# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry.
# This journal is © The Royal Society of Chemistry 2018

####################################################################### 
# 
# 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_shelx
_database_code_depnum_ccdc_archive 'CCDC 1846504'
_audit_update_record             
;
2018-09-20 deposited with the CCDC.
2018-09-21 downloaded from the CCDC.
;

_audit_creation_date             2018-09-18T19:48:47-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4.5
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic

#----------------------------------------------------------------------------#
#                   CHEMICAL INFORMATION                                     #
#----------------------------------------------------------------------------#

_chemical_formula_moiety         'C23  H20  N2  O3'
_chemical_formula_sum            'C23 H20 N2 O3'
_chemical_formula_weight         372.41
_chemical_absolute_configuration unk

#----------------------------------------------------------------------------#
#                   UNIT CELL INFORMATION                                    #
#----------------------------------------------------------------------------#

_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 21'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_Int_Tables_number      4
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z'

_cell_length_a                   10.8008(7)
_cell_length_b                   7.1714(3)
_cell_length_c                   12.5418(7)
_cell_angle_alpha                90
_cell_angle_beta                 101.366(2)
_cell_angle_gamma                90
_cell_volume                     952.40(9)
_cell_formula_units_Z            2
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    5130
_cell_measurement_theta_min      2.28
_cell_measurement_theta_max      27.03
_cell_measurement_wavelength     0.71073

#----------------------------------------------------------------------------#
#                   CRYSTAL INFORMATION                                      #
#----------------------------------------------------------------------------#

_exptl_crystal_description       Rectangular
_exptl_crystal_colour            colourless
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             392

#----------------------------------------------------------------------------#
#                   ABSORPTION CORRECTION                                    #
#----------------------------------------------------------------------------#

_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_type   none
_shelx_estimated_absorpt_T_min   0.979
_shelx_estimated_absorpt_T_max   0.991

#----------------------------------------------------------------------------#
#                   DATA COLLECTION                                          #
#----------------------------------------------------------------------------#

_diffrn_ambient_temperature      296(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_probe          x-ray
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_standards_number         0
_diffrn_standards_interval_time  .
_diffrn_standards_interval_count .
_diffrn_standards_decay_%        ?
_diffrn_reflns_av_R_equivalents  0.0175
_diffrn_reflns_av_unetI/netI     0.0206
_diffrn_reflns_number            7753
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_theta_min         1.656
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_full        24.999
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_reflns_Laue_measured_fraction_full 1
_diffrn_reflns_Laue_measured_fraction_max 1
_diffrn_reflns_point_group_measured_fraction_full 0.925
_diffrn_reflns_point_group_measured_fraction_max 0.925
_reflns_Friedel_fraction_full    0.836
_reflns_Friedel_fraction_max     0.836
_reflns_Friedel_coverage         0.703
_reflns_number_total             3120
_reflns_number_gt                2963
_reflns_threshold_expression     'I > 2σ(I)'

#----------------------------------------------------------------------------#
#                   COMPUTER PROGRAMS USED                                   #
#----------------------------------------------------------------------------#

_computing_data_collection       'Bruker APEX2'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

#----------------------------------------------------------------------------#
#                   STRUCTURE SOLUTION                                       #
#----------------------------------------------------------------------------#

_atom_sites_solution_hydrogens   geom

#----------------------------------------------------------------------------#
#                   REFINEMENT INFORMATION                                   #
#----------------------------------------------------------------------------#

_shelx_SHELXL_version_number     2014/7
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0385P)²+0.1196P] where P=(Fo²+2Fc²)/3'
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_coef       0.066(5)
_refine_ls_number_reflns         3120
_refine_ls_number_parameters     256
_refine_ls_number_restraints     1
_refine_ls_number_constraints    0
_refine_ls_R_factor_all          0.0305
_refine_ls_R_factor_gt           0.0283
_refine_ls_wR_factor_ref         0.0718
_refine_ls_wR_factor_gt          0.0697
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_restrained_S_all      1.029
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_abs_structure_details 
;
 Flack x determined using 1181 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.7(3)
_refine_diff_density_max         0.13
_refine_diff_density_min         -0.12
_refine_diff_density_rms         0.027

