# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry.
# This journal is © The Royal Society of Chemistry 2019

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_zx-190331
_database_code_depnum_ccdc_archive 'CCDC 1915043'
loop_
_audit_author_name
_audit_author_address
'Wei-Qiang Chen'
; Harbin Institute of Technology
China
;
_audit_update_record             
;
2019-05-09 deposited with the CCDC.	2019-12-11 downloaded from the CCDC.
;
_audit_creation_date             2019-03-31
_audit_creation_method           
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_shelx_SHELXL_version_number     2018/3
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         'C17 H17 N O4'
_chemical_formula_sum            'C17 H17 N O4'
_chemical_formula_weight         299.31
_chemical_melting_point          ?
_chemical_oxdiff_formula         CHON
_chemical_oxdiff_usercomment     'C H O N'
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0181 0.0091 '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 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_shelx_space_group_comment       
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 1 21/n 1'
_space_group_name_Hall           '-P 2yn'
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x-1/2, -y-1/2, z-1/2'

_cell_length_a                   10.2856(5)
_cell_length_b                   13.4694(6)
_cell_length_c                   11.2174(5)
_cell_angle_alpha                90
_cell_angle_beta                 90.662(4)
_cell_angle_gamma                90
_cell_volume                     1553.98(12)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    2543
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      70.3630
_cell_measurement_theta_min      5.1310
_shelx_estimated_absorpt_T_max   ?
_shelx_estimated_absorpt_T_min   ?
_exptl_absorpt_coefficient_mu    0.754
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.73441
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.279
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       block
_exptl_crystal_F_000             632
_exptl_crystal_size_max          ?
_exptl_crystal_size_mid          ?
_exptl_crystal_size_min          ?
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0163
_diffrn_reflns_av_unetI/netI     0.0193
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5677
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.080
_diffrn_reflns_theta_max         67.080
_diffrn_reflns_theta_min         5.131
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 15.9737
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_details      
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  tₑₓₚ   ω     θ     κ     φ   Frames
#--------------------------------------------------------------------------
  1  ω     20.00  55.00   1.00    1.00    --    0.00  57.00-120.00   35
  2  ω    -21.00  24.00   1.00    1.00    --    0.00  57.00-180.00   45
  3  ω    -39.00 -14.00   1.00    1.00    --    0.00 128.00  67.00   25
  4  ω    -11.00  65.00   1.00    1.00    --   54.00 -57.00 120.00   76
  5  ω     33.00 111.00   1.00    1.00    --   54.00-125.00  30.00   78
  6  ω     62.00 108.00   1.00    1.00    --   54.00  57.00 -60.00   46
  7  ω     27.00 108.00   1.00    1.00    --   54.00  37.00 -90.00   81
  8  ω     53.00  78.00   1.00    1.00    --  108.00 -37.00  60.00   25
  9  ω     81.00 107.00   1.00    1.00    --  108.00-111.00 -90.00   26
 10  ω     36.00 112.00   1.00    1.00    --  108.00-111.00  60.00   76
 11  ω    100.00 171.00   1.00    1.00    --  108.00 111.00  60.00   71
 12  ω    103.00 128.00   1.00    1.00    --  108.00 111.00-180.00   25
 13  ω     88.00 127.00   1.00    1.00    --  108.00 -37.00  60.00   39
 14  ω    108.00 148.00   1.00    1.00    --  108.00 111.00 -90.00   40
 15  ω     81.00 177.00   1.00    1.00    --  108.00  37.00-120.00   96
 16  ω    112.00 166.00   1.00    1.00    --  108.00 111.00 120.00   54
 17  ω     66.00 140.00   1.00    1.00    --  108.00 -77.00  60.00   74
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Eos'
_diffrn_measurement_method       'ω scans'
_diffrn_orient_matrix_type       
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0561952000
_diffrn_orient_matrix_UB_12      0.0991285000
_diffrn_orient_matrix_UB_13      0.0445004000
_diffrn_orient_matrix_UB_21      0.0872735000
_diffrn_orient_matrix_UB_22      0.0567664000
_diffrn_orient_matrix_UB_23      -0.0875056000
_diffrn_orient_matrix_UB_31      -0.1080406000
_diffrn_orient_matrix_UB_32      -0.0057735000
_diffrn_orient_matrix_UB_33      -0.0960011000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2303
_reflns_number_total             2779
_reflns_odcompleteness_completeness 100.00
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     66.97
_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;
_reflns_threshold_expression     'I > 2σ(I)'
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_refine_diff_density_max         0.170
_refine_diff_density_min         -0.152
_refine_diff_density_rms         0.034
_refine_ls_extinction_coef       0.0037(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         2779
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0393
_refine_ls_restrained_S_all      1.020
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0626P)²+0.1784P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1066
_refine_ls_wR_factor_ref         0.1170
_refine_special_details          ?
