# Electronic Supplementary Material (ESI) for ChemComm.
# 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_P
_database_code_depnum_ccdc_archive 'CCDC 1813609'
_audit_update_record             
;
2017-12-28 deposited with the CCDC.
2018-02-13 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2014/7
_shelx_SHELXL_version_number     2014/7
_chemical_name_systematic        ?
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         'C26 H24 O4'
_chemical_formula_sum            'C26 H24 O4'
_chemical_formula_weight         400.45

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'

_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_H-M_alt        'P 21 21 21'
_space_group_name_Hall           'P 2ac 2ab'

_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.
;

loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x+1/2, -y, z+1/2'
'x+1/2, -y+1/2, -z'
'-x, y+1/2, -z+1/2'

_cell_length_a                   7.4823(3)
_cell_length_b                   13.0258(6)
_cell_length_c                   21.7018(10)
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_volume                     2115.12(16)
_cell_formula_units_Z            4
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    9869
_cell_measurement_theta_min      3.96
_cell_measurement_theta_max      66.64

_exptl_crystal_description       block
_exptl_crystal_colour            colorless
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.258
_exptl_crystal_F_000             752
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.03
_exptl_absorpt_coefficient_mu    0.675
_shelx_estimated_absorpt_T_min   ?
_shelx_estimated_absorpt_T_max   ?
_exptl_absorpt_correction_type   none
_exptl_absorpt_correction_T_min  ?
_exptl_absorpt_correction_T_max  ?
_exptl_absorpt_process_details   ?
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     1.54178
_diffrn_radiation_type           CuK\a
_diffrn_source                   'sealed tube'
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            19246
_diffrn_reflns_av_unetI/netI     0.0195
_diffrn_reflns_av_R_equivalents  0.0270
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_theta_min         3.958
_diffrn_reflns_theta_max         66.619
_diffrn_reflns_theta_full        66.619
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measured_fraction_theta_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_point_group_measured_fraction_full 0.998
_reflns_number_total             3719
_reflns_number_gt                3586
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.735
_reflns_Friedel_fraction_max     1.000
_reflns_Friedel_fraction_full    1.000

_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.
;

_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 (Sheldrick, 2014)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_refine_special_details          
;
 Refined as a 2-component inversion twin.
;
_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+0.2135P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       .
_refine_ls_abs_structure_details 
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.1(2)
_chemical_absolute_configuration ad
_refine_ls_number_reflns         3719
_refine_ls_number_parameters     275
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0296
_refine_ls_R_factor_gt           0.0282
_refine_ls_wR_factor_ref         0.0717
_refine_ls_wR_factor_gt          0.0707
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_restrained_S_all      1.090
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000