#----------------------------------------------------------------------------#
#                   CONSTRAINTS AND RESTRAINTS                               #
#----------------------------------------------------------------------------#


#----------------------------------------------------------------------------#
#                   ATOMIC TYPES, COORDINATES AND THERMAL PARAMETERS         #
#----------------------------------------------------------------------------#

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 0 '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 0.006 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

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 0.65635(16) 0.1568(2) 0.67744(12) 0.0328(4) Uani 1 1 d . . . . .
O1 O 0.32683(16) 0.1718(2) 0.96223(13) 0.0511(4) Uani 1 1 d . . . . .
C6 C 0.60215(19) 0.0768(3) 0.83657(15) 0.0316(4) Uani 1 1 d . . . . .
C1 C 0.56333(19) 0.1784(3) 0.74004(15) 0.0320(5) Uani 1 1 d . . . . .
O2 O 0.74641(15) -0.1614(3) 0.53290(12) 0.0488(4) Uani 1 1 d . . . . .
C16 C 0.8396(2) -0.0805(3) 0.57546(16) 0.0345(5) Uani 1 1 d . . . . .
C5 C 0.5249(2) 0.0710(3) 0.91492(15) 0.0366(5) Uani 1 1 d . . . . .
H5 H 0.5493 0.0039 0.9791 0.044 Uiso 1 1 calc R U . . .
C4 C 0.4126(2) 0.1672(3) 0.89401(16) 0.0372(5) Uani 1 1 d . . . . .
C3 C 0.3771(2) 0.2729(3) 0.79866(17) 0.0423(6) Uani 1 1 d . . . . .
H3 H 0.3018 0.3395 0.7875 0.051 Uiso 1 1 calc R U . . .
C10 C 0.9404(2) -0.1707(4) 0.76155(17) 0.0420(5) Uani 1 1 d . . . . .
O3 O 0.93670(15) -0.0431(3) 0.52746(12) 0.0486(4) Uani 1 1 d . . . . .
N2 N 0.75183(18) 0.2948(3) 0.54624(15) 0.0433(5) Uani 1 1 d . . . . .
C23 C 0.5352(2) 0.2026(3) 0.49395(16) 0.0356(5) Uani 1 1 d . . . . .
H23 H 0.4637 0.1519 0.5138 0.043 Uiso 1 1 calc R U . . .
C8 C 0.75126(19) 0.0415(3) 0.73435(15) 0.0314(4) Uani 1 1 d . . . . .
C21 C 0.6414(2) 0.3319(4) 0.36177(18) 0.0477(6) Uani 1 1 d . . . . .
H21 H 0.6429 0.3693 0.291 0.057 Uiso 1 1 calc R U . . .
C2 C 0.4515(2) 0.2802(3) 0.72114(17) 0.0391(5) Uani 1 1 d . . . . .
H2 H 0.4277 0.3508 0.6583 0.047 Uiso 1 1 calc R U . . .
C19 C 0.6465(2) 0.2221(3) 0.56870(16) 0.0322(5) Uani 1 1 d . . . . .
C9 C 0.8685(2) -0.0140(3) 0.69295(15) 0.0349(5) Uani 1 1 d . . . . .
H9 H 0.9241 0.0949 0.6976 0.042 Uiso 1 1 calc R U . . .
C7 C 0.7203(2) -0.0062(3) 0.83074(15) 0.0333(5) Uani 1 1 d . . . . .
H7 H 0.7684 -0.0807 0.884 0.04 Uiso 1 1 calc R U . . .
C22 C 0.5331(2) 0.2606(3) 0.38842(17) 0.0433(6) Uani 1 1 d . . . . .
H22 H 0.4593 0.2517 0.336 0.052 Uiso 1 1 calc R U . . .
C20 C 0.7470(2) 0.3461(4) 0.44243(19) 0.0502(6) Uani 1 1 d . . . . .
H20 H 0.82 0.3943 0.4241 0.06 Uiso 1 1 calc R U . . .
C17 C 0.9211(3) -0.0973(5) 0.41438(19) 0.0629(8) Uani 1 1 d . . . . .
H17A H 0.8895 -0.2226 0.4056 0.094 Uiso 1 1 calc R U . . .
H17B H 1.0011 -0.0907 0.3922 0.094 Uiso 1 1 calc R U . . .
H17C H 0.8623 -0.0146 0.3704 0.094 Uiso 1 1 calc R U . . .
C18 C 0.3597(3) 0.0702(4) 1.0614(2) 0.0652(8) Uani 1 1 d . . . . .
H18A H 0.3716 -0.0588 1.0456 0.098 Uiso 1 1 calc R U . . .
H18B H 0.2931 0.0814 1.1017 0.098 Uiso 1 1 calc R U . . .
H18C H 0.4365 0.1197 1.1037 0.098 Uiso 1 1 calc R U . . .
C14 C 0.9523(4) -0.4913(4) 0.8222(2) 0.0713(9) Uani 1 1 d . . . . .
H14 H 0.9156 -0.6087 0.8216 0.086 Uiso 1 1 calc R U . . .
C15 C 0.8886(3) -0.3479(4) 0.76082(19) 0.0499(6) Uani 1 1 d . . . . .
H15 H 0.8094 -0.3707 0.7182 0.06 Uiso 1 1 calc R U . . .
C11 C 1.0586(3) -0.1395(6) 0.8242(2) 0.0775(10) Uani 1 1 d . . . . .
H11 H 1.0955 -0.0221 0.8258 0.093 Uiso 1 1 calc R U . . .
C13 C 1.0694(5) -0.4592(7) 0.8834(3) 0.1016(15) Uani 1 1 d . . . . .
H13 H 1.1131 -0.5556 0.9239 0.122 Uiso 1 1 calc R U . . .
C12 C 1.1228(4) -0.2864(8) 0.8855(3) 0.1142(17) Uani 1 1 d . . . . .
H12 H 1.2025 -0.2657 0.9279 0.137 Uiso 1 1 calc R U . . .



