C18 C19 H19 121.7(14)
C19 C20 C21 119.6(2)
C19 C20 H20 120.4(15)
C21 C20 H20 120.1(15)
C20 C21 C22 120.6(2)
C20 C21 H21 120.3(18)
C22 C21 H21 119.2(18)
C17 C22 C21 120.2(2)
C17 C22 H22 119.9(13)
C21 C22 H22 119.9(13)
O2 C23 H231 104.7(12)
O2 C23 H232 110.8(14)
H231 C23 H232 112.2(18)
O2 C23 H233 111.4(14)
H231 C23 H233 109.4(18)
H232 C23 H233 108.3(19)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O1 C1 1.256(2)
O2 C7 1.367(2)
O2 C23 1.429(2)
O3 N2 1.223(2)
O4 N2 1.228(2)
N1 C3 1.338(2)
N1 C16 1.457(2)
N1 H1 0.93(2)
N2 C12 1.476(2)
C1 C2 1.418(2)
C1 C10 1.504(2)
C2 C3 1.387(2)
C2 H2 0.933(19)
C3 C4 1.492(2)
C4 C9 1.386(2)
C4 C5 1.395(2)
C5 C6 1.382(3)
C5 H5 0.96(2)
C6 C7 1.393(2)
C6 H6 0.95(2)
C7 C8 1.387(2)
C8 C9 1.392(3)
C8 H8 0.99(2)
C9 H9 0.96(2)
C10 C15 1.394(2)
C10 C11 1.395(2)
C11 C12 1.385(2)
C11 H11 0.96(2)
C12 C13 1.380(3)
C13 C14 1.384(3)
C13 H13 0.95(2)
C14 C15 1.391(3)
C14 H14 0.96(2)
C15 H15 0.95(2)
C16 C17 1.517(3)
C16 H161 0.99(2)
C16 H162 1.00(2)
C17 C22 1.379(3)
C17 C18 1.393(3)
C18 C19 1.383(3)
C18 H18 0.97(2)
C19 C20 1.375(3)
C19 H19 1.00(2)
C20 C21 1.379(3)
C20 H20 0.96(3)
C21 C22 1.391(3)
C21 H21 0.95(3)
C22 H22 1.00(2)
C23 H231 0.99(2)
C23 H232 1.01(2)
C23 H233 1.01(3)
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 ChemSpider 21188118
2 PubChem 139063100