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
C1 C 0.8465(3) -0.01753(14) 0.31475(9) 0.0427(4) Uani 1 1 d . . . . .
C2 C 0.6536(2) -0.05507(13) 0.40000(8) 0.0372(4) Uani 1 1 d . . . . .
C3 C 0.6462(2) 0.05793(13) 0.40955(8) 0.0323(4) Uani 1 1 d . . . . .
C4 C 0.8110(2) 0.11476(13) 0.39210(8) 0.0353(4) Uani 1 1 d . . . . .
C5 C 0.7067(3) 0.01131(16) 0.26805(9) 0.0492(5) Uani 1 1 d . . . . .
H5A H 0.6658 -0.0493 0.2472 0.074 Uiso 1 1 calc R U . . .
H5B H 0.7572 0.0580 0.2386 0.074 Uiso 1 1 calc R U . . .
H5C H 0.6079 0.0437 0.2885 0.074 Uiso 1 1 calc R U . . .
C6 C 1.0083(3) -0.06794(19) 0.28705(12) 0.0634(6) Uani 1 1 d . . . . .
H6A H 1.0900 -0.0868 0.3192 0.095 Uiso 1 1 calc R U . . .
H6B H 1.0658 -0.0210 0.2593 0.095 Uiso 1 1 calc R U . . .
H6C H 0.9724 -0.1283 0.2649 0.095 Uiso 1 1 calc R U . . .
C7 C 0.4984(2) 0.10386(14) 0.43270(7) 0.0339(4) Uani 1 1 d . . . . .
C8 C 0.3308(3) 0.04492(16) 0.44737(10) 0.0470(5) Uani 1 1 d . . . . .
H8A H 0.3035 -0.0007 0.4139 0.070 Uiso 1 1 calc R U . . .
H8B H 0.2336 0.0920 0.4532 0.070 Uiso 1 1 calc R U . . .
H8C H 0.3484 0.0058 0.4844 0.070 Uiso 1 1 calc R U . . .
C9 C 0.4839(2) 0.21774(14) 0.44374(8) 0.0366(4) Uani 1 1 d . . . . .
H9A H 0.6002 0.2491 0.4376 0.044 Uiso 1 1 calc R U . . .
H9B H 0.4488 0.2297 0.4862 0.044 Uiso 1 1 calc R U . . .
C10 C 0.3465(2) 0.26935(13) 0.40032(8) 0.0326(4) Uani 1 1 d . . . . .
H10 H 0.2312 0.2356 0.4073 0.039 Uiso 1 1 calc R U . . .
C11 C 0.3949(2) 0.25323(12) 0.33282(8) 0.0317(4) Uani 1 1 d . . . . .
C12 C 0.2746(3) 0.20514(15) 0.29417(8) 0.0428(4) Uani 1 1 d . . . . .
H12 H 0.1666 0.1815 0.3100 0.051 Uiso 1 1 calc R U . . .
C13 C 0.3124(3) 0.19153(18) 0.23208(9) 0.0546(5) Uani 1 1 d . . . . .
H13 H 0.2295 0.1592 0.2067 0.065 Uiso 1 1 calc R U . . .
C14 C 0.4710(3) 0.22533(17) 0.20784(9) 0.0527(5) Uani 1 1 d . . . . .
H14 H 0.4958 0.2165 0.1662 0.063 Uiso 1 1 calc R U . . .
C15 C 0.5928(3) 0.27229(15) 0.24578(9) 0.0496(5) Uani 1 1 d . . . . .
H15 H 0.7011 0.2949 0.2297 0.059 Uiso 1 1 calc R U . . .
C16 C 0.5564(3) 0.28645(14) 0.30790(9) 0.0403(4) Uani 1 1 d . . . . .
H16 H 0.6403 0.3183 0.3330 0.048 Uiso 1 1 calc R U . . .
C17 C 0.3210(2) 0.38308(13) 0.41399(8) 0.0326(4) Uani 1 1 d . . . . .
C18 C 0.1550(2) 0.42628(13) 0.40630(8) 0.0323(4) Uani 1 1 d . . . . .
H18 H 0.0595 0.3842 0.3955 0.039 Uiso 1 1 calc R U . . .
C19 C 0.1245(2) 0.53265(12) 0.41427(7) 0.0316(4) Uani 1 1 d . . . . .
C20 C -0.0457(2) 0.57830(14) 0.40562(8) 0.0377(4) Uani 1 1 d . . . . .
H20 H -0.1422 0.5375 0.3942 0.045 Uiso 1 1 calc R U . . .
C21 C -0.0703(3) 0.68110(14) 0.41375(9) 0.0423(4) Uani 1 1 d . . . . .
H21 H -0.1830 0.7097 0.4082 0.051 Uiso 1 1 calc R U . . .
C22 C 0.0748(3) 0.74422(14) 0.43051(8) 0.0429(4) Uani 1 1 d . . . . .
H22 H 0.0572 0.8144 0.4356 0.051 Uiso 1 1 calc R U . . .
C23 C 0.2407(3) 0.70354(14) 0.43939(8) 0.0395(4) Uani 1 1 d . . . . .
H23 H 0.3352 0.7461 0.4505 0.047 Uiso 1 1 calc R U . . .
C24 C 0.2702(2) 0.59660(13) 0.43179(8) 0.0345(4) Uani 1 1 d . . . . .
C25 C 0.4391(2) 0.55068(14) 0.44006(9) 0.0414(4) Uani 1 1 d . . . . .
H25 H 0.5357 0.5914 0.4515 0.050 Uiso 1 1 calc R U . . .
C26 C 0.4641(2) 0.44774(14) 0.43160(9) 0.0407(4) Uani 1 1 d . . . . .
H26 H 0.5771 0.4197 0.4375 0.049 Uiso 1 1 calc R U . . .
O1 O 0.91187(17) 0.07135(10) 0.34742(6) 0.0468(3) Uani 1 1 d . . . . .
O2 O 0.77777(18) -0.08884(9) 0.35887(6) 0.0437(3) Uani 1 1 d . . . . .
O3 O 0.86645(17) 0.19289(10) 0.41485(6) 0.0447(3) Uani 1 1 d . . . . .
O4 O 0.5682(2) -0.11828(10) 0.42720(6) 0.0504(4) Uani 1 1 d . . . . .