#----------------------------------------------------------------------------#
#                   MOLECULAR GEOMETRY                                       #
#----------------------------------------------------------------------------#

_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 C8 1.398(3) . ?
N1 C1 1.400(2) . ?
N1 C19 1.426(2) . ?
O1 C4 1.380(2) . ?
O1 C18 1.425(3) . ?
C6 C1 1.404(3) . ?
C6 C5 1.409(3) . ?
C6 C7 1.424(3) . ?
C1 C2 1.391(3) . ?
O2 C16 1.193(3) . ?
C16 O3 1.335(2) . ?
C16 C9 1.522(3) . ?
C5 C4 1.375(3) . ?
C5 H5 0.93 . ?
C4 C3 1.404(3) . ?
C3 C2 1.379(3) . ?
C3 H3 0.93 . ?
C10 C11 1.379(4) . ?
C10 C15 1.388(4) . ?
C10 C9 1.531(3) . ?
O3 C17 1.448(3) . ?
N2 C19 1.331(3) . ?
N2 C20 1.344(3) . ?
C23 C19 1.378(3) . ?
C23 C22 1.384(3) . ?
C23 H23 0.93 . ?
C8 C7 1.360(3) . ?
C8 C9 1.513(3) . ?
C21 C20 1.371(3) . ?
C21 C22 1.377(4) . ?
C21 H21 0.93 . ?
C2 H2 0.93 . ?
C9 H9 0.98 . ?
C7 H7 0.93 . ?
C22 H22 0.93 . ?
C20 H20 0.93 . ?
C17 H17A 0.96 . ?
C17 H17B 0.96 . ?
C17 H17C 0.96 . ?
C18 H18A 0.96 . ?
C18 H18B 0.96 . ?
C18 H18C 0.96 . ?
C14 C13 1.363(6) . ?
C14 C15 1.384(4) . ?
C14 H14 0.93 . ?
C15 H15 0.93 . ?
C11 C12 1.404(5) . ?
C11 H11 0.93 . ?
C13 C12 1.366(7) . ?
C13 H13 0.93 . ?
C12 H12 0.93 . ?