_olex2_refinement_description    
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C16(H16A,H16B), C15(H15A,H15B)
2.b Aromatic/amide H refined with riding coordinates:
 C12(H12), C13(H13), C8(H8), C2(H2), C10(H10), C6(H6), C9(H9), C3(H3), C5(H5),
 C4(H4)
2.c Idealised Me refined as rotating group:
 C17(H17A,H17B,H17C)
;
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   ?
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_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
N1 N 0.05523(11) 0.19224(8) 0.86778(10) 0.0448(3) Uani 1 1 d . . . . .
O1 O 0.14967(10) 0.63356(7) 0.88490(10) 0.0586(3) Uani 1 1 d . . . . .
C11 C 0.10398(13) 0.28283(10) 0.91109(12) 0.0448(3) Uani 1 1 d . . . . .
O4 O -0.12064(10) 0.24645(8) 0.76059(11) 0.0690(4) Uani 1 1 d . . . . .
O2 O 0.33974(12) 0.78632(9) 0.90002(11) 0.0674(3) Uani 1 1 d . . . . .
C12 C 0.07567(13) 0.37758(10) 0.85665(12) 0.0466(3) Uani 1 1 d . . . . .
H12 H 0.025956 0.377527 0.786878 0.056 Uiso 1 1 calc R . . . .
C13 C 0.11495(14) 0.46428(11) 0.89832(13) 0.0507(4) Uani 1 1 d . . . . .
H13 H 0.161568 0.466636 0.969792 0.061 Uiso 1 1 calc R . . . .
C7 C -0.04739(13) 0.17924(11) 0.78440(13) 0.0471(3) Uani 1 1 d . . . . .
O3 O 0.01764(13) 0.56523(10) 0.74883(13) 0.0847(4) Uani 1 1 d . . . . .
C8 C 0.10803(15) 0.11630(11) 0.93642(14) 0.0549(4) Uani 1 1 d . . . . .
H8 H 0.091043 0.048935 0.926890 0.066 Uiso 1 1 calc R . . . .
C14 C 0.08689(14) 0.55681(11) 0.83473(14) 0.0513(4) Uani 1 1 d . . . . .
C1 C -0.06173(13) 0.07893(10) 0.73133(12) 0.0455(3) Uani 1 1 d . . . . .
C2 C -0.18649(14) 0.03990(12) 0.72115(13) 0.0551(4) Uani 1 1 d . . . . .
H2 H -0.257253 0.075627 0.749104 0.066 Uiso 1 1 calc R . . . .
C10 C 0.18669(15) 0.26016(12) 1.00310(13) 0.0568(4) Uani 1 1 d . . . . .
H10 H 0.234366 0.305817 1.047846 0.068 Uiso 1 1 calc R . . . .
C6 C 0.04259(16) 0.02611(12) 0.68713(15) 0.0592(4) Uani 1 1 d . . . . .
H6 H 0.126281 0.051848 0.693505 0.071 Uiso 1 1 calc R . . . .
C9 C 0.18821(16) 0.15659(13) 1.01937(15) 0.0634(4) Uani 1 1 d . . . . .
H9 H 0.235858 0.122103 1.076882 0.076 Uiso 1 1 calc R . . . .
C16 C 0.20607(19) 0.80377(12) 0.90080(18) 0.0698(5) Uani 1 1 d . . . . .
H16A H 0.188190 0.869717 0.869977 0.084 Uiso 1 1 calc R . . . .
H16B H 0.174922 0.800670 0.982005 0.084 Uiso 1 1 calc R . . . .
C15 C 0.13617(16) 0.72823(12) 0.82607(16) 0.0628(4) Uani 1 1 d . . . . .