_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
C1 O2 1.430(2) . ?
C1 O1 1.443(2) . ?
C1 C6 1.503(3) . ?
C1 C5 1.504(3) . ?
C2 O4 1.198(2) . ?
C2 O2 1.361(2) . ?
C2 C3 1.487(2) . ?
C3 C7 1.354(2) . ?
C3 C4 1.487(2) . ?
C4 O3 1.205(2) . ?
C4 O1 1.353(2) . ?
C5 H5A 0.9600 . ?
C5 H5B 0.9600 . ?
C5 H5C 0.9600 . ?
C6 H6A 0.9600 . ?
C6 H6B 0.9600 . ?
C6 H6C 0.9600 . ?
C7 C8 1.505(3) . ?
C7 C9 1.506(2) . ?
C8 H8A 0.9600 . ?
C8 H8B 0.9600 . ?
C8 H8C 0.9600 . ?
C9 C10 1.548(2) . ?
C9 H9A 0.9700 . ?
C9 H9B 0.9700 . ?
C10 C17 1.523(2) . ?
C10 C11 1.523(2) . ?
C10 H10 0.9800 . ?
C11 C12 1.381(3) . ?
C11 C16 1.392(2) . ?
C12 C13 1.388(3) . ?
C12 H12 0.9300 . ?
C13 C14 1.371(3) . ?
C13 H13 0.9300 . ?
C14 C15 1.372(3) . ?
C14 H14 0.9300 . ?
C15 C16 1.388(3) . ?
C15 H15 0.9300 . ?
C16 H16 0.9300 . ?
C17 C18 1.374(2) . ?
C17 C26 1.415(2) . ?
C18 C19 1.415(2) . ?
C18 H18 0.9300 . ?
C19 C20 1.418(2) . ?
C19 C24 1.424(2) . ?
C20 C21 1.363(3) . ?
C20 H20 0.9300 . ?
C21 C22 1.410(3) . ?
C21 H21 0.9300 . ?
C22 C23 1.363(3) . ?
C22 H22 0.9300 . ?
C23 C24 1.420(2) . ?
C23 H23 0.9300 . ?
C24 C25 1.410(3) . ?
C25 C26 1.366(3) . ?
C25 H25 0.9300 . ?
C26 H26 0.9300 . ?