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
C8 N1 C1 108.31(15) . . ?
C8 N1 C19 126.27(16) . . ?
C1 N1 C19 124.96(16) . . ?
C4 O1 C18 116.56(18) . . ?
C1 C6 C5 119.95(18) . . ?
C1 C6 C7 106.92(16) . . ?
C5 C6 C7 133.12(19) . . ?
C2 C1 N1 131.10(18) . . ?
C2 C1 C6 121.39(18) . . ?
N1 C1 C6 107.50(17) . . ?
O2 C16 O3 124.37(19) . . ?
O2 C16 C9 125.41(19) . . ?
O3 C16 C9 110.15(18) . . ?
C4 C5 C6 118.25(19) . . ?
C4 C5 H5 120.9 . . ?
C6 C5 H5 120.9 . . ?
C5 C4 O1 124.64(19) . . ?
C5 C4 C3 121.05(18) . . ?
O1 C4 C3 114.30(19) . . ?
C2 C3 C4 121.5(2) . . ?
C2 C3 H3 119.3 . . ?
C4 C3 H3 119.3 . . ?
C11 C10 C15 118.6(3) . . ?
C11 C10 C9 120.8(3) . . ?
C15 C10 C9 120.6(2) . . ?
C16 O3 C17 115.94(19) . . ?
C19 N2 C20 116.1(2) . . ?
C19 C23 C22 117.9(2) . . ?
C19 C23 H23 121.1 . . ?
C22 C23 H23 121.1 . . ?
C7 C8 N1 108.58(18) . . ?
C7 C8 C9 127.41(18) . . ?
N1 C8 C9 123.99(17) . . ?
C20 C21 C22 118.1(2) . . ?
C20 C21 H21 120.9 . . ?
C22 C21 H21 120.9 . . ?
C3 C2 C1 117.84(19) . . ?
C3 C2 H2 121.1 . . ?
C1 C2 H2 121.1 . . ?
N2 C19 C23 124.29(18) . . ?
N2 C19 N1 115.15(18) . . ?
C23 C19 N1 120.53(18) . . ?
C8 C9 C16 112.91(17) . . ?
C8 C9 C10 111.51(17) . . ?
C16 C9 C10 107.36(18) . . ?
C8 C9 H9 108.3 . . ?
C16 C9 H9 108.3 . . ?
C10 C9 H9 108.3 . . ?
C8 C7 C6 108.68(17) . . ?
C8 C7 H7 125.7 . . ?
C6 C7 H7 125.7 . . ?
C21 C22 C23 119.3(2) . . ?
C21 C22 H22 120.3 . . ?
C23 C22 H22 120.3 . . ?
N2 C20 C21 124.2(2) . . ?
N2 C20 H20 117.9 . . ?
C21 C20 H20 117.9 . . ?
O3 C17 H17A 109.5 . . ?
O3 C17 H17B 109.5 . . ?
H17A C17 H17B 109.5 . . ?
O3 C17 H17C 109.5 . . ?
H17A C17 H17C 109.5 . . ?
H17B C17 H17C 109.5 . . ?
O1 C18 H18A 109.5 . . ?
O1 C18 H18B 109.5 . . ?
H18A C18 H18B 109.5 . . ?
O1 C18 H18C 109.5 . . ?
H18A C18 H18C 109.5 . . ?
H18B C18 H18C 109.5 . . ?
C13 C14 C15 119.5(3) . . ?
C13 C14 H14 120.3 . . ?
C15 C14 H14 120.3 . . ?
C14 C15 C10 121.4(3) . . ?
C14 C15 H15 119.3 . . ?
C10 C15 H15 119.3 . . ?
C10 C11 C12 119.5(4) . . ?
C10 C11 H11 120.2 . . ?
C12 C11 H11 120.2 . . ?
C14 C13 C12 120.4(3) . . ?
C14 C13 H13 119.8 . . ?
C12 C13 H13 119.8 . . ?
C13 C12 C11 120.6(3) . . ?
C13 C12 H12 119.7 . . ?
C11 C12 H12 119.7 . . ?