H15A H 0.045002 0.745693 0.817951 0.075 Uiso 1 1 calc R . . . .
H15B H 0.173561 0.725354 0.747151 0.075 Uiso 1 1 calc R . . . .
C3 C -0.20486(19) -0.05165(13) 0.66962(16) 0.0697(5) Uani 1 1 d . . . . .
H3 H -0.288011 -0.078564 0.664627 0.084 Uiso 1 1 calc R . . . .
C5 C 0.0221(2) -0.06484(13) 0.63361(18) 0.0743(5) Uani 1 1 d . . . . .
H5 H 0.091916 -0.100009 0.602925 0.089 Uiso 1 1 calc R . . . .
C4 C -0.1012(2) -0.10362(13) 0.62548(17) 0.0787(6) Uani 1 1 d . . . . .
H4 H -0.114537 -0.165238 0.589978 0.094 Uiso 1 1 calc R . . . .
C17 C 0.4094(3) 0.85651(18) 0.9699(2) 0.1037(8) Uani 1 1 d . . . . .
H17A H 0.398251 0.921515 0.936201 0.156 Uiso 1 1 calc GR . . . .
H17B H 0.500115 0.839580 0.970878 0.156 Uiso 1 1 calc GR . . . .
H17C H 0.377187 0.855962 1.049829 0.156 Uiso 1 1 calc GR . . . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
N1 C11 1.4039(16) . ?
N1 C7 1.4131(17) . ?
N1 C8 1.3871(17) . ?
O1 C14 1.3394(17) . ?
O1 C15 1.4418(17) . ?
C11 C12 1.4430(19) . ?
C11 C10 1.364(2) . ?
O4 C7 1.2057(17) . ?
O2 C16 1.395(2) . ?
O2 C17 1.417(2) . ?
C12 H12 0.9300 . ?
C12 C13 1.3196(19) . ?
C13 H13 0.9300 . ?
C13 C14 1.4631(19) . ?
C7 C1 1.4830(19) . ?
O3 C14 1.1970(18) . ?
C8 H8 0.9300 . ?
C8 C9 1.350(2) . ?
C1 C2 1.3902(19) . ?
C1 C6 1.384(2) . ?
C2 H2 0.9300 . ?
C2 C3 1.374(2) . ?
C10 H10 0.9300 . ?
C10 C9 1.407(2) . ?
C6 H6 0.9300 . ?
C6 C5 1.379(2) . ?
C9 H9 0.9300 . ?
C16 H16A 0.9700 . ?
C16 H16B 0.9700 . ?
C16 C15 1.497(2) . ?
C15 H15A 0.9700 . ?
C15 H15B 0.9700 . ?
C3 H3 0.9300 . ?
C3 C4 1.372(3) . ?
C5 H5 0.9300 . ?
C5 C4 1.374(3) . ?
C4 H4 0.9300 . ?
C17 H17A 0.9600 . ?
C17 H17B 0.9600 . ?
C17 H17C 0.9600 . ?

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
_geom_angle_publ_flag
C11 N1 C7 126.71(11) . . ?
C8 N1 C11 108.23(11) . . ?
C8 N1 C7 124.11(12) . . ?
C14 O1 C15 116.54(12) . . ?
N1 C11 C12 123.56(12) . . ?
C10 C11 N1 106.52(12) . . ?
C10 C11 C12 129.72(13) . . ?
C16 O2 C17 112.12(17) . . ?
C11 C12 H12 117.5 . . ?
C13 C12 C11 124.99(13) . . ?
C13 C12 H12 117.5 . . ?
C12 C13 H13 119.2 . . ?
C12 C13 C14 121.56(13) . . ?
C14 C13 H13 119.2 . . ?
N1 C7 C1 116.65(12) . . ?
O4 C7 N1 120.91(13) . . ?
O4 C7 C1 122.42(13) . . ?
N1 C8 H8 125.7 . . ?
C9 C8 N1 108.56(13) . . ?
C9 C8 H8 125.7 . . ?
O1 C14 C13 111.17(12) . . ?
O3 C14 O1 123.00(14) . . ?
O3 C14 C13 125.83(14) . . ?
C2 C1 C7 117.70(13) . . ?
C6 C1 C7 122.56(13) . . ?
C6 C1 C2 119.66(14) . . ?