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
O2 C1 O1 108.30(15) . . ?
O2 C1 C6 105.89(16) . . ?
O1 C1 C6 105.92(16) . . ?
O2 C1 C5 111.30(16) . . ?
O1 C1 C5 111.49(15) . . ?
C6 C1 C5 113.57(18) . . ?
O4 C2 O2 117.72(16) . . ?
O4 C2 C3 126.26(17) . . ?
O2 C2 C3 115.90(15) . . ?
C7 C3 C4 123.48(15) . . ?
C7 C3 C2 121.31(16) . . ?
C4 C3 C2 115.21(15) . . ?
O3 C4 O1 117.03(16) . . ?
O3 C4 C3 126.99(16) . . ?
O1 C4 C3 115.93(14) . . ?
C1 C5 H5A 109.5 . . ?
C1 C5 H5B 109.5 . . ?
H5A C5 H5B 109.5 . . ?
C1 C5 H5C 109.5 . . ?
H5A C5 H5C 109.5 . . ?
H5B C5 H5C 109.5 . . ?
C1 C6 H6A 109.5 . . ?
C1 C6 H6B 109.5 . . ?
H6A C6 H6B 109.5 . . ?
C1 C6 H6C 109.5 . . ?
H6A C6 H6C 109.5 . . ?
H6B C6 H6C 109.5 . . ?
C3 C7 C8 122.26(16) . . ?
C3 C7 C9 123.56(16) . . ?
C8 C7 C9 114.14(16) . . ?
C7 C8 H8A 109.5 . . ?
C7 C8 H8B 109.5 . . ?
H8A C8 H8B 109.5 . . ?
C7 C8 H8C 109.5 . . ?
H8A C8 H8C 109.5 . . ?
H8B C8 H8C 109.5 . . ?
C7 C9 C10 112.23(14) . . ?
C7 C9 H9A 109.2 . . ?
C10 C9 H9A 109.2 . . ?
C7 C9 H9B 109.2 . . ?
C10 C9 H9B 109.2 . . ?
H9A C9 H9B 107.9 . . ?
C17 C10 C11 110.56(13) . . ?
C17 C10 C9 112.78(14) . . ?
C11 C10 C9 111.56(14) . . ?
C17 C10 H10 107.2 . . ?
C11 C10 H10 107.2 . . ?
C9 C10 H10 107.2 . . ?
C12 C11 C16 118.07(16) . . ?
C12 C11 C10 119.44(16) . . ?
C16 C11 C10 122.48(16) . . ?
C11 C12 C13 120.97(19) . . ?
C11 C12 H12 119.5 . . ?
C13 C12 H12 119.5 . . ?
C14 C13 C12 120.5(2) . . ?
C14 C13 H13 119.7 . . ?
C12 C13 H13 119.7 . . ?
C13 C14 C15 119.21(19) . . ?
C13 C14 H14 120.4 . . ?
C15 C14 H14 120.4 . . ?
C14 C15 C16 120.8(2) . . ?
C14 C15 H15 119.6 . . ?
C16 C15 H15 119.6 . . ?
C15 C16 C11 120.45(19) . . ?
C15 C16 H16 119.8 . . ?
C11 C16 H16 119.8 . . ?
C18 C17 C26 118.25(15) . . ?
C18 C17 C10 119.23(15) . . ?
C26 C17 C10 122.45(15) . . ?
C17 C18 C19 122.16(16) . . ?
C17 C18 H18 118.9 . . ?
C19 C18 H18 118.9 . . ?
C18 C19 C20 122.64(16) . . ?
C18 C19 C24 118.82(15) . . ?
C20 C19 C24 118.54(15) . . ?
C21 C20 C19 121.05(17) . . ?
C21 C20 H20 119.5 . . ?
C19 C20 H20 119.5 . . ?
C20 C21 C22 120.18(17) . . ?
C20 C21 H21 119.9 . . ?
C22 C21 H21 119.9 . . ?
C23 C22 C21 120.73(16) . . ?
C23 C22 H22 119.6 . . ?
C21 C22 H22 119.6 . . ?
C22 C23 C24 120.40(17) . . ?
C22 C23 H23 119.8 . . ?
C24 C23 H23 119.8 . . ?
C25 C24 C23 122.70(16) . . ?
C25 C24 C19 118.19(15) . . ?
C23 C24 C19 119.10(16) . . ?
C26 C25 C24 121.45(16) . . ?
C26 C25 H25 119.3 . . ?
C24 C25 H25 119.3 . . ?
C25 C26 C17 121.13(17) . . ?
C25 C26 H26 119.4 . . ?
C17 C26 H26 119.4 . . ?
C4 O1 C1 119.90(14) . . ?
C2 O2 C1 118.34(13) . . ?