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
C8 N1 C1 C2 179.0(2) . . . . ?
C19 N1 C1 C2 -8.4(3) . . . . ?
C8 N1 C1 C6 0.5(2) . . . . ?
C19 N1 C1 C6 173.17(18) . . . . ?
C5 C6 C1 C2 2.4(3) . . . . ?
C7 C6 C1 C2 -178.64(19) . . . . ?
C5 C6 C1 N1 -178.96(18) . . . . ?
C7 C6 C1 N1 0.0(2) . . . . ?
C1 C6 C5 C4 -0.3(3) . . . . ?
C7 C6 C5 C4 -178.9(2) . . . . ?
C6 C5 C4 O1 178.9(2) . . . . ?
C6 C5 C4 C3 -1.8(3) . . . . ?
C18 O1 C4 C5 0.7(3) . . . . ?
C18 O1 C4 C3 -178.6(2) . . . . ?
C5 C4 C3 C2 1.8(3) . . . . ?
O1 C4 C3 C2 -178.8(2) . . . . ?
O2 C16 O3 C17 3.6(3) . . . . ?
C9 C16 O3 C17 -179.3(2) . . . . ?
C1 N1 C8 C7 -0.9(2) . . . . ?
C19 N1 C8 C7 -173.40(19) . . . . ?
C1 N1 C8 C9 -179.83(19) . . . . ?
C19 N1 C8 C9 7.6(3) . . . . ?
C4 C3 C2 C1 0.3(3) . . . . ?
N1 C1 C2 C3 179.4(2) . . . . ?
C6 C1 C2 C3 -2.3(3) . . . . ?
C20 N2 C19 C23 -1.9(3) . . . . ?
C20 N2 C19 N1 175.8(2) . . . . ?
C22 C23 C19 N2 0.6(3) . . . . ?
C22 C23 C19 N1 -177.01(19) . . . . ?
C8 N1 C19 N2 -48.5(3) . . . . ?
C1 N1 C19 N2 140.1(2) . . . . ?
C8 N1 C19 C23 129.3(2) . . . . ?
C1 N1 C19 C23 -42.0(3) . . . . ?
C7 C8 C9 C16 133.8(2) . . . . ?
N1 C8 C9 C16 -47.5(3) . . . . ?
C7 C8 C9 C10 12.8(3) . . . . ?
N1 C8 C9 C10 -168.46(19) . . . . ?
O2 C16 C9 C8 -32.4(3) . . . . ?
O3 C16 C9 C8 150.43(18) . . . . ?
O2 C16 C9 C10 90.9(3) . . . . ?
O3 C16 C9 C10 -86.3(2) . . . . ?
C11 C10 C9 C8 -113.4(3) . . . . ?
C15 C10 C9 C8 67.5(2) . . . . ?
C11 C10 C9 C16 122.4(2) . . . . ?
C15 C10 C9 C16 -56.7(3) . . . . ?
N1 C8 C7 C6 0.9(2) . . . . ?
C9 C8 C7 C6 179.8(2) . . . . ?
C1 C6 C7 C8 -0.6(2) . . . . ?
C5 C6 C7 C8 178.2(2) . . . . ?
C20 C21 C22 C23 -1.4(4) . . . . ?
C19 C23 C22 C21 1.1(3) . . . . ?
C19 N2 C20 C21 1.6(4) . . . . ?
C22 C21 C20 N2 0.0(4) . . . . ?
C13 C14 C15 C10 -1.1(4) . . . . ?
C11 C10 C15 C14 0.7(3) . . . . ?
C9 C10 C15 C14 179.9(2) . . . . ?
C15 C10 C11 C12 -0.3(4) . . . . ?
C9 C10 C11 C12 -179.4(3) . . . . ?
C15 C14 C13 C12 0.9(6) . . . . ?
C14 C13 C12 C11 -0.5(7) . . . . ?
C10 C11 C12 C13 0.1(6) . . . . ?


# END of CIF
_exptl_crystal_recrystallization_method 
'Re-crystallisation from solvent: Ethyl acetate and hexane'