C1 C2 H2 120.1 . . ?
C3 C2 C1 119.75(16) . . ?
C3 C2 H2 120.1 . . ?
C11 C10 H10 125.5 . . ?
C11 C10 C9 109.02(14) . . ?
C9 C10 H10 125.5 . . ?
C1 C6 H6 120.1 . . ?
C5 C6 C1 119.80(15) . . ?
C5 C6 H6 120.1 . . ?
C8 C9 C10 107.66(14) . . ?
C8 C9 H9 126.2 . . ?
C10 C9 H9 126.2 . . ?
O2 C16 H16A 109.6 . . ?
O2 C16 H16B 109.6 . . ?
O2 C16 C15 110.43(14) . . ?
H16A C16 H16B 108.1 . . ?
C15 C16 H16A 109.6 . . ?
C15 C16 H16B 109.6 . . ?
O1 C15 C16 107.56(14) . . ?
O1 C15 H15A 110.2 . . ?
O1 C15 H15B 110.2 . . ?
C16 C15 H15A 110.2 . . ?
C16 C15 H15B 110.2 . . ?
H15A C15 H15B 108.5 . . ?
C2 C3 H3 119.8 . . ?
C4 C3 C2 120.40(16) . . ?
C4 C3 H3 119.8 . . ?
C6 C5 H5 119.9 . . ?
C4 C5 C6 120.21(18) . . ?
C4 C5 H5 119.9 . . ?
C3 C4 C5 120.16(16) . . ?
C3 C4 H4 119.9 . . ?
C5 C4 H4 119.9 . . ?
O2 C17 H17A 109.5 . . ?
O2 C17 H17B 109.5 . . ?
O2 C17 H17C 109.5 . . ?
H17A C17 H17B 109.5 . . ?
H17A C17 H17C 109.5 . . ?
H17B C17 H17C 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
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
N1 C11 C12 C13 176.67(14) . . . . ?
N1 C11 C10 C9 -1.17(18) . . . . ?
N1 C7 C1 C2 136.54(13) . . . . ?
N1 C7 C1 C6 -46.7(2) . . . . ?
N1 C8 C9 C10 -0.13(19) . . . . ?
C11 N1 C7 O4 -15.4(2) . . . . ?
C11 N1 C7 C1 166.29(12) . . . . ?
C11 N1 C8 C9 -0.59(17) . . . . ?
C11 C12 C13 C14 177.22(13) . . . . ?
C11 C10 C9 C8 0.8(2) . . . . ?
O4 C7 C1 C2 -41.8(2) . . . . ?
O4 C7 C1 C6 135.00(17) . . . . ?
O2 C16 C15 O1 67.55(18) . . . . ?
C12 C11 C10 C9 -175.98(15) . . . . ?
C12 C13 C14 O1 -172.10(14) . . . . ?
C12 C13 C14 O3 7.8(3) . . . . ?
C7 N1 C11 C12 -14.6(2) . . . . ?
C7 N1 C11 C10 170.22(13) . . . . ?
C7 N1 C8 C9 -170.07(14) . . . . ?
C7 C1 C2 C3 178.26(13) . . . . ?
C7 C1 C6 C5 -176.86(15) . . . . ?
C8 N1 C11 C12 176.29(13) . . . . ?
C8 N1 C11 C10 1.09(16) . . . . ?
C8 N1 C7 O4 152.15(15) . . . . ?
C8 N1 C7 C1 -26.20(19) . . . . ?
C14 O1 C15 C16 176.32(13) . . . . ?
C1 C2 C3 C4 -1.7(2) . . . . ?
C1 C6 C5 C4 -0.9(3) . . . . ?
C2 C1 C6 C5 -0.1(2) . . . . ?
C2 C3 C4 C5 0.7(3) . . . . ?
C10 C11 C12 C13 -9.3(2) . . . . ?
C6 C1 C2 C3 1.4(2) . . . . ?
C6 C5 C4 C3 0.6(3) . . . . ?
C15 O1 C14 C13 176.40(12) . . . . ?
C15 O1 C14 O3 -3.5(2) . . . . ?
C17 O2 C16 C15 179.95(15) . . . . ?

_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details 
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.505
_oxdiff_exptl_absorpt_empirical_full_min 0.771
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: DCM'