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
O4 C2 C3 C7 -25.4(3) . . . . ?
O2 C2 C3 C7 158.77(16) . . . . ?
O4 C2 C3 C4 154.42(18) . . . . ?
O2 C2 C3 C4 -21.4(2) . . . . ?
C7 C3 C4 O3 30.2(3) . . . . ?
C2 C3 C4 O3 -149.67(18) . . . . ?
C7 C3 C4 O1 -152.49(16) . . . . ?
C2 C3 C4 O1 27.7(2) . . . . ?
C4 C3 C7 C8 177.29(16) . . . . ?
C2 C3 C7 C8 -2.9(3) . . . . ?
C4 C3 C7 C9 -0.3(3) . . . . ?
C2 C3 C7 C9 179.55(16) . . . . ?
C3 C7 C9 C10 112.82(19) . . . . ?
C8 C7 C9 C10 -64.9(2) . . . . ?
C7 C9 C10 C17 175.97(14) . . . . ?
C7 C9 C10 C11 -58.89(19) . . . . ?
C17 C10 C11 C12 -111.97(18) . . . . ?
C9 C10 C11 C12 121.67(18) . . . . ?
C17 C10 C11 C16 67.2(2) . . . . ?
C9 C10 C11 C16 -59.2(2) . . . . ?
C16 C11 C12 C13 -0.8(3) . . . . ?
C10 C11 C12 C13 178.35(18) . . . . ?
C11 C12 C13 C14 0.3(3) . . . . ?
C12 C13 C14 C15 0.4(3) . . . . ?
C13 C14 C15 C16 -0.5(3) . . . . ?
C14 C15 C16 C11 -0.1(3) . . . . ?
C12 C11 C16 C15 0.7(3) . . . . ?
C10 C11 C16 C15 -178.42(17) . . . . ?
C11 C10 C17 C18 88.82(18) . . . . ?
C9 C10 C17 C18 -145.50(16) . . . . ?
C11 C10 C17 C26 -88.1(2) . . . . ?
C9 C10 C17 C26 37.6(2) . . . . ?
C26 C17 C18 C19 1.2(3) . . . . ?
C10 C17 C18 C19 -175.78(15) . . . . ?
C17 C18 C19 C20 179.10(16) . . . . ?
C17 C18 C19 C24 -1.0(2) . . . . ?
C18 C19 C20 C21 179.95(16) . . . . ?
C24 C19 C20 C21 0.1(3) . . . . ?
C19 C20 C21 C22 0.6(3) . . . . ?
C20 C21 C22 C23 -0.6(3) . . . . ?
C21 C22 C23 C24 0.1(3) . . . . ?
C22 C23 C24 C25 179.63(18) . . . . ?
C22 C23 C24 C19 0.5(3) . . . . ?
C18 C19 C24 C25 0.4(2) . . . . ?
C20 C19 C24 C25 -179.74(16) . . . . ?
C18 C19 C24 C23 179.50(16) . . . . ?
C20 C19 C24 C23 -0.6(2) . . . . ?
C23 C24 C25 C26 -179.06(18) . . . . ?
C19 C24 C25 C26 0.0(3) . . . . ?
C24 C25 C26 C17 0.2(3) . . . . ?
C18 C17 C26 C25 -0.8(3) . . . . ?
C10 C17 C26 C25 176.11(17) . . . . ?
O3 C4 O1 C1 -174.95(17) . . . . ?
C3 C4 O1 C1 7.4(2) . . . . ?
O2 C1 O1 C4 -46.6(2) . . . . ?
C6 C1 O1 C4 -159.79(18) . . . . ?
C5 C1 O1 C4 76.2(2) . . . . ?
O4 C2 O2 C1 163.68(17) . . . . ?
C3 C2 O2 C1 -20.1(2) . . . . ?
O1 C1 O2 C2 53.3(2) . . . . ?
C6 C1 O2 C2 166.54(17) . . . . ?
C5 C1 O2 C2 -69.6(2) . . . . ?

_refine_diff_density_max         0.110
_refine_diff_density_min         -0.146
_refine_diff_density_rms         0.031

